@inproceedings{11881,
  abstract     = {{A combination of GPS (global positioning system) and INS (inertial navigation system) is known to provide high precision and highly robust vehicle localization. Notably during times when the GPS signal has a poor quality, e.g. due to the lack of a sufficiently large number of visible satellites, the INS, which may consist of a gyroscope and an odometer, will lead to improved positioning accuracy. In this paper we show how velocity information obtained from GSM (global system for mobile communications) signalling, rather than from a tachometer, can be used together with a gyroscope sensor to support localization in the presence of temporarily unavailable GPS data. We propose a sensor fusion system architecture and present simulation results that show the effectiveness of this approach.}},
  author       = {{Peschke, Sven and Bevermeier, Maik and Haeb-Umbach, Reinhold}},
  booktitle    = {{6th Workshop on Positioning Navigation and Communication (WPNC 2009)}},
  keywords     = {{cellular radio, distance measurement, global positioning system, Global Positioning System, global system for mobile communications, GPS positioning approach, GSM velocity, gyroscopes, gyroscope sensor, inertial navigation, inertial navigation system, odometer, sensor fusion system architecture, sensors}},
  pages        = {{195--202}},
  title        = {{{A GPS positioning approach exploiting GSM velocity estimates}}},
  doi          = {{10.1109/WPNC.2009.4907827}},
  year         = {{2009}},
}

@article{11799,
  abstract     = {{In this paper, we propose a novel similarity measure to be used for localizing mobile terminals by comparing measured signal power levels with a database of predictions. The proposed measure provides the possibility to incorporate inherent information about signal power level measurements requested by the serving base station but not reported by the mobile terminal. Increased positioning accuracy was observed both in simulations and with real field data}},
  author       = {{Haeb-Umbach, Reinhold and Peschke, Sven}},
  journal      = {{IEEE Transactions on Vehicular Technology}},
  keywords     = {{cellular phone positioning, cellular radio, measured signal power levels, mobile handsets, mobility management (mobile radio)}},
  number       = {{1}},
  pages        = {{368--372}},
  title        = {{{A Novel Similarity Measure for Positioning Cellular Phones by a Comparison With a Database of Signal Power Levels}}},
  doi          = {{10.1109/TVT.2006.889563}},
  volume       = {{56}},
  year         = {{2007}},
}

@inproceedings{11883,
  abstract     = {{In this paper, we experimentally evaluate algorithms for velocity estimation of a GSM 900 mobile terminal which are based on the analysis of the statistical properties of the fast fading process. It is shown how theses statistics can be obtained from the training sequences present in downlink transmission bursts without establishing an active connection. Realistic simulations of a GSM channel according to the COST 207 channel models have been conducted. These models incorporate effects like multipath propagation, fading, cochannel interference and additive noise. It is shown that velocity estimation by searching for the maximum slope of the power density spectrum of the fast fading performs best.}},
  author       = {{Peschke, Sven and Haeb-Umbach, Reinhold}},
  booktitle    = {{4th Workshop on Positioning Navigation and Communication (WPNC 2007)}},
  keywords     = {{additive noise, cellular radio, channel estimation, cochannel interference, COST 207 channel models, downlink transmission bursts, fading channels, fading process, GSM downlink signalling, mobile terminals, multipath channels, multipath propagation, power density spectrum, statistical analysis, statistical properties, telecommunication links, telecommunication terminals, velocity estimation}},
  pages        = {{217--222}},
  title        = {{{Velocity Estimation of Mobile Terminals by Exploiting GSM Downlink Signalling}}},
  doi          = {{10.1109/WPNC.2007.353637}},
  year         = {{2007}},
}