The Reliability Performance of Wireless Sensor Networks Configured by Power-Law and Other Forms of Stochastic Node Placement(Sensor Network)(<Special Section>Networking Technologies for Mobile Internet Systems)

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概要

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• Sensor nodes are prone to failure and have limited power capacity, so the evaluation of fault tolerance and the creation of technology for improved tolerance are among the most important issues for wireless sensor networks. The placement of sensor nodes is also important, since this affects the availability of nodes within sensing range of a target in a given location and of routes to the base station. However, there has been little research on the placement of sensor nodes. Furthermore, all research to date has been based on deterministic node placement, which is not suitable when a great many sensor nodes are to be placed over a large area. In such a situation, we require stochastic node placement, where the sensor-positions are in accord with a probability density function. In this paper, we examine how fault tolerance can be improved by stochastic node placement that produces scale-free characteristics, that is, where the degree of the nodes follows a power law.

• 一般社団法人電子情報通信学会の論文
• 2004-09-01

著者

• Aida Masaki

  Ntt Information Sharing Platform Laboratories

• Ishizuka Mika

  Ntt Information Sharing Platform Laboratories Ntt Corporation

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