Layered cooperative source and channel coding

Xiaofeng Xu, Deniz Gunduz, Elza Erkip, Yao Wang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Cooperative techniques form a new wireless communication paradigm in which terminals help each other in relaying information to combat the random fading and to provide diversity in radio channels. Past work has focused on improving channel reliability through cooperation. We propose to jointly allocate bits among source coding, channel coding and cooperation to minimize the expected source distortion. Recognizing that not all source bits are equal, we further propose to protect the more important bits through user cooperation. To evaluate the gain of layered cooperation, we simulate four modes of communications that differ in their error protection strategy (equal vs. layered, with vs. without cooperation) with a practical channel coder, and show that, for i.i.d. Gaussian sources, layered cooperation can achieve significant performance gains over non-layered/non-cooperative communication. We also carry out an information theoretic analysis illustrating fundamental benefits of layered cooperation.

Original languageEnglish (US)
Title of host publicationIEEE International Conference on Communications
Pages1200-1204
Number of pages5
Volume2
StatePublished - 2005
Event2005 IEEE International Conference on Communications, ICC 2005 - Seoul, Korea, Republic of
Duration: May 16 2005May 20 2005

Other

Other2005 IEEE International Conference on Communications, ICC 2005
CountryKorea, Republic of
CitySeoul
Period5/16/055/20/05

Fingerprint

Channel coding
Communication
Information analysis
Fading (radio)

Keywords

  • Cooperative diversity
  • Layered compression
  • Source and channel coding
  • Unequal error protection

ASJC Scopus subject areas

  • Media Technology

Cite this

Xu, X., Gunduz, D., Erkip, E., & Wang, Y. (2005). Layered cooperative source and channel coding. In IEEE International Conference on Communications (Vol. 2, pp. 1200-1204)

Layered cooperative source and channel coding. / Xu, Xiaofeng; Gunduz, Deniz; Erkip, Elza; Wang, Yao.

IEEE International Conference on Communications. Vol. 2 2005. p. 1200-1204.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Xu, X, Gunduz, D, Erkip, E & Wang, Y 2005, Layered cooperative source and channel coding. in IEEE International Conference on Communications. vol. 2, pp. 1200-1204, 2005 IEEE International Conference on Communications, ICC 2005, Seoul, Korea, Republic of, 5/16/05.
Xu X, Gunduz D, Erkip E, Wang Y. Layered cooperative source and channel coding. In IEEE International Conference on Communications. Vol. 2. 2005. p. 1200-1204
Xu, Xiaofeng ; Gunduz, Deniz ; Erkip, Elza ; Wang, Yao. / Layered cooperative source and channel coding. IEEE International Conference on Communications. Vol. 2 2005. pp. 1200-1204
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