Linear congruential trellis source codes: Design and analysis

Research output: Contribution to journalArticle

Abstract

Rate-distortion trellis source codes are developed for quantizing memoryless IID sources. The codes are generated by simple linear congruential recursions. The method generates codes at a variety of rates including fractional ones; reproducer sets can be large, a crucial advantage with certain sources. Axioms for good code
construction are developed that are based on recursion properties, certain symmetries and trellis branch correlation properties. These axioms are justified by the outcome of random searches for good codes. It is found that the trellis code design breaks into two problems: the trellis labels should have certain properties regardless of the source distribution; and the reproducer values depends on the source. Encoders are simulated for a number of continuous amplitude sources. For the same computational complexity the new codes in most cases perform better than the best codes in the literature, including trellis coded quantization and fake process approaches.

Details

Authors
Organisations
External organisations
  • Awapatent AB
  • University of Edinburgh
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • source codes, trellis codes, data commpression linear congruences
Original languageEnglish
Pages (from-to)1693-1701
JournalIEEE Transactions on Communications
Volume55
Issue number9
Publication statusPublished - 2007
Publication categoryResearch
Peer-reviewedYes