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A Developed Collision Resolution Algorithm in MAC Protocol for IEEE 802.11b Wireless LANs  

Pan Ce (Kunsan National University)
Park Hyun (Chonbuk National University)
Kim Byun-Gon (Chonbuk National University)
Chung Kyung-Taek (Chonbuk National University)
Chon Byoung-Sil (Chonbuk National University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.41, no.6, 2004 , pp. 33-39 More about this Journal
Abstract
Design of efficient Medium Access Control (MAC) protocols with both high throughput performances is a major focus in distributed contention based MAC protocol research. In this paper, we propose an efficient contention based MAC protocol for wireless Local Area Networks, namely, the Developed Collision Resolution (DCR) algorithm. This algorithm is developed based on the following innovative ideas: to speed up the collision resolution, we actively redistribute the backoff timers for all active nodes; to reduce the average number of idle slots, we use smaller contention window sizes for nodes with successful packet transmissions and reduce the backoff timers exponentially fast when a fixed number of consecutive idle slots are detected. We show that the proposed DCR algorithm provides high throughput performance and low latency in wireless LANs.
Keywords
MAC; Backoff; DCR algorithm;
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  • Reference
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