Analytical comparison of mean-squares errors for channel response estimation based on frequency- and time-domain pilot signals

Abstract

For the orthogonal frequency-division multiplexing (OFDM) system, one can estimate the channel responses (CRs) based on frequency-domain (FD) pilot symbols. On the other hand, one can also estimate the time-domain (TD) channel impulse response by inserting a unit pulse ahead of each OFDM block. However, there is no analytical comparison between the CR… (More)
DOI: 10.1109/ISWCS.2012.6328510

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3 Figures and Tables