Load-based Dynamic Backoff Algorithm in Contention-based Wireless Shared Medium 


Vol. 30,  No. 6, pp. 406-415, Jun.  2005


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  Abstract

The standards which use shared medium like IEEE 802.11 wireless LAN have transmission opportunity by contention in contention period. If there are collisions in contention period, medium access control protocol may solve problem by using backoff algorithm. Backoff algorithm is important part in medium access control, but legacy backoff method which is used under IEEE 802.11 standards is not adjusted when load is heavy because of increasing collisions. In this paper, we propose a new load-based dynamic backoff algorithm in contentionbased wireless shared medium to improve throughput of medium and to reduce the number of collisions. Proposed backoff algorithm can increase the network utilization about 20% higher than that of binary exponential backoff algorithm.

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  Cite this article

[IEEE Style]

C. Seo, W. Wang, S. Yoo, "Load-based Dynamic Backoff Algorithm in Contention-based Wireless Shared Medium," The Journal of Korean Institute of Communications and Information Sciences, vol. 30, no. 6, pp. 406-415, 2005. DOI: .

[ACM Style]

Chang-Keun Seo, Weidong Wang, and Sang-Jo Yoo. 2005. Load-based Dynamic Backoff Algorithm in Contention-based Wireless Shared Medium. The Journal of Korean Institute of Communications and Information Sciences, 30, 6, (2005), 406-415. DOI: .

[KICS Style]

Chang-Keun Seo, Weidong Wang, Sang-Jo Yoo, "Load-based Dynamic Backoff Algorithm in Contention-based Wireless Shared Medium," The Journal of Korean Institute of Communications and Information Sciences, vol. 30, no. 6, pp. 406-415, 6. 2005.