An Adaptive Quorum-Based Energy Conserving Protocol for IEEE 802.11 Ad Hoc Networks

  • Authors:
  • Chih-Min Chao;Jang-Ping Sheu;I-Cheng Chou

  • Affiliations:
  • IEEE;IEEE;-

  • Venue:
  • IEEE Transactions on Mobile Computing
  • Year:
  • 2006

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Abstract

The lifetime of a mobile ad hoc network (MANET) depends on the durability of the mobile hosts' battery resources. In the IEEE 802.11 Power Saving Mode, a host must wake up at every beacon interval, to check if it should remain awake. Such a scheme fails to adjust a host's sleep duration according to its traffic, thereby reducing its power efficiency. This paper presents new MAC protocols for power saving in a single hop MANET. The essence of these protocols is a quorum-based sleep/wake-up mechanism, which conserves energy by allowing the host to sleep for more than one beacon interval, if few transmissions are involved. The proposed protocols are simple and energy-efficiency. Simulation results showed that our protocols conserved more energy and extended the lifetime of a MANET.