Energy efficient broadcast in multiradio multichannel wireless networks

Changcun Ma, Deying Li, Hongwei Du, Huan Ma, Yuexuan Wang, Wonjun Lee

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

4 Citations (Scopus)


The broadcast is a fundamental operation in computer and communication networks. We study broadcast in multiradio multichannel multi-hop wireless networks. Suppose through configuration, each node is already assigned with a transmission power level and a set of radio channels for receiving and forwarding data. Our problem is to select a forward scheme for broadcasting from a given source node and to minimize total energy consumption. This is a known NP-hard minimization problem. In this paper, we construct a polynomial-time (1.35 + ε)(1+ln(n-1))-approximation algorithm where n is the number of nodes in given network and ε is any positive constant. We also show that there is no polynomial-time (ρ ln n)-approximation for 0 < ρ < 1 unless NP ⊆ DTIME(n O(log log n)).

Original languageEnglish
Title of host publication2012 Proceedings IEEE INFOCOM, INFOCOM 2012
Number of pages9
Publication statusPublished - 2012
EventIEEE Conference on Computer Communications, INFOCOM 2012 - Orlando, FL, United States
Duration: 2012 Mar 252012 Mar 30

Publication series

NameProceedings - IEEE INFOCOM
ISSN (Print)0743-166X


OtherIEEE Conference on Computer Communications, INFOCOM 2012
Country/TerritoryUnited States
CityOrlando, FL

ASJC Scopus subject areas

  • General Computer Science
  • Electrical and Electronic Engineering


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