N-user trellis coding for a class of multiple-access channels (corresp.)
P Chevillat - IEEE Transactions on Information Theory, 1981 - ieeexplore.ieee.org
IEEE Transactions on Information Theory, 1981•ieeexplore.ieee.org
Trellis coding is investigated for a class of N-user multiple-access channels. It is shown that
N-user trellis coding, in conjunction with Viterbi or sequential decoding, permits the multiple-
access function to be combined with forward error correction. The distance and rate
properties are analyzed for linear (convolutional) N-user trellis codes, and the use of
nonlinear N-user trellis coding is discussed. A procedure is given for constructing N-user
convolutional-code N-tuples with large free distance. Finally the error performance is …
N-user trellis coding, in conjunction with Viterbi or sequential decoding, permits the multiple-
access function to be combined with forward error correction. The distance and rate
properties are analyzed for linear (convolutional) N-user trellis codes, and the use of
nonlinear N-user trellis coding is discussed. A procedure is given for constructing N-user
convolutional-code N-tuples with large free distance. Finally the error performance is …
Trellis coding is investigated for a class of -user multiple-access channels. It is shown that -user trellis coding, in conjunction with Viterbi or sequential decoding, permits the multiple-access function to be combined with forward error correction. The distance and rate properties are analyzed for linear (convolutional) -user trellis codes, and the use of nonlinear -user trellis coding is discussed. A procedure is given for constructing -user convolutional-code -tuples with large free distance. Finally the error performance is analyzed, and coding gains of several decibels over uncoded time sharing are verified by simulation results.
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