Journal of the Institute of Electronics and Information Engineers (전자공학회논문지)

The Institute of Electronics and Information Engineers (대한전자공학회)
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A CSMA/CA with Binary Exponential Back-off based Priority MAC Protocol in Tactical Wireless Networks

전술 무선망에서 2진 지수 백오프를 사용하는 CSMA/CA 기반 우선순위 적용 MAC 프로토콜 설계

  • Byun, Ae-Ran (Department of Electronics Engineering, Chungnam National University) ;
  • Son, Woong (Department of Electronics Engineering, Chungnam National University) ;
  • Jang, Youn-Seon (Department of Electronics Engineering, Chungnam National University)
  • 변애란 (충남대학교 전자공학과) ;
  • 손웅 (충남대학교 전자공학과) ;
  • 장윤선 (충남대학교 전자공학과)
  • Received : 2015.09.25
  • Accepted : 2015.11.03
  • Published : 2015.11.25
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Abstract

In network-centric warfare, the communication network has played a significant role in defeating an enemy. Especially, the urgent and important data should be preferentially delivered in time. Thus, we proposed a priority MAC protocol based on CSMA/CA with Binary Exponential Back-off for tactical wireless networks. This MAC protocol suggested a PCW(Prioritized Contention Window) with differentiated back-off time by priority and a RBR(Repetitive Back-off Reset) to reset the remaining back-off time. The results showed that this proposed MAC has higher performance than those of DCF(Distributed Coordination Function) in the transmission success rate and the number of control packet transmission by reducing the packet collision. Thus, it produced more effective power consumption. In comparison with DCF, this proposed protocol is more suitable in high-traffic network.

네트워크 중심전에서 통신망은 전쟁을 승리로 이끌기 위한 중요한 기반기술이다. 특히, 전쟁 상황에서 긴급하거나 중요한 데이터는 반드시 제시간에 전송이 되어야 한다. 본 논문에서는 개인병사 전술 무선망을 위한 BEB(Binary Exponential Back-off)를 사용한 CSMA/CA(Carrier Sensing Multiple Access/Collision Avoidance) 기반의 우선순위 매체접속제어(MAC) 프로토콜을 제안한다. 제안된 MAC 프로토콜은 우선순위가 높은 패킷의 빠른 전송을 위해 우선순위에 따른 PCW(Prioritized Contention Window)를 적용하였고, 남은 back-off 시간을 초기화하기 위해 RBR(Repetitive Back-off Reset)을 제안한다. 제안 된 MAC 프로토콜은 전송 성공률과 컨트롤 패킷의 전송량 측면에서 패킷 충돌을 줄여주기 때문에 DCF(Distributed Coordination Function) 기반의 다른 MAC 프로토콜보다 높은 수율 성능을 보여준다. 따라서, DCF와 비교하였을 때, 제안하는 MAC 프로토콜은 트래픽이 많은 네트워크 환경에서 더욱 효율적으로 에너지를 이용할 수 있다.

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