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An Efficient Multibit Aggregation Scheme for Multihop Wireless Sensor Networks

Abstract

A single-hop wireless sensor network for distributed detection has been considered in the majority of the existing literature. However, a wireless sensor network for an event detection application with cheap and short range sensors is likely to be a multihop network. Here we consider a distributed detection problem in a multihop wireless sensor network with tree topology. We propose an optimum multibit decision fusion rule derived from the previously known optimum likelihood ratio for a single-hop network with star topology. Subsequently, we present an efficient multibit decision fusion rule for a multihop wireless sensor network with tree topology. Through numerical results, the proposed scheme is shown to achieve a significant improvement in detection accuracy over existing distributed detection schemes.

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Correspondence to Bhushan G. Jagyasi.

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Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License (https://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Jagyasi, B.G., Dey, B.K., Merchant, S.N. et al. An Efficient Multibit Aggregation Scheme for Multihop Wireless Sensor Networks. J Wireless Com Network 2008, 649581 (2009). https://doi.org/10.1155/2008/649581

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  • DOI: https://doi.org/10.1155/2008/649581

Keywords

  • Wireless Sensor Network
  • Short Range
  • Event Detection
  • Tree Topology
  • Detection Scheme