PEAS: A Robust Energy Conserving Protocol for Long-lived Sensor Networks

  • Authors:
  • Fan Ye;Gary Zhong;Jesse Cheng;Songwu Lu;Lixia Zhang

  • Affiliations:
  • -;-;-;-;-

  • Venue:
  • ICDCS '03 Proceedings of the 23rd International Conference on Distributed Computing Systems
  • Year:
  • 2003

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Abstract

In this paper we present PEAS, a robust energy-conserving protocol that can build long-lived, resilientsensor networks using a very large number of small sensors with short battery lifetime. PEAS extends the network lifetime by maintaining a necessary set of workingnodes and turning off redundant ones. PEAS operations are based on individual node's observation of thelocal environment and do not require anynode to maintain per neighbor node state. PEAS performance possesses a high degree ofrobustness in the presence of bothnode power depletions and unexpected failures. Oursimulations and analysis show that PEAS can maintain an adequate working node density in the face ofup to 38% node failures, and it can maintain roughly aconstant overhead level under various deployment conditions ranging from sparse to very dense node deployment by using less than 1% of total energy consumption. As a result, PEAS can extend a sensor network'sfunctioning time in linear proportion to the deployedsensor population.