Power-Aware Node Deployment in Wireless Sensor Networks

Yunhuai Liu, Hoilun Ngan and Lionel M. Ni

International Journal of Distributed Sensor Networks, 2007, vol. 3, issue 2, 225-241

Abstract: Wireless sensor networks (WSNs) have attracted intense interest due to their extensible capability. In this paper, we attempt to answer a fundamental but practical question: how should we deploy these nodes. In most current designs, sensor nodes are randomly or uniformly distributed because of their simplicity. However, the node deployment has a great impact on the performance of WSNs. Instead of maintaining the coverage for some snapshots of a WSN, it is essential that we can provide a continuous coverage in the whole lifecycle of the WSN. We will exhibit the weakness of the uniform distribution by disclosing the fatal sink routing-hole problem. To address this problem, we propose a non-uniform, power-aware distribution scheme. Our analysis and simulation results show that the power-aware deployment scheme can significantly improve the long-term network connectivity and service quality.

Keywords: Wireless Sensor Networks; Node Deployment; Sensing and Connectivity Coverage (search for similar items in EconPapers)
Date: 2007
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Persistent link: https://EconPapers.repec.org/RePEc:sae:intdis:v:3:y:2007:i:2:p:225-241

DOI: 10.1080/15501320701205597

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