On receiver structures for channels having memory

  • Authors:
  • R. Chang;J. Hancock

  • Affiliations:
  • -;-

  • Venue:
  • IEEE Transactions on Information Theory
  • Year:
  • 2006

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Abstract

This paper is concerned withm-ary communication channels(m geq 2)having intersymbol interference betweenLtime periods(L geq 2). Receiver structures are developed for making jointly optimum (minimum probability of error) decisions aboutLconsecutive symbols on the basis of the complete message received. The decision statistics are computed by a sequential procedure, and the number of computations increases only linearly with the message length. The method can be applied to the general problem of making decisions about the states of a discrete-state Markov information source which is observable only through a channel with additive Gaussian or non-Gaussian noise.