Power-efficient communication algorithms for wireless mobile sensor networks

  • Authors:
  • Chuan-Ming Liu;Chuan-Hsiu Lee;Li-Chun Wang

  • Affiliations:
  • National Taipei Univ. of Tech., Taipei, Taiwan;National Taipei Univ. of Tech., Taipei, Taiwan;National Chiao-Tung University, Hsin-Chu, Taiwan

  • Venue:
  • PE-WASUN '04 Proceedings of the 1st ACM international workshop on Performance evaluation of wireless ad hoc, sensor, and ubiquitous networks
  • Year:
  • 2004

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Abstract

One important issue in wireless sensor networks is how to gather sensed information in an energy efficient way since the energy is a scarce resource in a sensor node. Many protocols have been proposed for data-gathering between wireless sensor nodes. However, most of these protocols work on static wireless sensor networks. In this paper, we provide clustering-based and time-driven protocols which minimize energy dissipation for data-gathering in wireless mobile sensor networks where the sensor nodes are capable of mobility. We first consider the node mobility when organizing clusters. Our protocols will have a sensor node select a proper cluster-head to join in order to save energy. We then consider how to elect the cluster-heads and provide two algorithms for cluster-head election. Last, we implement all the protocols and perform the experiments for evaluating the protocols.