Quorum-Based Energy Conserving MACProtocols for Wireless Ad Hoc Networks

• Main Authors: I-Cheng Chou, 周易成
• Other Authors: Jang-Ping Sheu
• Format: Others
• Language: en_US
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/66165170392257778727

碩士 === 國立中央大學 === 資訊工程研究所 === 91 === The lifetime of a mobile ad hoc network (MANET) depends on the durability of the battery resource of mobile hosts. In IEEE 802.11 Power Saving Mode, a mobile host must wake up in every beacon interval to check if it needs to remain awake for that particular beacon interval. Such a scheme fails to adjust a mobile host’s sleep duration according to its traffic thereby reducing its power efficiency. This paper presents the new MAC protocols for power saving in a MANET. The essence of these protocols is a quorum-based sleep/wake-up mechanism which conserves energy by allowing mobile hosts to sleep more than one beacon interval, if they involve a few transmissions. The proposed protocols are simple and compatible to the IEEE 802.11 standard. Simulation results show that our protocols conserve more energy and extend the lifetime of a MANET without increasing packet loss ratio.