An advanced relaying scheme for distributed LT code systems

Young Kil Suh, Jun Heo

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

4 Citations (Scopus)


This paper describes a new relaying scheme to reduce overhead of LT coded networks. The most popular degree distribution of LT codes is robust soliton distribution (RSD) which has low decoding complexity and decoding failure probability. This paper proposes a relaying scheme that makes degree distribution of encoding symbol at the sink equal to RSD, under the assumption that the each source generates encoding symbols according to RSD. The proposed relaying scheme and the assumption are appropriate for the network model organized by two sources, one relay and multiple sinks which receive data from one source or two sources. In this paper, four operations of relay are defined and class is introduced to determine which operation is used to generate output symbols. Moreover class distribution is defined and derived to make the statistical degree distribution at sink equal to RSD. From the simulation results, it can be confirmed for ARS to reduce the overall data traffic of the network model.

Original languageEnglish
Title of host publication2011 IEEE Vehicular Technology Conference Fall, VTC Fall 2011 - Proceedings
Publication statusPublished - 2011
EventIEEE 74th Vehicular Technology Conference, VTC Fall 2011 - San Francisco, CA, United States
Duration: 2011 Sept 52011 Sept 8

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252


OtherIEEE 74th Vehicular Technology Conference, VTC Fall 2011
Country/TerritoryUnited States
CitySan Francisco, CA


  • LT codes
  • distributed LT codes
  • erasure correction
  • multi-source relay networks

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics


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