On the performance of distributed LT codes

Srinath Puducheri, Jorg Kliewer, Thomas E. Fuja

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

2 Scopus citations

Abstract

In this paper we extend previous results on distributed LT codes and focus on the frame erasure rate performance of the corresponding block codes with fixed rate. Specifically, we address modified LT (MLT) codes which resemble LT codes in both structure and performance. First, an MLT code construction scheme for four sources communicating with a single sink via a common relay is presented. Then, for the fixed rate case and erasure channels at both source-relay and relay-sink links, simulation results are given for the frame erasure rate versus the corresponding erasure probabilities. We observe that MLT codes strongly outperform a scheme where an LT block code for every source is separately transmitted over the relay-sink erasure channel. This is due to the increased codeword length for the MLT code-based schemes.

Original languageEnglish (US)
Title of host publication44th Annual Allerton Conference on Communication, Control, and Computing 2006
PublisherUniversity of Illinois at Urbana-Champaign, Coordinated Science Laboratory and Department of Computer and Electrical Engineering
Pages462-468
Number of pages7
ISBN (Electronic)9781604237924
StatePublished - 2006
Externally publishedYes
Event44th Annual Allerton Conference on Communication, Control, and Computing 2006 - Monticello, United States
Duration: Sep 27 2006Sep 29 2006

Publication series

Name44th Annual Allerton Conference on Communication, Control, and Computing 2006
Volume1

Other

Other44th Annual Allerton Conference on Communication, Control, and Computing 2006
CountryUnited States
CityMonticello
Period9/27/069/29/06

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Computer Networks and Communications

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