Memory truncation and crosstalk cancellation in transmultiplexers

This letter addresses the design of linear networks that reduce intersymbol interference and crosstalk in transmultiplexers. The proposed filter design method is based on the maximization of the signal-to-noise ratio at the detector input, defined for channel memories being truncated to arbitrarily short lengths. Thus, low-complexity Viterbi detectors working independently for all data channels can be used. The design of minimum mean-square error equalizer networks is included in the framework.