한국통신학회논문지 (The Journal of Korean Institute of Communications and Information Sciences)

한국통신학회 (The Korean Institute of Commucations and Information Sciences)
권호 표지

An Adaptive MAC Protocol considering Real Time in Wireless Sensor Networks

  • 온정석 (연세대학교 전기전자공학과 유비넷 연구실) ;
  • 김재현 (연세대학교 전기전자공학과 유비넷 연구실) ;
  • 오영열 (연세대학교 전기전자공학과 유비넷 연구실) ;
  • 이재용 (연세대학교 전기전자공학과 유비넷 연구실)
  • 발행 : 2007.12.31
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초록

Leading MAC protocols developed for duty-cycled WSNs such as B-MAC employ a long preamble and channel sampling. The long preamble introduces excess latency at each hop and suffers from excess energy consumption at non-target receivers. In this paper we propose AS-MAC (Asynchronous Sensor MAC), a low power MAC protocol for wireless sensor networks (WSNs). AS-MAC solves these problems by employing a series of preload approach that retains the advantages of low power listening and independent sleep schedule. Moreover AS-MAC offers an additional advantage such as flexible duty cycle as data rate varies. We demonstrate that AS-MAC is better performance than B-MAC through analysis and evaluation.

키워드

참고문헌

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