Power-Aware Node Deployment in Wireless Sensor Networks

  • Authors:
  • Yunhuai Liu;Hoilun Ngan;Lionel M. Ni

  • Affiliations:
  • Department of Computer Science and Engineering, Hong Kong University of Science and Technology, Hong Kong;Department of Computer Science and Engineering, Hong Kong University of Science and Technology, Hong Kong;Department of Computer Science and Engineering, Hong Kong University of Science and Technology, Hong Kong

  • Venue:
  • International Journal of Distributed Sensor Networks - Sensor Networks, Ubiquitous and Trustworthy Computing
  • Year:
  • 2007

Quantified Score

Hi-index 0.00

Visualization

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.