Polynomial based analog source-channel codes

  • Authors:
  • Niklas Wernersson;Mikael Skoglund;Tor Ramstad

  • Affiliations:
  • School of Electrical Engineering and ACCESS Linnaeus Center, Royal Institute of Technology, Stockholm, Sweden;School of Electrical Engineering and ACCESS Linnaeus Center, Royal Institute of Technology, Stockholm, Sweden;Dept. of Electronics and Telecommunications, Norwegian University of Science and Technology, Trondheim, Norway

  • Venue:
  • IEEE Transactions on Communications
  • Year:
  • 2009

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Abstract

In many communication applications one is interested in transmitting a time-discrete analog-valued (i.e. continuous alphabet) source over a time-discrete analog channel. We study this problem in the case of bandwidth expansion, in the sense that one source sample, X, is transmitted over N orthogonal channels. An analog source-channel code based on orthogonal polynomials is proposed and analyzed. The code can be generated using a Gram-Schmidt procedure, to fit virtually any source distribution.