The Journal of the Institute of Internet, Broadcasting and Communication (한국인터넷방송통신학회논문지)

The Institute of Internet, Broadcasting and Communication (한국인터넷방송통신학회)
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Throughput Analysis Based on Collision Probability in 802.11 Networks

802.11 네트워크의 충돌확률 기반 성능 분석

  • Jin, Hyun-Joon (Dept. of Information and Communication Eng. Hoseo University) ;
  • Song, Myong-Lyol (Dept. of Information and Communication Eng. Hoseo University)
  • 진현준 (호서대학교 정보통신공학과) ;
  • 송명렬 (호서대학교 정보통신공학과)
  • Received : 2014.03.31
  • Accepted : 2014.04.11
  • Published : 2014.04.28
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Abstract

IEEE 802.11 Wireless LAN Medium Access Control(MAC) supports two transmission methods, a DCF basic and a RTS/CTS in contention-based access. Even though the RTS/CTS method has been optionally introduced to solve the hidden terminal problem, it is able to produce better performance in some network environments than the basic transmission method. In this paper, the collision probability of wireless channel is mathematically analyzed and applied to measure network throughput using real transmission parameters so that a reference value between throughputs of two methods is obtained. We also confirmed that control signal rates affect overall network throughput and evaluated network throughputs considering collision probability, number of stations, and contention window size of Backoff between two methods respectively.

IEEE 802.11 무선 LAN MAC 계층의 경쟁 기반 데이터 전송 방식에는 DCF 기본 전송 방식과 RTS/CTS 전송 방식이 있다. RTS/CTS 전송은 Hidden Terminal 문제를 해결하기 위한 방식이지만 네트워크 환경에 따라 정상 상태에서 기본 전송 방식보다 향상된 성능을 보이기도 한다. 본 논문에서는 무선 채널의 전송 충돌 확률을 수치적으로 해석하고 이를 실제 전송 파라미터에 적용하여 두 전송 방식의 성능에 차이를 보이는 기준 충돌 확률 값을 구하였다. 또한 전송 패킷의 컨트롤 신호 속도가 전체 네트워크 성능에 커다란 영향을 미치는 것을 확인하고 이를 충돌 확률, 스테이션의 수, 그리고 Backoff 동작 시 Contention Window Size를 고려하여 두 전송 방식의 성능을 분석하였다.

Keywords

References

  1. IEEE, "IEEE 802.11: Wireless LAN Medium Access Control(MAC) and Physical Layer(PHY) Specifications", 1999.
  2. G. Berger-Sabbatel, A. Duda, O. Gaudoin, M. Heusse, F. Rousseau, "Fairness and Its Impact on Delay in 802.11 Networks", GLOBECOM 2004, IEEE 2004.
  3. G. Bianchi, I. Tinnirello, "Remarks on IEEE 802.11 DCF Performance Analysis", IEEE Communications Letters, Vol. 9, No. 8, Aug. 2005.
  4. B. Hamdaoui, M. Elaoud, P. Ramanathan, "A delay-based admission control mechanism for multimedia support in IEEE 802.11e wireless LANs", Journal of Wireless Networks, Vol. 15, pp875-886, 2009. https://doi.org/10.1007/s11276-007-0080-3
  5. G. Bianchi, L. Fratta, "Performace Evaluation and Enhancement of the CSMA/CA MAC Protocol for 802.11 Wireless LAN", in Proc. PIMRC 1996, Taipei, Taiwan, Oct. 1996, pp 392-396.
  6. G. Bianchi, "IEEE 802.11 Saturation Throughput Anlaysis", IEEE Communications Letters, Vol. 2, No. 12, Dec. 1998.
  7. E. Ziouva, T. Antonakopoulos, "CSMA/CA performance under high traffic conditions: throughput and delay analysis", Computer Communications 25, 2002, pp 313-321. https://doi.org/10.1016/S0140-3664(01)00369-3
  8. G. Berger-Sabbatel, A. Duda, M. Heusse, "Short-Term Fairness of 802.11 Networks with Several Hosts", in Proc. Sixth IFIP IEEE International Conference on Mobile and Wireless Communication Networks, Paris, France, Oct. 2004.
  9. S. Yoo, J. Choi, J. Hwang, C. Yoo, "Eliminating the Performace Anomaly of 802.11b", ICN 2005, LNCS 3421, pp 1055-1062, 2005.
  10. A. Duda, "Understanding the Performance of 802.11 Networks", in Proc. PIMRC 2008, IEEE 19th International Symposium, Sep. 2008.
  11. Y. Tay, K. Chua, "A Capacity Analysis for the IEEE 802.11 MAC Protocol", Journal of Wireless Networks, vol. 7, pp159-171, 2001. https://doi.org/10.1023/A:1016637622896
  12. J. Cho, S. Cho, K. Kang, H. Hong, "Analysis on Characteristics for Sharing Co-channel between Communication Systems", JIIBC Vol. 11, No. 4, 2011.

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