Estimation and equalization of time-selective fading channels

G. Tong Zhou, Yongsub Kim, Georgios B Giannakis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

Time-selective fading effects can occur in communication systems due to channel variations, carrier frequency offset, and oscillator's phase noise. In this paper, we model the multiplicative channel fading effect as an autoregressive process and the objective is to recover the original transmitted symbols. Filterbanks are used here to precode the transmitted symbols and second-order statistics of the output data are computed which in turn, yield the correlation information of the time-varying channel. Next, we employ the Kalman filter to track channel variations and recover the transmitted symbols in a block-by-block fashion. For the Rayleigh fading case, we also take advantage of the additional information provided by pilot symbol assisted modulation (PSAM) to resolve channel ambiguities. Computer simulations are provided to illustrate the concepts.

Original languageEnglish (US)
Title of host publicationConference Record of the 33rd Asilomar Conference on Signals, Systems, and Computers
EditorsMichael B. Matthews
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages248-252
Number of pages5
ISBN (Electronic)0780357000, 9780780357006
DOIs
StatePublished - Jan 1 1999
Event33rd Asilomar Conference on Signals, Systems, and Computers, ACSSC 1999 - Pacific Grove, United States
Duration: Oct 24 1999Oct 27 1999

Publication series

NameConference Record of the 33rd Asilomar Conference on Signals, Systems, and Computers
Volume1

Other

Other33rd Asilomar Conference on Signals, Systems, and Computers, ACSSC 1999
CountryUnited States
CityPacific Grove
Period10/24/9910/27/99

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