On the intractability of permuting a block code to minimize trellis complexity

  • Authors:
  • G. B. Horn;F. R. Kschischang

  • Affiliations:
  • Dept. of Electr. & Comput. Eng., Toronto Univ., Ont.;-

  • Venue:
  • IEEE Transactions on Information Theory - Part 1
  • Year:
  • 2006

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Abstract

An important problem in the theory and application of block code trellises is to find a coordinate permutation of a given code to minimize the trellis complexity. We show that the problem of finding a coordinate permutation that minimizes the number of vertices at a given depth in the minimal trellis for a binary linear block code is NP-complete