Topology Maintenance: Extending the Lifetime of Wireless Sensor Networks

Pedro M. Wightman, Miguel A. Labrador

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

16 Scopus citations

Abstract

Topology control is a well-known strategy to save energy and extend the lifetime of wireless sensor networks. In the literature, it is usually referred as the process that, given a set of nodes, builds a reduced topology that still guarantees connectivity and coverage. Here, we extend this definition. We consider topology control as two processes: topology construction and topology maintenance. Topology construction encompasses those algorithms that build the reduced topology. Topology maintenance is the process that changes the reduced topology from time to time when the current one is no longer optimal. In this paper we define topology maintenance and present different strategies and triggering criteria that can be used to switch the network topology. We also implement static and dynamic global topology maintenance strategies using two well-known topology construction algorithms and time- and energy-based triggering criteria, and compare their performance via simulations on sparse and dense networks. Our results demonstrate that the appropriate use of topology maintenance techniques extends the network lifetime versus the option of not doing topology maintenance at all. In sparse networks, while dynamic global techniques improve the network lifetime, static techniques may improve or degrade the performance. However, all results are fairly similar. On the other hand, topology maintenance is very well justified in dense networks where important performance improvements can be achieved. In this case, the superiority of dynamic global techniques is evident, and even more as the density of the network increases.

Original languageEnglish (US)
Title of host publication2009 IEEE Latin-American Conference on Communications, LATINCOM '09 - Conference Proceedings
DOIs
StatePublished - 2009
Externally publishedYes
Event2009 IEEE Latin-American Conference on Communications, LATINCOM '09 - Medellin, Colombia
Duration: Sep 10 2009Sep 11 2009

Publication series

Name2009 IEEE Latin-American Conference on Communications, LATINCOM '09 - Conference Proceedings

Conference

Conference2009 IEEE Latin-American Conference on Communications, LATINCOM '09
Country/TerritoryColombia
CityMedellin
Period9/10/099/11/09

All Science Journal Classification (ASJC) codes

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

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