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A Modified PTW Wakeup Scheme for Performance Enhancement in Wireless Sensor Network  

Kim Seong-Cheol (상명대학교 소프트웨어학부)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.10, no.8, 2006 , pp. 1380-1385 More about this Journal
Abstract
A Pipelined Tone Wakeup(PTW) scheme(1) was proposed to support energy saving and end-to-end delay for sensor networks by providing an asynchronous wakeup pipeline to overlap the wakeup procedures with the packet transmission. But the scheme uses two radios and assumes error-free environments. In this paper, we propose a modified PTW scheme for wireless sensor networks. The proposed scheme is based on the PTW. The difference is that next hop information will be included in the ack packet from receiver node to sender node, So all the other neighbor nodes can stay in sleep mode long enough to save energy. Also ore get enhanced delay performance.
Keywords
Wireless Sensor Networks(WSN); MAC protocol; Energy Saving;
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