Generalized capacity and Source-Channel coding for packet erasure channels

Yifan Liang, Andrea Goldsmith, Michelle Effros

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

2 Scopus citations

Abstract

We study the transmission of a stationary ergodic Gaussian source over a packet erasure channel, which is a composite channel with degraded states. A broadcast channel code can be applied to a composite channel to obtain different rates in the different channel states. However, we show that a non-broadcast direct transmission strategy achieves a higher expected rate than the broadcast code, although it does not meet Shannon's definition of reliable communication since it does not guarantee which bits will be received. Each channel code has a matching source code: the multiresolution source code allows the broadcast channel code to transmit prioritized information, and the symmetric multiple description source code enables direct transmission of unprioritized information. The end-to-end expected distortions of these schemes are also compared.

Original languageEnglish (US)
Title of host publication2008 IEEE Global Telecommunications Conference, GLOBECOM 2008
Pages951-955
Number of pages5
DOIs
StatePublished - 2008
Externally publishedYes
Event2008 IEEE Global Telecommunications Conference, GLOBECOM 2008 - New Orleans, LA, United States
Duration: Nov 30 2008Dec 4 2008

Publication series

NameGLOBECOM - IEEE Global Telecommunications Conference

Other

Other2008 IEEE Global Telecommunications Conference, GLOBECOM 2008
Country/TerritoryUnited States
CityNew Orleans, LA
Period11/30/0812/4/08

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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