Journal of the Korea Institute of Information and Communication Engineering (한국정보통신학회논문지)

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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A Modified PTW Wakeup Scheme for Performance Enhancement in Wireless Sensor Network

무선 센서 네트워크에서 성능향상을 위한 수정된 PTW Wakeup 구조

  • 김성철 (상명대학교 소프트웨어학부)
  • Published : 2006.08.01
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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.

Pipelined Tone Wakeup(PTW) 구조(1)는 패킷 전송에 있어서 비동기 wakeup 파이프라인을 제공을 통하여 wakeup 절차를 중복함으로써 센서 네트워크에서 에너지 절약과 종단간의 지연을 지원하기 위해 제안되었다. 그러나 PTW 구조는 2개의 radios를 사용하고 에러가 없는 환경을 가정한다. 본 논문에서는 전송 노드와 수신 노드사이에 주고 받는 패킷의 적은 수정을 통하여 지연 및 에너지 절약을 얻을 수 있는 수정된 PTW 구조를 제안한다.

Keywords

References

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