Stochastic UWB wireless channel modeling and estimation from received signal measurements

Yanyan Li, Mohammed Olama, Seddik Djouadi, Aly Fathy, Teja Kuruganti

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

In this paper, stochastic differential equations (SDEs) are used to model ultra-wideband (UWB) indoor channels. We show that the impulse responses for timevarying wireless channels can be approximated in a mean square sense as close as desired by impulse responses that can be realized by SDEs. The Expected Maximization and Extended Kalman Filter are employed to recursively identify and estimate the channel parameters and states, respectively, from online received signal measurement data. The state variables represent the inphase and quadrature components of the UWB channel. Both resolvable and non-resolvable multipath received signals are considered and represented as small-scaled Nakagami fading. The proposed models together with the estimation algorithm are tested using UWB indoor measurement data and the results are presented.

Original languageEnglish
Title of host publicationRWS 2009 IEEE Radio and Wireless Symposium, Proceedings
Pages195-198
Number of pages4
DOIs
StatePublished - 2009
Event2009 IEEE Radio and Wireless Symposium, RWS 2009 - San Diego, CA, United States
Duration: Jan 18 2008Jan 22 2008

Publication series

NameRWS 2009 IEEE Radio and Wireless Symposium, Proceedings

Conference

Conference2009 IEEE Radio and Wireless Symposium, RWS 2009
Country/TerritoryUnited States
CitySan Diego, CA
Period01/18/0801/22/08

Keywords

  • Modeling
  • Multipath channels
  • Stochastic differential equations
  • UWB communications

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