Fault-tolerant relay node placement in wireless sensor networks: Problems and algorithms

Weiyi Zhang, Guoliang Xue, Satyajayant Misra

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

134 Scopus citations

Abstract

Two fundamental functions of the sensor nodes in a wireless sensor network are to sense its environment and to transmit sensed information to a basestation. One approach to prolong sensor network lifetime is to deploy some relay nodes whose main function is to communicate with the sensor nodes, other relay nodes, and the basestations. It is desirable to deploy a minimum number of relay nodes to achieve certain connectivity requirement. In this paper, we study four related fault-tolerant relay node placement problems, each of which has been previously studied only in some restricted form. For each of them, we discuss its computational complexity and present a polynomial time O(1)-approximation algorithm with a small approximation ratio. When the problem reduces to a previously studied form, our algorithm either improves the previous best algorithm or reduces to the previous best algorithm.

Original languageEnglish (US)
Title of host publicationProceedings - IEEE INFOCOM 2007
Subtitle of host publication26th IEEE International Conference on Computer Communications
Pages1649-1657
Number of pages9
DOIs
StatePublished - Sep 4 2007
EventIEEE INFOCOM 2007: 26th IEEE International Conference on Computer Communications - Anchorage, AK, United States
Duration: May 6 2007May 12 2007

Publication series

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

Other

OtherIEEE INFOCOM 2007: 26th IEEE International Conference on Computer Communications
CountryUnited States
CityAnchorage, AK
Period5/6/075/12/07

Keywords

  • Survivable relay placement
  • Wireless sensor networks

ASJC Scopus subject areas

  • Computer Science(all)
  • Electrical and Electronic Engineering

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    Zhang, W., Xue, G., & Misra, S. (2007). Fault-tolerant relay node placement in wireless sensor networks: Problems and algorithms. In Proceedings - IEEE INFOCOM 2007: 26th IEEE International Conference on Computer Communications (pp. 1649-1657). [4215775] (Proceedings - IEEE INFOCOM). https://doi.org/10.1109/INFCOM.2007.193