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On Variable Length Codes for Iterative Source/Channel Decoding

Published: 27 March 2001 Publication History

Abstract

Abstract: We focus on a trellis-based decoding technique for variable length codes (VLCs) which does not require any additional side information besides the number of bits in the coded sequence. A bit-level soft-in/soft-out decoder based on this trellis is used as an outer component decoder in an iterative decoding scheme for a serially concatenated source/channel coding system. In contrast to previous approaches using this kind of trellis we do not consider the received sequence as a concatenation of variable length codewords, but as one long code word of a (weak) binary channel code which can be soft-in/soft-out decoded. By evaluating the distance properties of selected variable length codes we show that some codes are more suitable for trellis-based decoding than others. Finally we present simulation results which show the performance of the iterative decoding approach.

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Cited By

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  • (2009)Reliable transfer of variable-length coded correlated dateProceedings of the 6th IEEE Conference on Consumer Communications and Networking Conference10.5555/1700527.1700749(872-876)Online publication date: 11-Jan-2009
  • (2009)Iterative joint source-channel decoding of VLC exploiting source semantics over realistic radio-mobile channelsIEEE Transactions on Communications10.1109/TCOMM.2009.06.06070457:6(1701-1711)Online publication date: 1-Jun-2009
  • (2008)Joint source and channel decoding for variable length encoded turbo codesEURASIP Journal on Advances in Signal Processing10.1155/2008/1498392008(3)Online publication date: 1-Jan-2008
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  1. On Variable Length Codes for Iterative Source/Channel Decoding

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      cover image Guide Proceedings
      DCC '01: Proceedings of the Data Compression Conference
      March 2001

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      IEEE Computer Society

      United States

      Publication History

      Published: 27 March 2001

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      View all
      • (2009)Reliable transfer of variable-length coded correlated dateProceedings of the 6th IEEE Conference on Consumer Communications and Networking Conference10.5555/1700527.1700749(872-876)Online publication date: 11-Jan-2009
      • (2009)Iterative joint source-channel decoding of VLC exploiting source semantics over realistic radio-mobile channelsIEEE Transactions on Communications10.1109/TCOMM.2009.06.06070457:6(1701-1711)Online publication date: 1-Jun-2009
      • (2008)Joint source and channel decoding for variable length encoded turbo codesEURASIP Journal on Advances in Signal Processing10.1155/2008/1498392008(3)Online publication date: 1-Jan-2008
      • (2007)Iterative decoding for the concatenated system of VLC and STTC in presence of channel estimation errorsProceedings of the 2007 international conference on Wireless communications and mobile computing10.1145/1280940.1281083(671-676)Online publication date: 12-Aug-2007
      • (2005)Iterative list decoding of concatenated source-channel codesEURASIP Journal on Advances in Signal Processing10.1155/ASP.2005.9542005(954-960)Online publication date: 1-Jan-2005
      • (2005)Joint source-channel decoding of variable-length codes with soft informationEURASIP Journal on Advances in Signal Processing10.1155/ASP.2005.9062005(906-927)Online publication date: 1-Jan-2005

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