On linear H(infinity) equalization of communication channels

As an alternative to existing techniques and algorithms, we investigate the merit of the H(infinity) approach to the linear equalization of communication channels. We first give the formulation of all causal H(infinity) equalizers using the results of and then look at the finite delay ease. We compare the risk-sensitive H(infinity) equalizer with the MMSE equalizer with respect to both the average and the worst-case BER performances and illustrate the improvement due to the use of the H(infinity) equalizer.