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Performance of phase-invariant trellis coding for differentially-encoded coherent M-PSK signals on Rayleigh fading channels

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2 Author(s)
Lee, L.H.C. ; Electr. Eng. Labs., Manchester Univ., UK ; Farrell, P.G.

Rate(n-1)/n phase-invariant trellis coding with unquantised maximum-likelihood Viterbi decoding for differentially-encoded coherent M-ary (M-2n) PSK signals on Rayleigh fading channels is considered. The simulated bit error probability performance of the trellis-coded modulation is presented for four- and eight-state linear and nonlinear codes for constraint lengths 3 and 4, respectively, with coding gains of at least 2.5 dB at a bit error rate of 10-3.

Published in:

Electronics Letters  (Volume:27 ,  Issue: 12 )