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 Bursty Traffics Friendly MAC Protocol in Wireless Sensor Networks

무선센서 네트워크에서 버스티 트래픽에 적합한 MAC 프로토콜

  • Received : 2018.02.19
  • Accepted : 2018.03.20
  • Published : 2018.05.31
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Abstract

Due to the recent advances in computing, communication and micro-electromechanical technology, Wireless Sensor Networks (WSNs) applications have been extended from military to many commercial areas such as object tracking, wire detection, and vehicular sensor networks. In some applications bursty data from many sensor nodes may be generated and the generated data from the monitoring area may be sent in a limited time to the final destination, sink node. In this paper, we present a BTF-MAC protocol adequate for WSNs applications in which bursty data packets are required to be transmitted in a limited time. The BTF-MAC is a synchronous duty-cycle MAC protocol and uses a slot-reserved and operational period extension mechanism adapted to the traffics. Our numerical analysis and simulation results show that BTF-MAC outperforms other related protocols such as DW-MAC and SR-MAC in terms of energy consumption and transmission delay.

컴퓨팅, 통신, 그리고 미세 전자기계 기술의 최근 발달로 인하여 무선 센서 네트워크 응용들이 군사용으로부터 물체 추적, 화재 탐지, 그리고 차량 센서 네트워크와 같은 많은 상업적인 분야로 확산되고 있다. 어떤 응용들에서는 WSNs를 구성하고 있는 센서 노드들이 모니터링 지역에서 생산한 버스티한 데이터를 최종 목적지인 싱크 노드까지 제한된 시간 내에 전달해야 하는 경우가 있다. 본 논문에서는 제한된 시간 내에 버스티 패킷을 전달해야 하는 응용에 적합한 BTF-MAC을 제안한다. BTF-MAC 프로토콜은 동기식 듀티 사이클 MAC 프로토콜이며, 슬롯 예약 및 데이터 트래픽에 적응적으로 동작 구간을 확대하는 메커니즘을 가진다. 성능 분석 결과 BTF-MAC 프로토콜이 관련 프로토콜인 DW-MAC이나 SR-MAC 등에 비해 에너지 소모나 전송지연 비교에서 훨씬 우수한 결과를 보여준다.

Keywords

References

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