Rate-adaptive compression of LDPC syndromes for Slepian-Wolf coding

  • Authors:

  • Yong Fang;Gwanggil Jeon;Jechang Jeong

  • Affiliations:

  • College of Information Engineering, Northwest A&F University, Shaanxi, Yangling, China;Dept. Electronics and Computer Engineering, Hanyang University, Seoul, Korea;Dept. Electronics and Computer Engineering, Hanyang University, Seoul, Korea

  • Venue:
  • PCS'09 Proceedings of the 27th conference on Picture Coding Symposium
  • Year:
  • 2009

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Abstract

This paper considers the LDPC-based Slepian-Wolf coding with decoder side information. The paper analyzes the statistical properties of LDPC syndromes and shows that there are residual redundancies in LDPC syndromes, especially at low rates. Furthermore, this paper proposes a rate-adaptive way to compress LDPC syndromes.