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

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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QMAC Protocol Supporting QoS in Wireless Sensor Networks

QoS를 지원하는 무선센서 네트워크에서의 QMAC 프로토콜

  • Published : 2007.09.30
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Abstract

In this paper we propose a QMAC to support QoS(Quality of Service) and to enhance the transmission throughput in Wireless Sensor Networks(WSNs). In the proposed QMAC, sender nodes send transmission request packets with QoS requirements to the receivers node using CSMA/CA MAC protocol. And the receiver node assigns slots according to the packet priority, network topology, and the amount of traffics using TDMA. Using QMAC we get the enhanced throughput and QoS support by lowering the duplicated slot assignment.

본 논문에서는 무선센서 네트워크에서 서비스의 질(QoS)을 지원하면서 전송 효율을 높이기 위한 무선 센서네트워크에서의 QMAC 프로토콜을 제안한다. 제안된 QMAC에서는 우선순위를 가지는 패킷 전송을 원하는 송신노드가 CSMA/CA 방식을 통하여 수신 노드에게 전송 요청을 하고, 수신 노드에서는 네트워크 토폴로지와 전송되어지는 패킷의 우선순위와 전송 트래픽 양에 따라 TDMA 방식으로 적절히 슬롯을 할당함으로 여러 수신 노드들 사이에 슬롯 중복 할당으로 인한 충돌을 낮춤으로 QoS를 지원하면서 동시에 전송효율을 높일 수 있다는 장점을 가진다.

Keywords

References

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