On linear H/sup /spl infin// equalization of communication channels

As an alternative to existing techniques and algorithms, we investigate the merit of the H/sup /spl infin// approach to the linear equalization of communication channels. We first give the formulation of all causal H/sup /spl infin// equalizers using the results of and then look at the finite delay ease. We compare the risk-sensitive H/sup /spl infin// 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/sup /spl infin// equalizer.