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Power Saving MAC Protocols for Multihop Ad-Hoc Networks

  • Director, IIIT Kottayam, Kerala, India Institute of National Importance


Energy efficient protocols are important in ad-hoc networks since battery life for wireless devices is limited. The IEEE 802.11 protocol specifies a simple power save mechanism (PSM) to conserve energy. Packets are advertised for a fixed length of time, known as an advertisement window, at epochs known as beacon intervals. However, the protocol needlessly wastes energy when traffic is relatively light in a network. This paper summarizes new techniques and schemes that are not based on the IEEE 802.11 standard. It also includes the classification of MAC protocols used in ad-hoc networks.
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