Source and channel coding for cooperative relaying

Deniz Gunduz, Elza Erkip

Research output: Contribution to conferencePaper

Abstract

We consider the end-to-end distortion achieved by a half-duplex relay system where a continuous amplitude source is transmitted over a quasi-static Rayleigh fading channel. We investigate layered source coding (LS) where different source layers are sent at different times. The relay only forwards the important layers, leading to higher multiplexing gains. Alternatively, different source layers can be superimposed using a broadcast code (BS). The third strategy we consider is uncoded transmission (UT) followed by amplify-and-forward relaying. In all cases we perform a high S N R analysis and find the optimal distortion exponent which is the exponential decay rate of expected distortion with increasing S N R. We show that layered compression and broadcast coding is optimal in distortion exponent sense for large bandwidth expansions:

Original languageEnglish (US)
Pages950-954
Number of pages5
DOIs
StatePublished - 2005
Event2005 IEEE 6th Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2005 - New York, NY, United States
Duration: Jun 5 2005Jun 8 2005

Other

Other2005 IEEE 6th Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2005
CountryUnited States
CityNew York, NY
Period6/5/056/8/05

ASJC Scopus subject areas

  • Signal Processing
  • Engineering(all)

Fingerprint Dive into the research topics of 'Source and channel coding for cooperative relaying'. Together they form a unique fingerprint.

  • Cite this

    Gunduz, D., & Erkip, E. (2005). Source and channel coding for cooperative relaying. 950-954. Paper presented at 2005 IEEE 6th Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2005, New York, NY, United States. https://doi.org/10.1109/SPAWC.2005.1506280