Randomized k-coverage algorithms for dense sensor networks

Mohamed Hefeeda, Majid Bagheri

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

113 Citations (Scopus)

Abstract

We propose new algorithms to achieve k-coverage in dense sensor networks. In such networks, covering sensor locations approximates covering the whole area. However, it has been shown before that selecting the minimum set of sensors to activate from an already deployed set of sensors is NP-hard. We propose an efficient approximation algorithm which achieves a solution of size within a logarithmic factor of the optimal. We prove that our algorithm is correct and analyze its complexity. We implement our algorithm and compare it against two others in the literature. Our results show that the logarithmic factor is only a worst-case upper bound and the solution size is close to the optimal in most cases. A key feature of our algorithm is that it can be implemented in a distributed manner with local information and low message complexity. We design and implement a fully distributed version of our algorithm. Our distributed algorithm does not require that sensors know their locations. Comparison with two other distributed algorithms in the literature indicates that our algorithm: (i) converges much faster than the others, (ii) activates near-optimal number of sensors, and (iii) significantly prolongs (almost doubles) the network lifetime because it consumes much less energy than the other algorithms.

Original languageEnglish
Title of host publicationProceedings - IEEE INFOCOM 2007
Subtitle of host publication26th IEEE International Conference on Computer Communications
Pages2376-2380
Number of pages5
DOIs
Publication statusPublished - 4 Sep 2007
EventIEEE INFOCOM 2007: 26th IEEE International Conference on Computer Communications - Anchorage, AK, United States
Duration: 6 May 200712 May 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
Period6/5/0712/5/07

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ASJC Scopus subject areas

  • Computer Science(all)
  • Electrical and Electronic Engineering

Cite this

Hefeeda, M., & Bagheri, M. (2007). Randomized k-coverage algorithms for dense sensor networks. In Proceedings - IEEE INFOCOM 2007: 26th IEEE International Conference on Computer Communications (pp. 2376-2380). [4215866] (Proceedings - IEEE INFOCOM). https://doi.org/10.1109/INFCOM.2007.284