Adaptive EDCF for IEEE802.11e MAC Protocol 


Vol. 29,  No. 12, pp. 1367-1374, Dec.  2004


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  Abstract

Efforts for standardization of medium access control (MAC) protocol in IEEE802.11e have been made to support quality of service (QoS) in IEEE802 11 MAC protocol. Enhanced distributed coordination function (EDCF) of 802.11e MAC protocol is modified to support QoS for packets that have differentiated priority. However, EDCF still has the problem of throughput optimization and priority support. Therefore, we have proposed a scheme called adaptive EDCF for both supporting priority of packets and throughput optimization. We have derived the relation between the number of nodes and contention window size for throughput optimization. Based on the analytic results, we have evaluated the performance of the proposed scheme using OPNET simulations. The simulation results show that using the proposed scheme can improve the overall throughput regardless of the number of nodes and the decrement of the throughput with increasing the number of nodes can be alleviated. Additionally, we have shown that the adaptive EDCF can support priority of packets more effectively than existing EDCF.

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  Cite this article

[IEEE Style]

K. Kim, B. Kim, J. Park, J. Lee, "Adaptive EDCF for IEEE802.11e MAC Protocol," The Journal of Korean Institute of Communications and Information Sciences, vol. 29, no. 12, pp. 1367-1374, 2004. DOI: .

[ACM Style]

Kunsu Kim, Beomjoon Kim, Jungshin Park, and Jaiyong Lee. 2004. Adaptive EDCF for IEEE802.11e MAC Protocol. The Journal of Korean Institute of Communications and Information Sciences, 29, 12, (2004), 1367-1374. DOI: .

[KICS Style]

Kunsu Kim, Beomjoon Kim, Jungshin Park, Jaiyong Lee, "Adaptive EDCF for IEEE802.11e MAC Protocol," The Journal of Korean Institute of Communications and Information Sciences, vol. 29, no. 12, pp. 1367-1374, 12. 2004.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880