A Full Performance Analysis of Channel Estimation Methods for Time Varying OFDM Systems

In this paper, the authors have evaluated various methods of time-frequency-selective fading channels estimation in OFDM system and some of them improved under time varying conditions. So, these different techniques will be studied through different algorithms and for different schemes of modulations (16 QAM, BPSK, QPSK,...). Channel estimation gathers different schemes and algorithms, some of them are dedicated for slowly time varying (such as block type arrangement insertion, Bayesian Cramer-Rao Bound, Kalman estimator, Subspace estimator,...) whereas the others concern highly time varying channels (comb type insertion,...) .

Provided by: University of Tunis Topic: Mobility Date Added: Dec 2011 Format: PDF

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