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Interference-Aware Fault-Tolerant Energy Spanner in Wireless Ad Hoc Networks

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  • Dong Wang
  • Wang-Chen Long
  • Xiao-Hong Li

Abstract

Power assignment in wireless ad hoc networks is an important issue of topology control which assigns power for each wireless node so that the induced communication graph satisfies some desired properties such as the connectivity and the energy spanner. In this paper, we study the problem of power assignment in order that its induced communication graph meets the following properties: (1) it is an energy- t -spanner which is energy efficient; (2) it is k -fault resistant which can withstand up to k - 1 node failures where k   ⩾  1; (3) the interference is minimal. We propose algorithms to address this problem. Both the theoretic analysis and the simulations in the paper prove that our algorithms can induce a k -fault resistant energy spanner and furthermore the interference is minimized. To the best of our knowledge, this is the first paper to study the power assignment problem simultaneously considering spanner properties, the fault tolerance, and the interference reduction.

Suggested Citation

  • Dong Wang & Wang-Chen Long & Xiao-Hong Li, 2012. "Interference-Aware Fault-Tolerant Energy Spanner in Wireless Ad Hoc Networks," International Journal of Distributed Sensor Networks, , vol. 8(12), pages 235374-2353, December.
    • Handle: RePEc:sae:intdis:v:8:y:2012:i:12:p:235374
    DOI: 10.1155/2012/235374
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