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Please use this identifier to cite or link to this item: http://hdl.handle.net/1783.1/3281
Title: A new MAC protocol design for long-term applications in wireless sensor networks
Authors: Liu, Yunhuai
Ni, Lionel M.
Keywords: MAC protocol
Wireless sensor networks
Low power transmissions
Advertisement mechanism
Issue Date: 2007
Citation: Proceedings 2007 International Conference on Parallel and Distributed Systems. Hsinchu, Taiwan, 5-7 December 2007
Abstract: This paper presents the design, implementation and performance evaluation of a new MAC protocol, called A-MAC, for wireless sensor networks. A-MAC combines the strengths of TDMA and CSMA to achieve the goal of low power transmissions for long-term surveillance and monitoring applications, where sensor nodes are typically vigilant for a long time and inactive most of the time until some event is detected. A-MAC employs an advertisement mechanism to eliminate collisions and reduce the overhearing and idle listening, which are the major energy wastes in wireless sensor networks. The distinctive feature of A-MAC is that a node needs to be active only when necessary as it is the transmitter or the receiver. During other times it can safely turn off its radio. Furthermore, to meet different application requirements, A-MAC supports two operation modes by which nodes can adaptively switch their operation modes according to the instant requirements and conditions of the network. A-MAC is implemented in TinyOS. By comparing A-MAC with existing MAC protocols, we show that A-MAC presents significant improvements in terms of power consumption and throughput.
Rights: © 2007 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.
URI: http://hdl.handle.net/1783.1/3281
Appears in Collections:CSE Conference Papers

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