Energy efficiency of dense wireless sensor networks: To cooperate or not to cooperate

Tony Q.S. Quek, Moe Z. Win, Davide Dardari

研究成果: Conference contribution

4 引文 斯高帕斯(Scopus)

摘要

Decentralized detection in a network of wireless sensor nodes involves the fusion of information about a phenomenon of interest (POI) from geographically dispersed nodes. In this paper, we investigate a binary decentralized detection problem in a dense wireless sensor network. We consider a scenario in which sensor observations, conditioned on the alternate hypothesis, are independent but not identically distributed across the sensor nodes. We consider two different fusion architectures, namely, the parallel fusion architecture and the cooperate fusion architecture. For each architecture, we derive expressions for the probability of decision error at the fusion center. We analyze the impact of a realistic sensing model, and flooding protocol on the system reliability and energy consumption for both architectures. We demonstrate that a trade-off exists among spatial diversity gain, average energy consumption, node density, and POI intensity in the cooperative architecture.

原文English
主出版物標題2006 IEEE International Conference on Communications, ICC 2006
頁面4479-4484
頁數6
DOIs
出版狀態Published - 2006
事件2006 IEEE International Conference on Communications, ICC 2006 - Istanbul, Turkey
持續時間: 2006 七月 112006 七月 15

出版系列

名字IEEE International Conference on Communications
10
ISSN(列印)0536-1486

Other

Other2006 IEEE International Conference on Communications, ICC 2006
國家Turkey
城市Istanbul
期間06-07-1106-07-15

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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