Topology Control Protocols to Conserve Energy in Wireless Ad Hoc Networks

Ya Xu, Solomon Bien, Yutaka Mori, John Heidemann, Deborah Estrin, Alberto Cerpa

Abstract

In wireless ad hoc networks and sensor networks, energy use is in many cases the most important constraint since it corresponds directly to operational lifetime. This paper presents two topology control protocols that extend the lifetime of dense ad hoc networks while preserving connectivity, the ability for nodes to reach each other. Our protocols conserve energy by identifying redundant nodes and turning their radios off. Geographic Adaptive Fidelity (GAF) identifies redundant nodes by their physical location and a conservative estimate of radio range. Cluster-based Energy Conservation (CEC) directly observes radio connectivity to determine redundancy and so can be more aggressive at identifying duplication and more robust to radio fading. We evaluate these protocols through analysis, extensive simulations, and experimental results in two wireless testbeds, showing that the protocols are robust to variance in node mobility, radio propagation, node deployment density, and other factors.

Availability

PDF

Reference

Ya Xu, Solomon Bien, Yutaka Mori, John Heidemann, Deborah Estrin, Alberto Cerpa, "Topology Control Protocols to Conserve Energy in Wireless Ad Hoc Networks," CENS Technical Report 0006, pp. 1--37, Center of Embedded Networked Systems (CENS), University of California, Los Angeles, January, 2003.

Bibtex

@TechReport{Xu03a,
  author =       "Ya Xu and Solomon Bien and Yutaka Mori and John
                 Heidemann and Deborah Estrin and Alberto Cerpa",
  title =        "Topology Control Protocols to Conserve Energy in
                 Wireless Ad Hoc Networks",
  institution =  "Center of Embedded Networked Systems (CENS),
                 University of California, Los Angeles",
  year =         "2003",
  number =       "CENS Technical Report 0006",
  pages =        "1--37",
  month =        jan,
  URL =          "http://www.andes.ucmerced.edu/papers/Xu03a.pdf",
  cited =        "258",
}

Copyright

This paper is copyright © 2003 by its authors. Permission to make digital or hard copies of part or all of this work for personal use is granted without fee provided that copies are not made or distributed for profit or commercial purposes. New copies must bear this notice and the full citation on the first page. Abstracting with credit is permitted. To copy otherwise, to republish, to post on servers or to redistribute to lists, requires prior specific permission of the authors.