Journal of the Institute of Electronics Engineers of Korea TC (대한전자공학회논문지TC)

The Institute of Electronics and Information Engineers (대한전자공학회)
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A Study on The Performance Analysis of IEEE 802,11 Wireless LAN

IEEE 802.11 무선 LAN의 성능분석에 관한 연구

  • Hong, Seong-Cheol (Network Research Lab, Dept.of Electronics Communication Engineering, Kwangwoon University) ;
  • Bae, Seong-Su (Network Research Lab, Dept.of Electronics Communication Engineering, Kwangwoon University) ;
  • O, Yeong-Hwan (Network Research Lab, Dept.of Electronics Communication Engineering, Kwangwoon University)
  • 홍성철 (광운대학교 전자통신공학과 통신망연구실) ;
  • 배성수 (광운대학교 전자통신공학과 통신망연구실) ;
  • 오영환 (광운대학교 전자통신공학과 통신망연구실)
  • Published : 2000.02.01
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Abstract

In this paper, IEEE 802.11 MAC layer protocol is modeled by p-persistent CSMA method. And We introduce performance analysis model based on Basic CSMA/CA protocol, CTS/RTS protocol and hidden node effect reflected Basic CSMA/CA Protocol, Which is mathematically assayed by renewal theory. In this throughput, the result shown that Basic CSMA/CA protocol is profitable when the number of active node is smaller, or the length of packet is shorter, and CTS/RTS protocol is lucrative when the number of active node is larger, or the length of packet is longer. Also the result shown that hidden node less affected when the active node has small one, rather than when the active node has larger one.

본 논문에서는 p-persistent CSMA 방식의 IEEE 802.11 MAC 계층 프로토콜을 모델링 하였다. 그리고 renewal 이론을 적용하여 수학적으로 분석한 Basic CSMA/CA 프로토콜, CTS/RTS 프로토콜 그리고 은닉 노드를 고려한 Basic CSMA/CA 등의 성능분석모델을 제안하였다. 제안한 분석 모델을 이용하여 throughput을 구한 결과, active 노드 수가 적거나 패킷의 길이가 짧을 때는 Basic CSMA/CA 프로토콜 방식이, active 노드 수가 많거나 패킷의 길이가 길 때는 CTS/RTS 프로토콜 방식이 우수하였다. 또한 active 노드 수가 적은 경우가 많은 경우 보다 은닉 노드의 영향을 적게 받았다.

Keywords

References

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