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

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Design of Receiver-Initiated Asynchronous MAC Protocol for Energy-Efficiency in WSNs

전력 효율을 위한 수신자 기반 비동기 센서 MAC 프로토콜 설계

  • Park, In-Hye (Kwangwoon University Department of Computer Engineering) ;
  • Lee, Hyung-Keun (Kwangwoon University Department of Computer Engineering)
  • Received : 2014.10.29
  • Accepted : 2014.11.11
  • Published : 2014.12.31
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Abstract

In this paper we describe an asynchronous MAC protocol with receiver-initiated duty cycling for energy-efficiency in wireless sensor networks(WSN). Legacy asynchronous MAC protocols, X-MAC and PW-MAC, has weaknesses which generates too many control packets and has data collision problem between multiple transmitters, respectively. Therefore, we propose a receiver-initiated asynchronous MAC protocol which generates control packets from transmitter to complement these disadvantages. Compared to the prior asynchronous duty cycling approaches of X-MAC and PW-MAC, the proposed protocol shows a improvement in energy-efficiency, throughput and latency from simulation results.

본 논문은 네트워크 전체의 전력 소모를 줄이기 위해 제어 패킷의 소모를 줄이는 비동기 센서 MAC 프로토콜을 설계한다. 기존 비동기 방식의 X-MAC은 너무 많은 제어 패킷을 보낸다는 단점, PW-MAC은 다중 송신자와 단일 수신자 상황에서 데이터 패킷이 충돌한다는 단점이 있다. 본 논문에서는 두 프로토콜의 단점을 보완하여 수신자 기반(Receiver-Initiated)으로 동작하며, 송신자에 의해 제어 패킷을 생성하는 MAC 프로토콜을 제안한다. 본 문에서 NS2를 이용한 실험의 결과를 통해 전력 소모, 전달 지연, 평균 처리량이 기존 연구에 비해 향상됨을 확인했다.

Keywords

References

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