An energy-efficient MAC protocol based on IEEE 802.11 in wireless ad hoc networks

doi:10.1007/s12243-011-0245-z

NHUIR > College of Science and Technology > Department of Computer Science and Information Engineering > Periodical Articles > Item 987654321/25105

Please use this identifier to cite or link to this item: http://nhuir.nhu.edu.tw/handle/987654321/25105

Title:	An energy-efficient MAC protocol based on IEEE 802.11 in wireless ad hoc networks
Authors:	吳建民;廖怡欽;柳茂林;Wu, Chien-Min;Liaw, Yi-Ching;Leou, Maw-Lin;Su, Hui-Kai
Contributors:	資訊工程學系
Keywords:	IEEE 802.11;Contention window mechanism;Ad hoc networks;ns-2;Energy goodput
Date:	2011-12
Issue Date:	2017-07-19 17:04:20 (UTC+8)
Abstract:	Energy efficiency is a measure of the performance of IEEE 802.11 wireless multihop ad hoc networks. The IEEE 802.11 standard, currently used in wireless multihop ad hoc networks, wastes bandwidth capacity and energy resources because of many collisions. Therefore, controlling the contention window size at a given node will increase not only the operating life of the battery but also the overall system capacity. It is essential to develop effective backoff schemes for saving power in IEEE 802.11 wireless multihop ad hoc networks. In this paper, we propose an energy-efficient backoff scheme and evaluate its performance in an ad hoc network. Our contention window mechanism devised by us grants a node access to a channel on the basis of the node’s percentage of residual energy. We use both an analytical model and simulation experiments to evaluate the effective performance of our scheme in an ad hoc network. Our extensive ns-2-based simulation results have shown that the proposed scheme provides excellent performance in terms of energy goodput, end-to-end goodput, and packet delivery ratio, as well as the end-to-end delay.
Relation:	annals of telecommunications-annales des télécommunications vol. 66, no. 11-12 pp.671-682
Appears in Collections:	[Department of Computer Science and Information Engineering] Periodical Articles

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