Conference Paper

Approximate ber expression of ML equalizer for OFDM over doubly selective channels

Dept. of ACSE, Hiroshima Univ., Higashi-Hiroshima
DOI: 10.1109/ICASSP.2008.4518293 Conference: Acoustics, Speech and Signal Processing, 2008. ICASSP 2008. IEEE International Conference on
Source: IEEE Xplore

ABSTRACT Maximum Likelihood (ML) equalization for Orthogonal Frequency Division Multiplexing (OFDM) over time- and frequency- selective channels is analyzed in this paper. An approximate expression for bit error rate (BER) performance of the ML equalizer with a limited number of taps is developed, which subsumes the matched filter bound (MFB) equalization performance as a special case, and which saves on intensive time-consuming empirical simulations. Numerical simulations validate our approximate expression.

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