THE OPTIMUM COMBINATION OF BLOCK-CODES AND RECEIVERS FOR ARBITRARY CHANNELS

This paper determines the combinations of transmitted Mock codewords and matching receiver filters that maximize the signal-to-noise ratio at the detector with arbitrary channel impulse response and arbitrary noise spectrum. This permits representing the channel as a set of parallel, uncoupled subchannels with uncorrected noise. This representation is used to calculate the capacity of an arbitrary Mock coded, time discrete channel. It is shown that substantial coding gains, compared to symbol-by-symbol processing, can be achieved in this way. Additionally, the block code used can be concatenated with trellis-coded modulation so that the two coding gains are additive. © 1990 IEEE