---
_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'
...