---
_id: '40854'
author:
- first_name: Li
  full_name: Ping, Li
  last_name: Ping
- first_name: Jun
  full_name: Tong, Jun
  last_name: Tong
- first_name: Xiaojun
  full_name: Yuan, Xiaojun
  last_name: Yuan
- first_name: Qinghua
  full_name: Guo, Qinghua
  last_name: Guo
citation:
  ama: Ping L, Tong J, Yuan X, Guo Q. Superposition coded modulation and iterative
    linear MMSE detection. <i>IEEE J\ Select\ Areas Comm</i>. 2009;27(6):995–1004.
    doi:<a href="https://doi.org/10.1109/JSAC.2009.090817">10.1109/JSAC.2009.090817</a>
  apa: Ping, L., Tong, J., Yuan, X., &#38; Guo, Q. (2009). Superposition coded modulation
    and iterative linear MMSE detection. <i>IEEE J.\ Select.\ Areas Comm.</i>, <i>27</i>(6),
    995–1004. <a href="https://doi.org/10.1109/JSAC.2009.090817">https://doi.org/10.1109/JSAC.2009.090817</a>
  bibtex: '@article{Ping_Tong_Yuan_Guo_2009, title={Superposition coded modulation
    and iterative linear MMSE detection}, volume={27}, DOI={<a href="https://doi.org/10.1109/JSAC.2009.090817">10.1109/JSAC.2009.090817</a>},
    number={6}, journal={IEEE J.\ Select.\ Areas Comm.}, author={Ping, Li and Tong,
    Jun and Yuan, Xiaojun and Guo, Qinghua}, year={2009}, pages={995–1004} }'
  chicago: 'Ping, Li, Jun Tong, Xiaojun Yuan, and Qinghua Guo. “Superposition Coded
    Modulation and Iterative Linear MMSE Detection.” <i>IEEE J.\ Select.\ Areas Comm.</i>
    27, no. 6 (2009): 995–1004. <a href="https://doi.org/10.1109/JSAC.2009.090817">https://doi.org/10.1109/JSAC.2009.090817</a>.'
  ieee: 'L. Ping, J. Tong, X. Yuan, and Q. Guo, “Superposition coded modulation and
    iterative linear MMSE detection,” <i>IEEE J.\ Select.\ Areas Comm.</i>, vol. 27,
    no. 6, pp. 995–1004, 2009, doi: <a href="https://doi.org/10.1109/JSAC.2009.090817">10.1109/JSAC.2009.090817</a>.'
  mla: Ping, Li, et al. “Superposition Coded Modulation and Iterative Linear MMSE
    Detection.” <i>IEEE J.\ Select.\ Areas Comm.</i>, vol. 27, no. 6, 2009, pp. 995–1004,
    doi:<a href="https://doi.org/10.1109/JSAC.2009.090817">10.1109/JSAC.2009.090817</a>.
  short: L. Ping, J. Tong, X. Yuan, Q. Guo, IEEE J.\ Select.\ Areas Comm. 27 (2009)
    995–1004.
date_created: 2023-01-30T11:52:02Z
date_updated: 2023-01-30T11:55:40Z
department:
- _id: '263'
doi: 10.1109/JSAC.2009.090817
intvolume: '        27'
issue: '6'
page: 995–1004
publication: IEEE J.\ Select.\ Areas Comm.
status: public
title: Superposition coded modulation and iterative linear MMSE detection
type: journal_article
user_id: '43497'
volume: 27
year: '2009'
...
---
_id: '40856'
author:
- first_name: Jun
  full_name: Tong, Jun
  last_name: Tong
- first_name: Li
  full_name: Ping, Li
  last_name: Ping
- first_name: Xiao
  full_name: Ma, Xiao
  last_name: Ma
citation:
  ama: Tong J, Ping L, Ma X. Superposition coded modulation with peak-power limitation.
    <i>IEEE Trans\ Inform\ Theory</i>. 2009;55(6):2562–2576. doi:<a href="https://doi.org/10.1109/TIT.2009.2018224">10.1109/TIT.2009.2018224</a>
  apa: Tong, J., Ping, L., &#38; Ma, X. (2009). Superposition coded modulation with
    peak-power limitation. <i>IEEE Trans.\ Inform.\ Theory</i>, <i>55</i>(6), 2562–2576.
    <a href="https://doi.org/10.1109/TIT.2009.2018224">https://doi.org/10.1109/TIT.2009.2018224</a>
  bibtex: '@article{Tong_Ping_Ma_2009, title={Superposition coded modulation with
    peak-power limitation}, volume={55}, DOI={<a href="https://doi.org/10.1109/TIT.2009.2018224">10.1109/TIT.2009.2018224</a>},
    number={6}, journal={IEEE Trans.\ Inform.\ Theory}, author={Tong, Jun and Ping,
    Li and Ma, Xiao}, year={2009}, pages={2562–2576} }'
  chicago: 'Tong, Jun, Li Ping, and Xiao Ma. “Superposition Coded Modulation with
    Peak-Power Limitation.” <i>IEEE Trans.\ Inform.\ Theory</i> 55, no. 6 (2009):
    2562–2576. <a href="https://doi.org/10.1109/TIT.2009.2018224">https://doi.org/10.1109/TIT.2009.2018224</a>.'
  ieee: 'J. Tong, L. Ping, and X. Ma, “Superposition coded modulation with peak-power
    limitation,” <i>IEEE Trans.\ Inform.\ Theory</i>, vol. 55, no. 6, pp. 2562–2576,
    2009, doi: <a href="https://doi.org/10.1109/TIT.2009.2018224">10.1109/TIT.2009.2018224</a>.'
  mla: Tong, Jun, et al. “Superposition Coded Modulation with Peak-Power Limitation.”
    <i>IEEE Trans.\ Inform.\ Theory</i>, vol. 55, no. 6, 2009, pp. 2562–2576, doi:<a
    href="https://doi.org/10.1109/TIT.2009.2018224">10.1109/TIT.2009.2018224</a>.
  short: J. Tong, L. Ping, X. Ma, IEEE Trans.\ Inform.\ Theory 55 (2009) 2562–2576.
date_created: 2023-01-30T11:52:02Z
date_updated: 2023-01-30T11:55:38Z
department:
- _id: '263'
doi: 10.1109/TIT.2009.2018224
intvolume: '        55'
issue: '6'
page: 2562–2576
publication: IEEE Trans.\ Inform.\ Theory
status: public
title: Superposition coded modulation with peak-power limitation
type: journal_article
user_id: '43497'
volume: 55
year: '2009'
...
---
_id: '40852'
author:
- first_name: D.
  full_name: Ramírez, D.
  last_name: Ramírez
- first_name: J.
  full_name: Vía, J.
  last_name: Vía
- first_name: I.
  full_name: Santamaría, I.
  last_name: Santamaría
citation:
  ama: 'Ramírez D, Vía J, Santamaría I. Coherent Fusion of Information for Optimal
    Detection in Sensor Networks. In: <i>Proc.\ IEEE Work.\ Stat.\ Signal Process.</i>
    ; 2009. doi:<a href="https://doi.org/10.1109/SSP.2009.5278473">10.1109/SSP.2009.5278473</a>'
  apa: Ramírez, D., Vía, J., &#38; Santamaría, I. (2009). Coherent Fusion of Information
    for Optimal Detection in Sensor Networks. <i>Proc.\ IEEE Work.\ Stat.\ Signal
    Process.</i> <a href="https://doi.org/10.1109/SSP.2009.5278473">https://doi.org/10.1109/SSP.2009.5278473</a>
  bibtex: '@inproceedings{Ramírez_Vía_Santamaría_2009, place={Cardiff, UK}, title={Coherent
    Fusion of Information for Optimal Detection in Sensor Networks}, DOI={<a href="https://doi.org/10.1109/SSP.2009.5278473">10.1109/SSP.2009.5278473</a>},
    booktitle={Proc.\ IEEE Work.\ Stat.\ Signal Process.}, author={Ramírez, D. and
    Vía, J. and Santamaría, I.}, year={2009} }'
  chicago: Ramírez, D., J. Vía, and I. Santamaría. “Coherent Fusion of Information
    for Optimal Detection in Sensor Networks.” In <i>Proc.\ IEEE Work.\ Stat.\ Signal
    Process.</i> Cardiff, UK, 2009. <a href="https://doi.org/10.1109/SSP.2009.5278473">https://doi.org/10.1109/SSP.2009.5278473</a>.
  ieee: 'D. Ramírez, J. Vía, and I. Santamaría, “Coherent Fusion of Information for
    Optimal Detection in Sensor Networks,” 2009, doi: <a href="https://doi.org/10.1109/SSP.2009.5278473">10.1109/SSP.2009.5278473</a>.'
  mla: Ramírez, D., et al. “Coherent Fusion of Information for Optimal Detection in
    Sensor Networks.” <i>Proc.\ IEEE Work.\ Stat.\ Signal Process.</i>, 2009, doi:<a
    href="https://doi.org/10.1109/SSP.2009.5278473">10.1109/SSP.2009.5278473</a>.
  short: 'D. Ramírez, J. Vía, I. Santamaría, in: Proc.\ IEEE Work.\ Stat.\ Signal
    Process., Cardiff, UK, 2009.'
date_created: 2023-01-30T11:52:02Z
date_updated: 2023-01-30T11:55:35Z
department:
- _id: '263'
doi: 10.1109/SSP.2009.5278473
place: Cardiff, UK
publication: Proc.\ IEEE Work.\ Stat.\ Signal Process.
status: public
title: Coherent Fusion of Information for Optimal Detection in Sensor Networks
type: conference
user_id: '43497'
year: '2009'
...
---
_id: '40853'
author:
- first_name: D.
  full_name: Ramírez, D.
  last_name: Ramírez
- first_name: J.
  full_name: Vía, J.
  last_name: Vía
- first_name: I.
  full_name: Santamaría, I.
  last_name: Santamaría
- first_name: P.
  full_name: Crespo, P.
  last_name: Crespo
citation:
  ama: 'Ramírez D, Vía J, Santamaría I, Crespo P. Entropy and Kullback-Leibler divergence
    estimation based on Szegö’s Theorem. In: <i>Proc.\ Eur.\ Signal Process.\ Conf.</i>
    ; 2009.'
  apa: Ramírez, D., Vía, J., Santamaría, I., &#38; Crespo, P. (2009). Entropy and
    Kullback-Leibler divergence estimation based on Szegö’s Theorem. <i>Proc.\ Eur.\
    Signal Process.\ Conf.</i>
  bibtex: '@inproceedings{Ramírez_Vía_Santamaría_Crespo_2009, place={Glasgow, Scotland},
    title={Entropy and Kullback-Leibler divergence estimation based on Szegö’s Theorem},
    booktitle={Proc.\ Eur.\ Signal Process.\ Conf.}, author={Ramírez, D. and Vía,
    J. and Santamaría, I. and Crespo, P.}, year={2009} }'
  chicago: Ramírez, D., J. Vía, I. Santamaría, and P. Crespo. “Entropy and Kullback-Leibler
    Divergence Estimation Based on Szegö’s Theorem.” In <i>Proc.\ Eur.\ Signal Process.\
    Conf.</i> Glasgow, Scotland, 2009.
  ieee: D. Ramírez, J. Vía, I. Santamaría, and P. Crespo, “Entropy and Kullback-Leibler
    divergence estimation based on Szegö’s Theorem,” 2009.
  mla: Ramírez, D., et al. “Entropy and Kullback-Leibler Divergence Estimation Based
    on Szegö’s Theorem.” <i>Proc.\ Eur.\ Signal Process.\ Conf.</i>, 2009.
  short: 'D. Ramírez, J. Vía, I. Santamaría, P. Crespo, in: Proc.\ Eur.\ Signal Process.\
    Conf., Glasgow, Scotland, 2009.'
date_created: 2023-01-30T11:52:02Z
date_updated: 2023-01-30T11:55:33Z
department:
- _id: '263'
place: Glasgow, Scotland
publication: Proc.\ Eur.\ Signal Process.\ Conf.
status: public
title: Entropy and Kullback-Leibler divergence estimation based on Szegö’s Theorem
type: conference
user_id: '43497'
year: '2009'
...
---
_id: '40855'
author:
- first_name: Patrik
  full_name: Wahlberg, Patrik
  last_name: Wahlberg
- first_name: Peter J.
  full_name: Schreier, Peter J.
  last_name: Schreier
citation:
  ama: 'Wahlberg P, Schreier PJ. The Wiener filter for locally stationary stochastic
    processes is rarely locally stationary. In: <i>Proc. 17th\ European Signal Process.\
    Conf.</i> ; 2009:2465–2469.'
  apa: Wahlberg, P., &#38; Schreier, P. J. (2009). The Wiener filter for locally stationary
    stochastic processes is rarely locally stationary. <i>Proc. 17th\ European Signal
    Process.\ Conf.</i>, 2465–2469.
  bibtex: '@inproceedings{Wahlberg_Schreier_2009, title={The Wiener filter for locally
    stationary stochastic processes is rarely locally stationary}, booktitle={Proc.
    17th\ European Signal Process.\ Conf.}, author={Wahlberg, Patrik and Schreier,
    Peter J.}, year={2009}, pages={2465–2469} }'
  chicago: Wahlberg, Patrik, and Peter J. Schreier. “The Wiener Filter for Locally
    Stationary Stochastic Processes Is Rarely Locally Stationary.” In <i>Proc. 17th\
    European Signal Process.\ Conf.</i>, 2465–2469, 2009.
  ieee: P. Wahlberg and P. J. Schreier, “The Wiener filter for locally stationary
    stochastic processes is rarely locally stationary,” in <i>Proc. 17th\ European
    Signal Process.\ Conf.</i>, 2009, pp. 2465–2469.
  mla: Wahlberg, Patrik, and Peter J. Schreier. “The Wiener Filter for Locally Stationary
    Stochastic Processes Is Rarely Locally Stationary.” <i>Proc. 17th\ European Signal
    Process.\ Conf.</i>, 2009, pp. 2465–2469.
  short: 'P. Wahlberg, P.J. Schreier, in: Proc. 17th\ European Signal Process.\ Conf.,
    2009, pp. 2465–2469.'
date_created: 2023-01-30T11:52:02Z
date_updated: 2023-01-30T11:55:30Z
department:
- _id: '263'
page: 2465–2469
publication: Proc. 17th\ European Signal Process.\ Conf.
status: public
title: The Wiener filter for locally stationary stochastic processes is rarely locally
  stationary
type: conference
user_id: '43497'
year: '2009'
...
---
_id: '40868'
abstract:
- lang: eng
  text: Recently, a generalization of the magnitude squared coherence (MSC) spectrum
    for more than two random processes has been proposed. The generalized MSC (GMSC)
    spectrum definition, which is based on the largest eigenvalue of a matrix containing
    all the pairwise complex coherence spectra, provides a frequency-dependent measure
    of the linear relationship among several stationary random processes. Moreover,
    it can be easily estimated by solving a generalized eigenvalue problem. In this
    paper we apply the GMSC spectrum for detecting the presence of a common signal
    from a set of linearly distorted and noisy observations. Specifically, the new
    statistic for the multiple-channel detection problem is the integral of the square
    root of the GMSC, which can be estimated as the sum of the $P$ largest generalized
    canonical correlations (typically $P=1$ is enough in practice). Unlike previous
    approaches, the new statistic implicitly takes into account the spectral characteristics
    of the signal to be detected (e.g., its bandwidth). Finally, the performance of
    the proposed detector is compared in terms of its receiver operating characteristic
    (ROC) curve with the generalized coherence (GC) showing a clear improvement in
    most scenarios.
author:
- first_name: D.
  full_name: Ramírez, D.
  last_name: Ramírez
- first_name: J.
  full_name: Vía, J.
  last_name: Vía
- first_name: I.
  full_name: Santamaría, I.
  last_name: Santamaría
citation:
  ama: 'Ramírez D, Vía J, Santamaría I. Multiple-Channel Signal Detection using the
    Generalized Coherence spectrum. In: <i>Proc.\ IAPR Work. Cognitive Information
    Process.</i> ; 2008.'
  apa: Ramírez, D., Vía, J., &#38; Santamaría, I. (2008). Multiple-Channel Signal
    Detection using the Generalized Coherence spectrum. <i>Proc.\ IAPR Work. Cognitive
    Information Process.</i>
  bibtex: '@inproceedings{Ramírez_Vía_Santamaría_2008, place={Santorini, Greece},
    title={Multiple-Channel Signal Detection using the Generalized Coherence spectrum},
    booktitle={Proc.\ IAPR Work. Cognitive Information Process.}, author={Ramírez,
    D. and Vía, J. and Santamaría, I.}, year={2008} }'
  chicago: Ramírez, D., J. Vía, and I. Santamaría. “Multiple-Channel Signal Detection
    Using the Generalized Coherence Spectrum.” In <i>Proc.\ IAPR Work. Cognitive Information
    Process.</i> Santorini, Greece, 2008.
  ieee: D. Ramírez, J. Vía, and I. Santamaría, “Multiple-Channel Signal Detection
    using the Generalized Coherence spectrum,” 2008.
  mla: Ramírez, D., et al. “Multiple-Channel Signal Detection Using the Generalized
    Coherence Spectrum.” <i>Proc.\ IAPR Work. Cognitive Information Process.</i>,
    2008.
  short: 'D. Ramírez, J. Vía, I. Santamaría, in: Proc.\ IAPR Work. Cognitive Information
    Process., Santorini, Greece, 2008.'
date_created: 2023-01-30T11:52:04Z
date_updated: 2023-01-30T11:54:35Z
department:
- _id: '263'
place: Santorini, Greece
publication: Proc.\ IAPR Work. Cognitive Information Process.
status: public
title: Multiple-Channel Signal Detection using the Generalized Coherence spectrum
type: conference
user_id: '43497'
year: '2008'
...
---
_id: '40866'
abstract:
- lang: eng
  text: This paper is concerned with orthogonal frequencydivision multiplexing interleave-division
    multiple-access (OFDMIDMA) systems over frequency-selective fading channels. Deliberate
    clipping is applied to reduce the peak-to-average power ratio (PAPR) of each user’s
    transmitted signal. An iterative multiuser detection (MUD) technique is developed
    to recover the performance loss due to clipping. A semi-analytical signal-to-noise
    ratio (SNR) evolution technique is proposed, which can provide quick and accurate
    prediction of the iterative MUD performance. Numerical results show that the performance
    of OFDM-IDMA is not sensitive to the frequency selectivity of channels, and OFDM-IDMA
    is more power-efficient than other alternative multi-carrier transmission techniques
author:
- first_name: Jun
  full_name: Tong, Jun
  last_name: Tong
- first_name: Qinghua
  full_name: Guo, Qinghua
  last_name: Guo
- first_name: Li
  full_name: Ping, Li
  last_name: Ping
citation:
  ama: 'Tong J, Guo Q, Ping L. Performance analysis of OFDM-IDMA systems with peak-power
    limitation. In: <i>IEEE 10th\ Int.\ Symp.\ Spread Spectrum Techn.\ &#38; Appl.</i>
    ; 2008:555–559. doi:<a href="https://doi.org/10.1109/ISSSTA.2008.109">10.1109/ISSSTA.2008.109</a>'
  apa: Tong, J., Guo, Q., &#38; Ping, L. (2008). Performance analysis of OFDM-IDMA
    systems with peak-power limitation. <i>IEEE 10th\ Int.\ Symp.\ Spread Spectrum
    Techn.\ &#38; Appl.</i>, 555–559. <a href="https://doi.org/10.1109/ISSSTA.2008.109">https://doi.org/10.1109/ISSSTA.2008.109</a>
  bibtex: '@inproceedings{Tong_Guo_Ping_2008, title={Performance analysis of OFDM-IDMA
    systems with peak-power limitation}, DOI={<a href="https://doi.org/10.1109/ISSSTA.2008.109">10.1109/ISSSTA.2008.109</a>},
    booktitle={IEEE 10th\ Int.\ Symp.\ Spread Spectrum Techn.\ &#38; Appl.}, author={Tong,
    Jun and Guo, Qinghua and Ping, Li}, year={2008}, pages={555–559} }'
  chicago: Tong, Jun, Qinghua Guo, and Li Ping. “Performance Analysis of OFDM-IDMA
    Systems with Peak-Power Limitation.” In <i>IEEE 10th\ Int.\ Symp.\ Spread Spectrum
    Techn.\ &#38; Appl.</i>, 555–559, 2008. <a href="https://doi.org/10.1109/ISSSTA.2008.109">https://doi.org/10.1109/ISSSTA.2008.109</a>.
  ieee: 'J. Tong, Q. Guo, and L. Ping, “Performance analysis of OFDM-IDMA systems
    with peak-power limitation,” in <i>IEEE 10th\ Int.\ Symp.\ Spread Spectrum Techn.\
    &#38; Appl.</i>, 2008, pp. 555–559, doi: <a href="https://doi.org/10.1109/ISSSTA.2008.109">10.1109/ISSSTA.2008.109</a>.'
  mla: Tong, Jun, et al. “Performance Analysis of OFDM-IDMA Systems with Peak-Power
    Limitation.” <i>IEEE 10th\ Int.\ Symp.\ Spread Spectrum Techn.\ &#38; Appl.</i>,
    2008, pp. 555–559, doi:<a href="https://doi.org/10.1109/ISSSTA.2008.109">10.1109/ISSSTA.2008.109</a>.
  short: 'J. Tong, Q. Guo, L. Ping, in: IEEE 10th\ Int.\ Symp.\ Spread Spectrum Techn.\
    &#38; Appl., 2008, pp. 555–559.'
date_created: 2023-01-30T11:52:04Z
date_updated: 2023-01-30T11:54:33Z
department:
- _id: '263'
doi: 10.1109/ISSSTA.2008.109
page: 555–559
publication: IEEE 10th\ Int.\ Symp.\ Spread Spectrum Techn.\ & Appl.
status: public
title: Performance analysis of OFDM-IDMA systems with peak-power limitation
type: conference
user_id: '43497'
year: '2008'
...
---
_id: '40858'
abstract:
- lang: eng
  text: In this paper, we study the iterative detection problem for a coded system
    with multi-ary modulation. We show that, with iterative linear minimum-mean-square-error
    (LMMSE) detection, superposition coded modulation (SCM) can provide performance
    superior to that with other traditional signaling schemes used in trellis coded
    modulation (TCM) and bit-interleaved coded modulation (BICM). This finding provides
    a useful guideline for system design considering inter-symbol interference (ISI)
    and other forms of interference. Simulation results are provided to illustrate
    the efficiency of the iterative LMMSE detection with different signaling schemes.
author:
- first_name: Li
  full_name: Ping, Li
  last_name: Ping
- first_name: Jun
  full_name: Tong, Jun
  last_name: Tong
- first_name: Xiaojun
  full_name: Yuan, Xiaojun
  last_name: Yuan
- first_name: Qinghua
  full_name: Guo, Qinghua
  last_name: Guo
citation:
  ama: 'Ping L, Tong J, Yuan X, Guo Q. Impact of signaling schemes on iterative linear
    minimum-mean-square-error detection. In: <i>Proc.\ IEEE Global Telecomm.\ Conf.</i>
    ; 2008:1–5. doi:<a href="https://doi.org/10.1109/GLOCOM.2008.ECP.665">10.1109/GLOCOM.2008.ECP.665</a>'
  apa: Ping, L., Tong, J., Yuan, X., &#38; Guo, Q. (2008). Impact of signaling schemes
    on iterative linear minimum-mean-square-error detection. <i>Proc.\ IEEE Global
    Telecomm.\ Conf.</i>, 1–5. <a href="https://doi.org/10.1109/GLOCOM.2008.ECP.665">https://doi.org/10.1109/GLOCOM.2008.ECP.665</a>
  bibtex: '@inproceedings{Ping_Tong_Yuan_Guo_2008, title={Impact of signaling schemes
    on iterative linear minimum-mean-square-error detection}, DOI={<a href="https://doi.org/10.1109/GLOCOM.2008.ECP.665">10.1109/GLOCOM.2008.ECP.665</a>},
    booktitle={Proc.\ IEEE Global Telecomm.\ Conf.}, author={Ping, Li and Tong, Jun
    and Yuan, Xiaojun and Guo, Qinghua}, year={2008}, pages={1–5} }'
  chicago: Ping, Li, Jun Tong, Xiaojun Yuan, and Qinghua Guo. “Impact of Signaling
    Schemes on Iterative Linear Minimum-Mean-Square-Error Detection.” In <i>Proc.\
    IEEE Global Telecomm.\ Conf.</i>, 1–5, 2008. <a href="https://doi.org/10.1109/GLOCOM.2008.ECP.665">https://doi.org/10.1109/GLOCOM.2008.ECP.665</a>.
  ieee: 'L. Ping, J. Tong, X. Yuan, and Q. Guo, “Impact of signaling schemes on iterative
    linear minimum-mean-square-error detection,” in <i>Proc.\ IEEE Global Telecomm.\
    Conf.</i>, 2008, pp. 1–5, doi: <a href="https://doi.org/10.1109/GLOCOM.2008.ECP.665">10.1109/GLOCOM.2008.ECP.665</a>.'
  mla: Ping, Li, et al. “Impact of Signaling Schemes on Iterative Linear Minimum-Mean-Square-Error
    Detection.” <i>Proc.\ IEEE Global Telecomm.\ Conf.</i>, 2008, pp. 1–5, doi:<a
    href="https://doi.org/10.1109/GLOCOM.2008.ECP.665">10.1109/GLOCOM.2008.ECP.665</a>.
  short: 'L. Ping, J. Tong, X. Yuan, Q. Guo, in: Proc.\ IEEE Global Telecomm.\ Conf.,
    2008, pp. 1–5.'
date_created: 2023-01-30T11:52:03Z
date_updated: 2023-01-30T11:55:49Z
department:
- _id: '263'
doi: 10.1109/GLOCOM.2008.ECP.665
page: 1–5
publication: Proc.\ IEEE Global Telecomm.\ Conf.
status: public
title: Impact of signaling schemes on iterative linear minimum-mean-square-error detection
type: conference
user_id: '43497'
year: '2008'
...
---
_id: '40859'
abstract:
- lang: eng
  text: A complex random vector is called improper if it is correlated with its complex
    conjugate. We introduce a measure for the degree of impropriety, which is a function
    of the canonical correlations between the vector and its complex conjugate (sometimes
    called the circularity spectrum). This measure is invariant under linear transformation,
    and it relates the entropy of an improper Gaussian random vector to its corresponding
    proper version. For vectors with given spectrum, we present upper and lower bounds
    on the attainable degree of impropriety, in terms of the eigenvalues of the augmented
    covariance matrix.
author:
- first_name: Peter J.
  full_name: Schreier, Peter J.
  last_name: Schreier
citation:
  ama: Schreier PJ. Bounds on the Degree of Impropriety of Complex Random Vectors.
    <i>IEEE Signal Process\ Lett</i>. 2008;15:190–193. doi:<a href="https://doi.org/10.1109/LSP.2007.913134">10.1109/LSP.2007.913134</a>
  apa: Schreier, P. J. (2008). Bounds on the Degree of Impropriety of Complex Random
    Vectors. <i>IEEE Signal Process.\ Lett.</i>, <i>15</i>, 190–193. <a href="https://doi.org/10.1109/LSP.2007.913134">https://doi.org/10.1109/LSP.2007.913134</a>
  bibtex: '@article{Schreier_2008, title={Bounds on the Degree of Impropriety of Complex
    Random Vectors}, volume={15}, DOI={<a href="https://doi.org/10.1109/LSP.2007.913134">10.1109/LSP.2007.913134</a>},
    journal={IEEE Signal Process.\ Lett.}, author={Schreier, Peter J.}, year={2008},
    pages={190–193} }'
  chicago: 'Schreier, Peter J. “Bounds on the Degree of Impropriety of Complex Random
    Vectors.” <i>IEEE Signal Process.\ Lett.</i> 15 (2008): 190–193. <a href="https://doi.org/10.1109/LSP.2007.913134">https://doi.org/10.1109/LSP.2007.913134</a>.'
  ieee: 'P. J. Schreier, “Bounds on the Degree of Impropriety of Complex Random Vectors,”
    <i>IEEE Signal Process.\ Lett.</i>, vol. 15, pp. 190–193, 2008, doi: <a href="https://doi.org/10.1109/LSP.2007.913134">10.1109/LSP.2007.913134</a>.'
  mla: Schreier, Peter J. “Bounds on the Degree of Impropriety of Complex Random Vectors.”
    <i>IEEE Signal Process.\ Lett.</i>, vol. 15, 2008, pp. 190–193, doi:<a href="https://doi.org/10.1109/LSP.2007.913134">10.1109/LSP.2007.913134</a>.
  short: P.J. Schreier, IEEE Signal Process.\ Lett. 15 (2008) 190–193.
date_created: 2023-01-30T11:52:03Z
date_updated: 2023-01-30T11:55:47Z
department:
- _id: '263'
doi: 10.1109/LSP.2007.913134
intvolume: '        15'
page: 190–193
publication: IEEE Signal Process.\ Lett.
status: public
title: Bounds on the Degree of Impropriety of Complex Random Vectors
type: journal_article
user_id: '43497'
volume: 15
year: '2008'
...
---
_id: '40867'
abstract:
- lang: eng
  text: We study linear minimum mean square error (LMMSE) filters for estimating a
    nonstationary second-order continuous-time stochastic process from a noisy observation.
    The equation for the optimal filter is treated in the Weyl symbol domain, and
    the involved Weyl symbols are assumed to belong to certain modulation spaces.
    By discretizing this equation using a Gabor frame we transform it into a matrix
    equation and obtain a formula for the filter by matrix inversion. The inverse
    matrix has off-diagonal decay at a rate that increases the more underspread the
    process is.
author:
- first_name: Patrik
  full_name: Wahlberg, Patrik
  last_name: Wahlberg
- first_name: Peter J.
  full_name: Schreier, Peter J.
  last_name: Schreier
citation:
  ama: 'Wahlberg P, Schreier PJ. A time-frequency formula for LMMSE filters for nonstationary
    underspread continuous-time stochastic processes. In: <i>Proc. 16th\ European
    Signal Process.\ Conf.</i> ; 2008.'
  apa: Wahlberg, P., &#38; Schreier, P. J. (2008). A time-frequency formula for LMMSE
    filters for nonstationary underspread continuous-time stochastic processes. <i>Proc.
    16th\ European Signal Process.\ Conf.</i>
  bibtex: '@inproceedings{Wahlberg_Schreier_2008, title={A time-frequency formula
    for LMMSE filters for nonstationary underspread continuous-time stochastic processes},
    booktitle={Proc. 16th\ European Signal Process.\ Conf.}, author={Wahlberg, Patrik
    and Schreier, Peter J.}, year={2008} }'
  chicago: Wahlberg, Patrik, and Peter J. Schreier. “A Time-Frequency Formula for
    LMMSE Filters for Nonstationary Underspread Continuous-Time Stochastic Processes.”
    In <i>Proc. 16th\ European Signal Process.\ Conf.</i>, 2008.
  ieee: P. Wahlberg and P. J. Schreier, “A time-frequency formula for LMMSE filters
    for nonstationary underspread continuous-time stochastic processes,” 2008.
  mla: Wahlberg, Patrik, and Peter J. Schreier. “A Time-Frequency Formula for LMMSE
    Filters for Nonstationary Underspread Continuous-Time Stochastic Processes.” <i>Proc.
    16th\ European Signal Process.\ Conf.</i>, 2008.
  short: 'P. Wahlberg, P.J. Schreier, in: Proc. 16th\ European Signal Process.\ Conf.,
    2008.'
date_created: 2023-01-30T11:52:04Z
date_updated: 2023-01-30T11:56:10Z
department:
- _id: '263'
publication: Proc. 16th\ European Signal Process.\ Conf.
status: public
title: A time-frequency formula for LMMSE filters for nonstationary underspread continuous-time
  stochastic processes
type: conference
user_id: '43497'
year: '2008'
...
---
_id: '40865'
abstract:
- lang: eng
  text: 'In this paper we study space-time coding schemes for a novel MIMO transceiver
    which performs adaptive signal combining in radio-frequency (RF). The limitations
    of the RF circuitry make necessary to develop specific designs for this architecture.
    For instance, the space and time encoders must operate separately (the former
    works in the RF domain and the latter works in baseband), and at different time
    scales: the spatial encoder or RF beamformer must remain fixed dur- ing the transmission
    of a probably large number of symbols, whereas the time-encoder can work at the
    symbol rate. We show in the paper that although the multiplexing gain of the system
    is limited to one, we are still able to achieve the full spatial diversity of
    the MIMO channel as well as to increase the received signal-to-noise ratio through
    array gain. Specifically, when perfect channel state information (CSI) is available
    only at the receiver we propose to use a scheme referred to as orthogonal beam
    division multiplexing (OBDM). With this scheme the symbols are time-precoded with
    a unitary discrete Fourier transform (DFT) matrix, then they are successively
    transmitted through orthogonal direc- tions and, finally, we use a receiver comprising
    maximal ra- tio combining (MRC) followed by a minimum mean-square error (MMSE)
    decoder. The performance of the proposed techniques in terms of outage capacity
    and bit error rate is illustrated by means of several simulations examples.'
author:
- first_name: I.
  full_name: Santamaría, I.
  last_name: Santamaría
- first_name: V.
  full_name: Elvira, V.
  last_name: Elvira
- first_name: J.
  full_name: Vía, J.
  last_name: Vía
- first_name: D.
  full_name: Ramírez, D.
  last_name: Ramírez
- first_name: J.
  full_name: Pérez, J.
  last_name: Pérez
- first_name: J.
  full_name: Ibáñez, J.
  last_name: Ibáñez
- first_name: R.
  full_name: Eickhoff, R.
  last_name: Eickhoff
- first_name: F.
  full_name: Ellinger, F.
  last_name: Ellinger
citation:
  ama: 'Santamaría I, Elvira V, Vía J, et al. Optimal MIMO transmission schemes with
    adaptive antenna combining in the RF path. In: <i>Proc.\ Eur.\ Signal Process.\
    Conf.</i> ; 2008.'
  apa: Santamaría, I., Elvira, V., Vía, J., Ramírez, D., Pérez, J., Ibáñez, J., Eickhoff,
    R., &#38; Ellinger, F. (2008). Optimal MIMO transmission schemes with adaptive
    antenna combining in the RF path. <i>Proc.\ Eur.\ Signal Process.\ Conf.</i>
  bibtex: '@inproceedings{Santamaría_Elvira_Vía_Ramírez_Pérez_Ibáñez_Eickhoff_Ellinger_2008,
    place={Lausanne, Switzerland}, title={Optimal MIMO transmission schemes with adaptive
    antenna combining in the RF path}, booktitle={Proc.\ Eur.\ Signal Process.\ Conf.},
    author={Santamaría, I. and Elvira, V. and Vía, J. and Ramírez, D. and Pérez, J.
    and Ibáñez, J. and Eickhoff, R. and Ellinger, F.}, year={2008} }'
  chicago: Santamaría, I., V. Elvira, J. Vía, D. Ramírez, J. Pérez, J. Ibáñez, R.
    Eickhoff, and F. Ellinger. “Optimal MIMO Transmission Schemes with Adaptive Antenna
    Combining in the RF Path.” In <i>Proc.\ Eur.\ Signal Process.\ Conf.</i> Lausanne,
    Switzerland, 2008.
  ieee: I. Santamaría <i>et al.</i>, “Optimal MIMO transmission schemes with adaptive
    antenna combining in the RF path,” 2008.
  mla: Santamaría, I., et al. “Optimal MIMO Transmission Schemes with Adaptive Antenna
    Combining in the RF Path.” <i>Proc.\ Eur.\ Signal Process.\ Conf.</i>, 2008.
  short: 'I. Santamaría, V. Elvira, J. Vía, D. Ramírez, J. Pérez, J. Ibáñez, R. Eickhoff,
    F. Ellinger, in: Proc.\ Eur.\ Signal Process.\ Conf., Lausanne, Switzerland, 2008.'
date_created: 2023-01-30T11:52:04Z
date_updated: 2023-01-30T11:54:37Z
department:
- _id: '263'
place: Lausanne, Switzerland
publication: Proc.\ Eur.\ Signal Process.\ Conf.
status: public
title: Optimal MIMO transmission schemes with adaptive antenna combining in the RF
  path
type: conference
user_id: '43497'
year: '2008'
...
---
_id: '40872'
abstract:
- lang: eng
  text: We study continuous-time multidimensional wide- sense stationary (WSS) and
    (almost) cyclostationary processes in the frequency domain. Under the assumption
    that the correlation function is uniformly continuous, we prove the existence
    of a unique sequence of spectral measures, which coincide with the restrictions
    to certain subdiagonals of the spectral measure in the strongly harmonizable case.
    Moreover, the off-diagonal measures are absolutely continuous with respect to
    the diagonal measure. As a consequence, for strongly harmonizable scalar improper
    almost cyclostationary processes, we obtain representation formulas for the components
    of the complementary spectral measure and the off-diagonal components of the spectral
    measure, in terms of the diagonal component of the spectral measure. We apply
    these results to analytic signals, which produces sufficient conditions for propriety
    for almost cyclostationary analytic signals.
author:
- first_name: Patrik
  full_name: Wahlberg, Patrik
  last_name: Wahlberg
- first_name: Peter J.
  full_name: Schreier, Peter J.
  last_name: Schreier
citation:
  ama: Wahlberg P, Schreier PJ. Spectral Relations for Multidimensional Complex Improper
    Stationary and (Almost) Cyclostationary Processes. <i>IEEE Trans\ Inform\ Theory</i>.
    2008;54(4):1670–1682. doi:<a href="https://doi.org/10.1109/TIT.2008.917626">10.1109/TIT.2008.917626</a>
  apa: Wahlberg, P., &#38; Schreier, P. J. (2008). Spectral Relations for Multidimensional
    Complex Improper Stationary and (Almost) Cyclostationary Processes. <i>IEEE Trans.\
    Inform.\ Theory</i>, <i>54</i>(4), 1670–1682. <a href="https://doi.org/10.1109/TIT.2008.917626">https://doi.org/10.1109/TIT.2008.917626</a>
  bibtex: '@article{Wahlberg_Schreier_2008, title={Spectral Relations for Multidimensional
    Complex Improper Stationary and (Almost) Cyclostationary Processes}, volume={54},
    DOI={<a href="https://doi.org/10.1109/TIT.2008.917626">10.1109/TIT.2008.917626</a>},
    number={4}, journal={IEEE Trans.\ Inform.\ Theory}, author={Wahlberg, Patrik and
    Schreier, Peter J.}, year={2008}, pages={1670–1682} }'
  chicago: 'Wahlberg, Patrik, and Peter J. Schreier. “Spectral Relations for Multidimensional
    Complex Improper Stationary and (Almost) Cyclostationary Processes.” <i>IEEE Trans.\
    Inform.\ Theory</i> 54, no. 4 (2008): 1670–1682. <a href="https://doi.org/10.1109/TIT.2008.917626">https://doi.org/10.1109/TIT.2008.917626</a>.'
  ieee: 'P. Wahlberg and P. J. Schreier, “Spectral Relations for Multidimensional
    Complex Improper Stationary and (Almost) Cyclostationary Processes,” <i>IEEE Trans.\
    Inform.\ Theory</i>, vol. 54, no. 4, pp. 1670–1682, 2008, doi: <a href="https://doi.org/10.1109/TIT.2008.917626">10.1109/TIT.2008.917626</a>.'
  mla: Wahlberg, Patrik, and Peter J. Schreier. “Spectral Relations for Multidimensional
    Complex Improper Stationary and (Almost) Cyclostationary Processes.” <i>IEEE Trans.\
    Inform.\ Theory</i>, vol. 54, no. 4, 2008, pp. 1670–1682, doi:<a href="https://doi.org/10.1109/TIT.2008.917626">10.1109/TIT.2008.917626</a>.
  short: P. Wahlberg, P.J. Schreier, IEEE Trans.\ Inform.\ Theory 54 (2008) 1670–1682.
date_created: 2023-01-30T11:52:05Z
date_updated: 2023-01-30T11:54:54Z
department:
- _id: '263'
doi: 10.1109/TIT.2008.917626
intvolume: '        54'
issue: '4'
page: 1670–1682
publication: IEEE Trans.\ Inform.\ Theory
status: public
title: Spectral Relations for Multidimensional Complex Improper Stationary and (Almost)
  Cyclostationary Processes
type: journal_article
user_id: '43497'
volume: 54
year: '2008'
...
---
_id: '40860'
abstract:
- lang: eng
  text: This paper deals with the analysis and design of orthogonal frequency-division
    multiplexing interleave-division multiple-access (OFDM-IDMA). We begin with the
    analysis of the information-theoretical advantages of non-orthogonal transmission
    schemes in fading multiple-access channels. We then turn attention to practical
    design issues. A signal-to-noise ratio (SNR) evolution technique is developed
    to predict the bit-error-rate (BER) performance of OFDM-IDMA. This technique is
    applied to system design and optimisation. Through proper power allocation, OFDM-IDMA
    can achieve the multi-user gain (MUG) predicted by information-theoretical analysis.
    It is also an attractive option in compensating for the clipping effect caused
    by peak-power limitation. Numerical examples show that OFDM-IDMA can (i) alleviate
    the PAPR problem commonly suffered by OFDM-based schemes; (ii) deliver significant
    MUG compared with other orthogonal alternatives; (iii) provide robust communications
    in frequency-selective channels; and (iv) support high single-user throughput.
    Copyright {\copyright} 2008 John Wiley & Sons, Ltd.
author:
- first_name: Jun
  full_name: Tong, Jun
  last_name: Tong
- first_name: Qinghua
  full_name: Guo, Qinghua
  last_name: Guo
- first_name: Li
  full_name: Ping, Li
  last_name: Ping
citation:
  ama: Tong J, Guo Q, Ping L. Analysis and design of OFDM-IDMA systems. <i>European
    Trans\ Comm</i>. 2008;19(5):561–569. doi:<a href="https://doi.org/10.1002/ett.1304">10.1002/ett.1304</a>
  apa: Tong, J., Guo, Q., &#38; Ping, L. (2008). Analysis and design of OFDM-IDMA
    systems. <i>European Trans.\ Comm.</i>, <i>19</i>(5), 561–569. <a href="https://doi.org/10.1002/ett.1304">https://doi.org/10.1002/ett.1304</a>
  bibtex: '@article{Tong_Guo_Ping_2008, title={Analysis and design of OFDM-IDMA systems},
    volume={19}, DOI={<a href="https://doi.org/10.1002/ett.1304">10.1002/ett.1304</a>},
    number={5}, journal={European Trans.\ Comm.}, publisher={John Wiley &#38; Sons},
    author={Tong, Jun and Guo, Qinghua and Ping, Li}, year={2008}, pages={561–569}
    }'
  chicago: 'Tong, Jun, Qinghua Guo, and Li Ping. “Analysis and Design of OFDM-IDMA
    Systems.” <i>European Trans.\ Comm.</i> 19, no. 5 (2008): 561–569. <a href="https://doi.org/10.1002/ett.1304">https://doi.org/10.1002/ett.1304</a>.'
  ieee: 'J. Tong, Q. Guo, and L. Ping, “Analysis and design of OFDM-IDMA systems,”
    <i>European Trans.\ Comm.</i>, vol. 19, no. 5, pp. 561–569, 2008, doi: <a href="https://doi.org/10.1002/ett.1304">10.1002/ett.1304</a>.'
  mla: Tong, Jun, et al. “Analysis and Design of OFDM-IDMA Systems.” <i>European Trans.\
    Comm.</i>, vol. 19, no. 5, John Wiley &#38; Sons, 2008, pp. 561–569, doi:<a href="https://doi.org/10.1002/ett.1304">10.1002/ett.1304</a>.
  short: J. Tong, Q. Guo, L. Ping, European Trans.\ Comm. 19 (2008) 561–569.
date_created: 2023-01-30T11:52:03Z
date_updated: 2023-01-30T11:56:01Z
department:
- _id: '263'
doi: 10.1002/ett.1304
intvolume: '        19'
issue: '5'
page: 561–569
publication: European Trans.\ Comm.
publisher: John Wiley & Sons
status: public
title: Analysis and design of OFDM-IDMA systems
type: journal_article
user_id: '43497'
volume: 19
year: '2008'
...
---
_id: '40870'
abstract:
- lang: eng
  text: The assessment of multivariate association between two complex random vectors
    is considered. A number of correlation coefficients based on three popular correlation
    analysis techniques, namely canonical correlation analysis, multivariate linear
    regression, and partial least squares, are reviewed and connected to performance
    measures in signal processing and communications, such as mean-squared estimation
    error, mutual information, and signal-to-noise ratio (SNR). For complex data,
    there are three types of correlation coefficients, which account for rotational,
    reflectional, and total (i.e., rotational and reflectional) dependencies between
    two random vectors. These three types are defined and analyzed for different correlation
    coefficients, and a numerical example is given. It is often required to compare
    two complex random vectors in a lower-dimensional subspace. For the large class
    of increasing, Schur-convex correlation coefficients, it is shown that the low-rank
    approximations of two random vectors maximizing a particular correlation coefficient
    are determined only by the constraints imposed on the correlation analysis technique.
    In this context, the correlation spread is defined as a normalized measure of
    how much of the overall correlation is contained in a low-dimensional subspace.
author:
- first_name: Peter J.
  full_name: Schreier, Peter J.
  last_name: Schreier
citation:
  ama: Schreier PJ. A Unifying Discussion of Correlation Analysis for Complex Random
    Vectors. <i>{IEEE} {T}rans\ {S}ignal\ {P}rocess</i>. 2008;56(4):1327–1336. doi:<a
    href="https://doi.org/10.1109/TSP.2007.909054">10.1109/TSP.2007.909054</a>
  apa: Schreier, P. J. (2008). A Unifying Discussion of Correlation Analysis for Complex
    Random Vectors. <i>{IEEE} {T}rans.\ {S}ignal\ {P}rocess.</i>, <i>56</i>(4), 1327–1336.
    <a href="https://doi.org/10.1109/TSP.2007.909054">https://doi.org/10.1109/TSP.2007.909054</a>
  bibtex: '@article{Schreier_2008, title={A Unifying Discussion of Correlation Analysis
    for Complex Random Vectors}, volume={56}, DOI={<a href="https://doi.org/10.1109/TSP.2007.909054">10.1109/TSP.2007.909054</a>},
    number={4}, journal={{IEEE} {T}rans.\ {S}ignal\ {P}rocess.}, author={Schreier,
    Peter J.}, year={2008}, pages={1327–1336} }'
  chicago: 'Schreier, Peter J. “A Unifying Discussion of Correlation Analysis for
    Complex Random Vectors.” <i>{IEEE} {T}rans.\ {S}ignal\ {P}rocess.</i> 56, no.
    4 (2008): 1327–1336. <a href="https://doi.org/10.1109/TSP.2007.909054">https://doi.org/10.1109/TSP.2007.909054</a>.'
  ieee: 'P. J. Schreier, “A Unifying Discussion of Correlation Analysis for Complex
    Random Vectors,” <i>{IEEE} {T}rans.\ {S}ignal\ {P}rocess.</i>, vol. 56, no. 4,
    pp. 1327–1336, 2008, doi: <a href="https://doi.org/10.1109/TSP.2007.909054">10.1109/TSP.2007.909054</a>.'
  mla: Schreier, Peter J. “A Unifying Discussion of Correlation Analysis for Complex
    Random Vectors.” <i>{IEEE} {T}rans.\ {S}ignal\ {P}rocess.</i>, vol. 56, no. 4,
    2008, pp. 1327–1336, doi:<a href="https://doi.org/10.1109/TSP.2007.909054">10.1109/TSP.2007.909054</a>.
  short: P.J. Schreier, {IEEE} {T}rans.\ {S}ignal\ {P}rocess. 56 (2008) 1327–1336.
date_created: 2023-01-30T11:52:04Z
date_updated: 2023-01-30T11:56:07Z
department:
- _id: '263'
doi: 10.1109/TSP.2007.909054
intvolume: '        56'
issue: '4'
page: 1327–1336
publication: '{IEEE} {T}rans.\ {S}ignal\ {P}rocess.'
status: public
title: A Unifying Discussion of Correlation Analysis for Complex Random Vectors
type: journal_article
user_id: '43497'
volume: 56
year: '2008'
...
---
_id: '40864'
abstract:
- lang: eng
  text: We present a novel way of extending rotary-component and polarization analysis
    to nonstationary random signals. If a complex signal is resolved into counterclockwise
    and clockwise rotating phasors at one particular frequency only, it traces out
    an ellipse in the complex plane. Rotary-component analysis characterizes this
    ellipse in terms of its shape and orientation. Polarization analysis looks at
    the coherence between counterclockwise and clockwise rotating phasors and whether
    there is a preferred rotation direction of the ellipse (counterclockwise or clockwise).
    In the nonstationary case, we replace this ellipse with a time-dependent local
    ellipse that, at a given time instant, gives the best local approximation of the
    signal from a given frequency component. This local ellipse is then analyzed in
    terms of its shape, orientation, and degree of polarization. A time-frequency
    coherence measures how well the local ellipse approximates the signal. The ellipse
    parameters and the time-frequency coherence can be expressed in terms of the Rihaczek
    time-frequency distribution. Under coordinate rotation, the ellipse shape, the
    degree of polarization, and the time-frequency coherence are invariant, and the
    ellipse orientation is covariant. The methods presented in this paper provide
    an alternative to ellipse decompositions based on wavelet ridge analysis.
author:
- first_name: Peter J.
  full_name: Schreier, Peter J.
  last_name: Schreier
citation:
  ama: Schreier PJ. Polarization Ellipse Analysis of Nonstationary Random Signals.
    <i>{IEEE} {T}rans\ {S}ignal\ {P}rocess</i>. 2008;56(9):4330–4339. doi:<a href="https://doi.org/10.1109/TSP.2008.925961">10.1109/TSP.2008.925961</a>
  apa: Schreier, P. J. (2008). Polarization Ellipse Analysis of Nonstationary Random
    Signals. <i>{IEEE} {T}rans.\ {S}ignal\ {P}rocess.</i>, <i>56</i>(9), 4330–4339.
    <a href="https://doi.org/10.1109/TSP.2008.925961">https://doi.org/10.1109/TSP.2008.925961</a>
  bibtex: '@article{Schreier_2008, title={Polarization Ellipse Analysis of Nonstationary
    Random Signals}, volume={56}, DOI={<a href="https://doi.org/10.1109/TSP.2008.925961">10.1109/TSP.2008.925961</a>},
    number={9}, journal={{IEEE} {T}rans.\ {S}ignal\ {P}rocess.}, author={Schreier,
    Peter J.}, year={2008}, pages={4330–4339} }'
  chicago: 'Schreier, Peter J. “Polarization Ellipse Analysis of Nonstationary Random
    Signals.” <i>{IEEE} {T}rans.\ {S}ignal\ {P}rocess.</i> 56, no. 9 (2008): 4330–4339.
    <a href="https://doi.org/10.1109/TSP.2008.925961">https://doi.org/10.1109/TSP.2008.925961</a>.'
  ieee: 'P. J. Schreier, “Polarization Ellipse Analysis of Nonstationary Random Signals,”
    <i>{IEEE} {T}rans.\ {S}ignal\ {P}rocess.</i>, vol. 56, no. 9, pp. 4330–4339, 2008,
    doi: <a href="https://doi.org/10.1109/TSP.2008.925961">10.1109/TSP.2008.925961</a>.'
  mla: Schreier, Peter J. “Polarization Ellipse Analysis of Nonstationary Random Signals.”
    <i>{IEEE} {T}rans.\ {S}ignal\ {P}rocess.</i>, vol. 56, no. 9, 2008, pp. 4330–4339,
    doi:<a href="https://doi.org/10.1109/TSP.2008.925961">10.1109/TSP.2008.925961</a>.
  short: P.J. Schreier, {IEEE} {T}rans.\ {S}ignal\ {P}rocess. 56 (2008) 4330–4339.
date_created: 2023-01-30T11:52:03Z
date_updated: 2023-01-30T11:55:58Z
department:
- _id: '263'
doi: 10.1109/TSP.2008.925961
intvolume: '        56'
issue: '9'
page: 4330–4339
publication: '{IEEE} {T}rans.\ {S}ignal\ {P}rocess.'
status: public
title: Polarization Ellipse Analysis of Nonstationary Random Signals
type: journal_article
user_id: '43497'
volume: 56
year: '2008'
...
---
_id: '40869'
abstract:
- lang: eng
  text: The coherence spectrum is a well-known measure of the linear statistical relationship
    between two time series. In this paper, we extend this concept to several processes
    and define the generalized magnitude squared coherence (GMSC) spectrum as a function
    of the largest eigenvalue of a matrix containing all the pairwise complex coherence
    spectra. The GMSC is bounded between zero and one, and attains its maximum when
    all the processes are perfectly correlated at a given frequency. Furthermore,
    three different GMSC spectrum estimators, extending those previously proposed
    for the MSC of two processes, are presented. Specifically, we compare the Welch
    method, the minimum variance distortionless response (MVDR) estimator and a new
    estimator based on canonical correlation analysis (CCA).
author:
- first_name: D.
  full_name: Ramírez, D.
  last_name: Ramírez
- first_name: J.
  full_name: Vía, J.
  last_name: Vía
- first_name: I.
  full_name: Santamaría, I.
  last_name: Santamaría
citation:
  ama: 'Ramírez D, Vía J, Santamaría I. A generalization of the magnitude squared
    coherence spectrum for more than two signals: definition, properties and estimation.
    In: <i>Proc.\ IEEE Int.\ Conf.\ Acoustics, Speech and Signal Process.</i> ; 2008.
    doi:<a href="https://doi.org/10.1109/ICASSP.2008.4518473">10.1109/ICASSP.2008.4518473</a>'
  apa: 'Ramírez, D., Vía, J., &#38; Santamaría, I. (2008). A generalization of the
    magnitude squared coherence spectrum for more than two signals: definition, properties
    and estimation. <i>Proc.\ IEEE Int.\ Conf.\ Acoustics, Speech and Signal Process.</i>
    <a href="https://doi.org/10.1109/ICASSP.2008.4518473">https://doi.org/10.1109/ICASSP.2008.4518473</a>'
  bibtex: '@inproceedings{Ramírez_Vía_Santamaría_2008, place={Las Vegas, USA}, title={A
    generalization of the magnitude squared coherence spectrum for more than two signals:
    definition, properties and estimation}, DOI={<a href="https://doi.org/10.1109/ICASSP.2008.4518473">10.1109/ICASSP.2008.4518473</a>},
    booktitle={Proc.\ IEEE Int.\ Conf.\ Acoustics, Speech and Signal Process.}, author={Ramírez,
    D. and Vía, J. and Santamaría, I.}, year={2008} }'
  chicago: 'Ramírez, D., J. Vía, and I. Santamaría. “A Generalization of the Magnitude
    Squared Coherence Spectrum for More than Two Signals: Definition, Properties and
    Estimation.” In <i>Proc.\ IEEE Int.\ Conf.\ Acoustics, Speech and Signal Process.</i>
    Las Vegas, USA, 2008. <a href="https://doi.org/10.1109/ICASSP.2008.4518473">https://doi.org/10.1109/ICASSP.2008.4518473</a>.'
  ieee: 'D. Ramírez, J. Vía, and I. Santamaría, “A generalization of the magnitude
    squared coherence spectrum for more than two signals: definition, properties and
    estimation,” 2008, doi: <a href="https://doi.org/10.1109/ICASSP.2008.4518473">10.1109/ICASSP.2008.4518473</a>.'
  mla: 'Ramírez, D., et al. “A Generalization of the Magnitude Squared Coherence Spectrum
    for More than Two Signals: Definition, Properties and Estimation.” <i>Proc.\ IEEE
    Int.\ Conf.\ Acoustics, Speech and Signal Process.</i>, 2008, doi:<a href="https://doi.org/10.1109/ICASSP.2008.4518473">10.1109/ICASSP.2008.4518473</a>.'
  short: 'D. Ramírez, J. Vía, I. Santamaría, in: Proc.\ IEEE Int.\ Conf.\ Acoustics,
    Speech and Signal Process., Las Vegas, USA, 2008.'
date_created: 2023-01-30T11:52:04Z
date_updated: 2023-01-30T11:56:05Z
department:
- _id: '263'
doi: 10.1109/ICASSP.2008.4518473
place: Las Vegas, USA
publication: Proc.\ IEEE Int.\ Conf.\ Acoustics, Speech and Signal Process.
status: public
title: 'A generalization of the magnitude squared coherence spectrum for more than
  two signals: definition, properties and estimation'
type: conference
user_id: '43497'
year: '2008'
...
---
_id: '40863'
abstract:
- lang: eng
  text: This paper is concerned with coded multi-ary systems over linear channels.
    Based on a semi-analytical evolution technique, the impact of signaling schemes
    on the performance of low-cost iterative linear minimum-mean-square-error (LMMSE)
    detection is studied. It is shown that superposition coded modulation (SCM) maximizes
    the output signal-to-noise ratio (SNR) of LMMSE detectors. Consequently, SCM may
    potentially outperform other conventional signaling schemes when LMMSE detectors
    are used. Numerical examples are provided to verify the theoretical analysis.
author:
- first_name: Li
  full_name: Ping, Li
  last_name: Ping
- first_name: Jun
  full_name: Tong, Jun
  last_name: Tong
- first_name: Xiaojun
  full_name: Yuan, Xiaojun
  last_name: Yuan
- first_name: Qinghua
  full_name: Guo, Qinghua
  last_name: Guo
citation:
  ama: 'Ping L, Tong J, Yuan X, Guo Q. Performance analysis of multi-ary systems with
    iterative linear minimum-mean-square-error detection. In: <i>5th\ Int.\ Symp.\
    Turbo Codes &#38; Rel.\ Top.</i> ; 2008:192–197. doi:<a href="https://doi.org/10.1109/TURBOCODING.2008.4658696">10.1109/TURBOCODING.2008.4658696</a>'
  apa: Ping, L., Tong, J., Yuan, X., &#38; Guo, Q. (2008). Performance analysis of
    multi-ary systems with iterative linear minimum-mean-square-error detection. <i>5th\
    Int.\ Symp.\ Turbo Codes &#38; Rel.\ Top.</i>, 192–197. <a href="https://doi.org/10.1109/TURBOCODING.2008.4658696">https://doi.org/10.1109/TURBOCODING.2008.4658696</a>
  bibtex: '@inproceedings{Ping_Tong_Yuan_Guo_2008, title={Performance analysis of
    multi-ary systems with iterative linear minimum-mean-square-error detection},
    DOI={<a href="https://doi.org/10.1109/TURBOCODING.2008.4658696">10.1109/TURBOCODING.2008.4658696</a>},
    booktitle={5th\ Int.\ Symp.\ Turbo Codes &#38; Rel.\ Top.}, author={Ping, Li and
    Tong, Jun and Yuan, Xiaojun and Guo, Qinghua}, year={2008}, pages={192–197} }'
  chicago: Ping, Li, Jun Tong, Xiaojun Yuan, and Qinghua Guo. “Performance Analysis
    of Multi-Ary Systems with Iterative Linear Minimum-Mean-Square-Error Detection.”
    In <i>5th\ Int.\ Symp.\ Turbo Codes &#38; Rel.\ Top.</i>, 192–197, 2008. <a href="https://doi.org/10.1109/TURBOCODING.2008.4658696">https://doi.org/10.1109/TURBOCODING.2008.4658696</a>.
  ieee: 'L. Ping, J. Tong, X. Yuan, and Q. Guo, “Performance analysis of multi-ary
    systems with iterative linear minimum-mean-square-error detection,” in <i>5th\
    Int.\ Symp.\ Turbo Codes &#38; Rel.\ Top.</i>, 2008, pp. 192–197, doi: <a href="https://doi.org/10.1109/TURBOCODING.2008.4658696">10.1109/TURBOCODING.2008.4658696</a>.'
  mla: Ping, Li, et al. “Performance Analysis of Multi-Ary Systems with Iterative
    Linear Minimum-Mean-Square-Error Detection.” <i>5th\ Int.\ Symp.\ Turbo Codes
    &#38; Rel.\ Top.</i>, 2008, pp. 192–197, doi:<a href="https://doi.org/10.1109/TURBOCODING.2008.4658696">10.1109/TURBOCODING.2008.4658696</a>.
  short: 'L. Ping, J. Tong, X. Yuan, Q. Guo, in: 5th\ Int.\ Symp.\ Turbo Codes &#38;
    Rel.\ Top., 2008, pp. 192–197.'
date_created: 2023-01-30T11:52:03Z
date_updated: 2023-01-30T11:55:56Z
department:
- _id: '263'
doi: 10.1109/TURBOCODING.2008.4658696
page: 192–197
publication: 5th\ Int.\ Symp.\ Turbo Codes & Rel.\ Top.
status: public
title: Performance analysis of multi-ary systems with iterative linear minimum-mean-square-error
  detection
type: conference
user_id: '43497'
year: '2008'
...
---
_id: '40862'
author:
- first_name: D.
  full_name: Ramírez, D.
  last_name: Ramírez
- first_name: I.
  full_name: Santamaría, I.
  last_name: Santamaría
- first_name: J.
  full_name: Pérez, J.
  last_name: Pérez
- first_name: J.
  full_name: Vía, J.
  last_name: Vía
- first_name: J. A.
  full_name: García-Naya, J. A.
  last_name: García-Naya
- first_name: T. M.
  full_name: Fernández-Caramés, T. M.
  last_name: Fernández-Caramés
- first_name: H.
  full_name: Pérez-Iglesias, H.
  last_name: Pérez-Iglesias
- first_name: M. González
  full_name: López, M. González
  last_name: López
- first_name: L.
  full_name: Castedo, L.
  last_name: Castedo
- first_name: J. M.
  full_name: Torres-Royo, J. M.
  last_name: Torres-Royo
citation:
  ama: Ramírez D, Santamaría I, Pérez J, et al. A comparative study of STBC transmissions
    at 2.4 GHz over indoor channels using a $2 \times 2$ MIMO testbed. <i>Wireless
    Comm and Mobile Computing</i>. 2008;8(9):1149–1164. doi:<a href="https://doi.org/10.1002/wcm.558">10.1002/wcm.558</a>
  apa: Ramírez, D., Santamaría, I., Pérez, J., Vía, J., García-Naya, J. A., Fernández-Caramés,
    T. M., Pérez-Iglesias, H., López, M. G., Castedo, L., &#38; Torres-Royo, J. M.
    (2008). A comparative study of STBC transmissions at 2.4 GHz over indoor channels
    using a $2 \times 2$ MIMO testbed. <i>Wireless Comm. and Mobile Computing</i>,
    <i>8</i>(9), 1149–1164. <a href="https://doi.org/10.1002/wcm.558">https://doi.org/10.1002/wcm.558</a>
  bibtex: '@article{Ramírez_Santamaría_Pérez_Vía_García-Naya_Fernández-Caramés_Pérez-Iglesias_López_Castedo_Torres-Royo_2008,
    title={A comparative study of STBC transmissions at 2.4 GHz over indoor channels
    using a $2 \times 2$ MIMO testbed}, volume={8}, DOI={<a href="https://doi.org/10.1002/wcm.558">10.1002/wcm.558</a>},
    number={9}, journal={Wireless Comm. and Mobile Computing}, author={Ramírez, D.
    and Santamaría, I. and Pérez, J. and Vía, J. and García-Naya, J. A. and Fernández-Caramés,
    T. M. and Pérez-Iglesias, H. and López, M. González and Castedo, L. and Torres-Royo,
    J. M.}, year={2008}, pages={1149–1164} }'
  chicago: 'Ramírez, D., I. Santamaría, J. Pérez, J. Vía, J. A. García-Naya, T. M.
    Fernández-Caramés, H. Pérez-Iglesias, M. González López, L. Castedo, and J. M.
    Torres-Royo. “A Comparative Study of STBC Transmissions at 2.4 GHz over Indoor
    Channels Using a $2 \times 2$ MIMO Testbed.” <i>Wireless Comm. and Mobile Computing</i>
    8, no. 9 (2008): 1149–1164. <a href="https://doi.org/10.1002/wcm.558">https://doi.org/10.1002/wcm.558</a>.'
  ieee: 'D. Ramírez <i>et al.</i>, “A comparative study of STBC transmissions at 2.4
    GHz over indoor channels using a $2 \times 2$ MIMO testbed,” <i>Wireless Comm.
    and Mobile Computing</i>, vol. 8, no. 9, pp. 1149–1164, 2008, doi: <a href="https://doi.org/10.1002/wcm.558">10.1002/wcm.558</a>.'
  mla: Ramírez, D., et al. “A Comparative Study of STBC Transmissions at 2.4 GHz over
    Indoor Channels Using a $2 \times 2$ MIMO Testbed.” <i>Wireless Comm. and Mobile
    Computing</i>, vol. 8, no. 9, 2008, pp. 1149–1164, doi:<a href="https://doi.org/10.1002/wcm.558">10.1002/wcm.558</a>.
  short: D. Ramírez, I. Santamaría, J. Pérez, J. Vía, J.A. García-Naya, T.M. Fernández-Caramés,
    H. Pérez-Iglesias, M.G. López, L. Castedo, J.M. Torres-Royo, Wireless Comm. and
    Mobile Computing 8 (2008) 1149–1164.
date_created: 2023-01-30T11:52:03Z
date_updated: 2023-01-30T11:55:54Z
department:
- _id: '263'
doi: 10.1002/wcm.558
intvolume: '         8'
issue: '9'
page: 1149–1164
publication: Wireless Comm. and Mobile Computing
status: public
title: A comparative study of STBC transmissions at 2.4 GHz over indoor channels using
  a $2 \times 2$ MIMO testbed
type: journal_article
user_id: '43497'
volume: 8
year: '2008'
...
---
_id: '40861'
abstract:
- lang: eng
  text: This paper studies orthogonal frequency-division multiplexing (OFDM) systems
    employing coded modulation. Clipping is applied to reduce the peak-to-average-power-ratio
    (PAPR) of the transmit signal. A soft compensation method is proposed to combat
    the clipping effect. It is shown that the proposed method can outperform conventional
    clipping effect mitigation methods. The impact of signaling schemes of the coded
    modulation on system performance is investigated. The average variance analysis
    and numerical results demonstrate that superposition coded modulation (SCM) together
    with the proposed detection technique provides a simple and efficient solution
    to clipped OFDM transmission.
author:
- first_name: Jun
  full_name: Tong, Jun
  last_name: Tong
- first_name: Li
  full_name: Ping, Li
  last_name: Ping
citation:
  ama: 'Tong J, Ping L. Iterative detection techniques for clipped OFDM systems. In:
    <i>Proc.\ IEEE Global Telecomm.\ Conf.</i> ; 2008:1–5. doi:<a href="https://doi.org/10.1109/GLOCOM.2008.ECP.225">10.1109/GLOCOM.2008.ECP.225</a>'
  apa: Tong, J., &#38; Ping, L. (2008). Iterative detection techniques for clipped
    OFDM systems. <i>Proc.\ IEEE Global Telecomm.\ Conf.</i>, 1–5. <a href="https://doi.org/10.1109/GLOCOM.2008.ECP.225">https://doi.org/10.1109/GLOCOM.2008.ECP.225</a>
  bibtex: '@inproceedings{Tong_Ping_2008, title={Iterative detection techniques for
    clipped OFDM systems}, DOI={<a href="https://doi.org/10.1109/GLOCOM.2008.ECP.225">10.1109/GLOCOM.2008.ECP.225</a>},
    booktitle={Proc.\ IEEE Global Telecomm.\ Conf.}, author={Tong, Jun and Ping, Li},
    year={2008}, pages={1–5} }'
  chicago: Tong, Jun, and Li Ping. “Iterative Detection Techniques for Clipped OFDM
    Systems.” In <i>Proc.\ IEEE Global Telecomm.\ Conf.</i>, 1–5, 2008. <a href="https://doi.org/10.1109/GLOCOM.2008.ECP.225">https://doi.org/10.1109/GLOCOM.2008.ECP.225</a>.
  ieee: 'J. Tong and L. Ping, “Iterative detection techniques for clipped OFDM systems,”
    in <i>Proc.\ IEEE Global Telecomm.\ Conf.</i>, 2008, pp. 1–5, doi: <a href="https://doi.org/10.1109/GLOCOM.2008.ECP.225">10.1109/GLOCOM.2008.ECP.225</a>.'
  mla: Tong, Jun, and Li Ping. “Iterative Detection Techniques for Clipped OFDM Systems.”
    <i>Proc.\ IEEE Global Telecomm.\ Conf.</i>, 2008, pp. 1–5, doi:<a href="https://doi.org/10.1109/GLOCOM.2008.ECP.225">10.1109/GLOCOM.2008.ECP.225</a>.
  short: 'J. Tong, L. Ping, in: Proc.\ IEEE Global Telecomm.\ Conf., 2008, pp. 1–5.'
date_created: 2023-01-30T11:52:03Z
date_updated: 2023-01-30T11:55:52Z
department:
- _id: '263'
doi: 10.1109/GLOCOM.2008.ECP.225
page: 1–5
publication: Proc.\ IEEE Global Telecomm.\ Conf.
status: public
title: Iterative detection techniques for clipped OFDM systems
type: conference
user_id: '43497'
year: '2008'
...
---
_id: '40871'
abstract:
- lang: eng
  text: 'A complex random vector is called improper (noncircular) if it is correlated
    with its complex conjugate. We consider measures for the degree of impropriety
    that are invariant under linear transformation. These measures are functions of
    the canonical correlations between the vector and its complex conjugate, which
    have been termed the circularity coefficients. However, we show that these circularity
    coefficients do not tell the whole story: Two random vectors with identical covariance
    matrix and identical circularity coefficients can still behave differently in
    second-order estimation and detection.'
author:
- first_name: Peter J.
  full_name: Schreier, Peter J.
  last_name: Schreier
citation:
  ama: 'Schreier PJ. The degree of impropriety (noncircularity) of complex random
    vectors. In: <i>Proc.\ IEEE Int.\ Conf.\ Acoustics, Speech and Signal Process.</i>
    ; 2008:3909–3912. doi:<a href="https://doi.org/10.1109/ICASSP.2008.4518508">10.1109/ICASSP.2008.4518508</a>'
  apa: Schreier, P. J. (2008). The degree of impropriety (noncircularity) of complex
    random vectors. <i>Proc.\ IEEE Int.\ Conf.\ Acoustics, Speech and Signal Process.</i>,
    3909–3912. <a href="https://doi.org/10.1109/ICASSP.2008.4518508">https://doi.org/10.1109/ICASSP.2008.4518508</a>
  bibtex: '@inproceedings{Schreier_2008, title={The degree of impropriety (noncircularity)
    of complex random vectors}, DOI={<a href="https://doi.org/10.1109/ICASSP.2008.4518508">10.1109/ICASSP.2008.4518508</a>},
    booktitle={Proc.\ IEEE Int.\ Conf.\ Acoustics, Speech and Signal Process.}, author={Schreier,
    Peter J.}, year={2008}, pages={3909–3912} }'
  chicago: Schreier, Peter J. “The Degree of Impropriety (Noncircularity) of Complex
    Random Vectors.” In <i>Proc.\ IEEE Int.\ Conf.\ Acoustics, Speech and Signal Process.</i>,
    3909–3912, 2008. <a href="https://doi.org/10.1109/ICASSP.2008.4518508">https://doi.org/10.1109/ICASSP.2008.4518508</a>.
  ieee: 'P. J. Schreier, “The degree of impropriety (noncircularity) of complex random
    vectors,” in <i>Proc.\ IEEE Int.\ Conf.\ Acoustics, Speech and Signal Process.</i>,
    2008, pp. 3909–3912, doi: <a href="https://doi.org/10.1109/ICASSP.2008.4518508">10.1109/ICASSP.2008.4518508</a>.'
  mla: Schreier, Peter J. “The Degree of Impropriety (Noncircularity) of Complex Random
    Vectors.” <i>Proc.\ IEEE Int.\ Conf.\ Acoustics, Speech and Signal Process.</i>,
    2008, pp. 3909–3912, doi:<a href="https://doi.org/10.1109/ICASSP.2008.4518508">10.1109/ICASSP.2008.4518508</a>.
  short: 'P.J. Schreier, in: Proc.\ IEEE Int.\ Conf.\ Acoustics, Speech and Signal
    Process., 2008, pp. 3909–3912.'
date_created: 2023-01-30T11:52:04Z
date_updated: 2023-01-30T11:56:03Z
department:
- _id: '263'
doi: 10.1109/ICASSP.2008.4518508
page: 3909–3912
publication: Proc.\ IEEE Int.\ Conf.\ Acoustics, Speech and Signal Process.
status: public
title: The degree of impropriety (noncircularity) of complex random vectors
type: conference
user_id: '43497'
year: '2008'
...