Optimal regional consecutive leader election in mobile ad-hoc networks

Hyun Chul Chung, Peter Robinson, Jennifer L. Welch

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

14 Scopus citations

Abstract

The regional consecutive leader election (RCLE) problem requires mobile nodes to elect a leader within bounded time upon entering a specific region. We prove that any algorithm requires Ω(Dn) rounds for leader election, where D is the diameter of the network and n is the total number of nodes. We then present a fault-tolerant distributed algorithm that solves the RCLE problem and works even in settings where nodes do not have access to synchronized clocks. Since nodes set their leader variable within O(Dn) rounds, our algorithm is asymptotically optimal with respect to time complexity. Due to its low message bit complexity, we believe that our algorithm is of practical interest for mobile wireless ad-hoc networks. Finally, we present a novel and intuitive constraint on mobility that guarantees a bounded communication diameter among nodes within the region of interest.

Original languageEnglish (US)
Title of host publicationProceedings of the 7th ACM SIGACT/SIGMOBILE International Workshop on Foundations of Mobile Computing, FOMC'11
Pages52-61
Number of pages10
DOIs
StatePublished - 2011
Externally publishedYes
Event7th ACM SIGACT/SIGMOBILE International Workshop on Foundations of Mobile Computing, FOMC'11 - San Jose, CA, United States
Duration: Jun 9 2011Jun 9 2011

Publication series

NameProceedings of the 7th ACM SIGACT/SIGMOBILE International Workshop on Foundations of Mobile Computing, FOMC'11

Conference

Conference7th ACM SIGACT/SIGMOBILE International Workshop on Foundations of Mobile Computing, FOMC'11
Country/TerritoryUnited States
CitySan Jose, CA
Period6/9/116/9/11

Keywords

  • distributed algorithms
  • fault-tolerance
  • leader election
  • mobile ad-hoc networks

ASJC Scopus subject areas

  • Computer Graphics and Computer-Aided Design
  • Computer Networks and Communications

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