A two-phase algorithm for network coding enabled cellular systems

June Hwang, Seong Lyun Kim

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

2 Citations (Scopus)

Abstract

We consider spectral and energy efficiency achieved by a novel relay communication in a cellular system, in which the so-called relay-beneficial mobile nodes communicate with base stations through appropriate relay nodes. The relay node uses the network coding to mix up- and downlink traffic; moreover, the mobile nodes and base stations adopt Maximal Ratio Combining (MRC) scheme to take advantage of cooperative transmission. For this system, we derive an information-theoretical condition, under which the cooperative transmission (combined with network coding) is more beneficial than the direct transmission. Using that condition, we suggest a two-phase algorithm to select the relay nodes (Phase 1) and to determine the transmission powers of those relay nodes (Phase 2). The numerical examples using this algorithm show improved energy efficiency compared to a plain system.

Original languageEnglish
Title of host publicationIWCMC 2007
Subtitle of host publicationProceedings of the 2007 International Wireless Communications and Mobile Computing Conference
Pages73-78
Number of pages6
DOIs
Publication statusPublished - 2007
EventIWCMC 2007: 2007 International Wireless Communications and Mobile Computing Conference - Honolulu, HI, United States
Duration: 2007 Aug 122007 Aug 16

Publication series

NameIWCMC 2007: Proceedings of the 2007 International Wireless Communications and Mobile Computing Conference

Other

OtherIWCMC 2007: 2007 International Wireless Communications and Mobile Computing Conference
CountryUnited States
CityHonolulu, HI
Period07/8/1207/8/16

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Software
  • Electrical and Electronic Engineering

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