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 communicati on channels. We first give the formulation of all causal H-infinity equaliz ers using the results of and then look at the finite delay case. We compare the risk-sensitive H-infinity equalizer with the MMSE equalizer with respe ct to both the average and the worst-case BER performances and illustrate t he improvement due to the use of the H-infinity equalizer.