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An adaptive quorum-based energy conserving protocol for IEEE 802.11 ad hoc networks

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3 Author(s)
Chih-Min Chao ; Dept. of Comput. Sci. & Eng., Nat. Taiwan Ocean Univ., Taiwan ; Jang-Ping Sheu ; I-Cheng Chou

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.

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Mobile Computing, IEEE Transactions on  (Volume:5 ,  Issue: 5 )