5th International ICST Conference on Broadband Communications, Networks, and Systems

Research Article

Collision Classification-based MAC Protocol for IEEE 802.11 Wireless Local Area Networks

  • @INPROCEEDINGS{10.1109/BROADNETS.2008.4769128,
        author={Qifei Zhang and Chao Gui and Baolin Sun},
        title={Collision Classification-based MAC Protocol for IEEE 802.11 Wireless Local Area Networks},
        proceedings={5th International ICST Conference on Broadband Communications, Networks, and Systems},
        publisher={IEEE},
        proceedings_a={BROADNETS},
        year={2010},
        month={5},
        keywords={Backoff Collision Classification Model CF-CCR},
        doi={10.1109/BROADNETS.2008.4769128}
    }
    
  • Qifei Zhang
    Chao Gui
    Baolin Sun
    Year: 2010
    Collision Classification-based MAC Protocol for IEEE 802.11 Wireless Local Area Networks
    BROADNETS
    IEEE
    DOI: 10.1109/BROADNETS.2008.4769128
Qifei Zhang1,*, Chao Gui1,*, Baolin Sun1,*
  • 1: School of Computing, Hubei University of Economics
*Contact email: cheffly@gmail.com, guichao888@vip.sina.com, blsun@163.com

Abstract

Traditional backoff algorithms in distributed contention-based MAC protocols adopt contention window scheme for collision resolution. Collided nodes are redistributed in extended windows to avoid further collision. However, collision may still occur due to intersecting window ranges. In this paper, we propose an effective backoff algorithm featuring Collision-Free Collision Classification Resolution (CF-CCR) based on collision classification model to resolve different collisions with different manners. Under the schedule of CF-CCR, the network will ultimately converges to a collision free state, in which nodes access channel sequentially with no collision occurred. The simulation results show that CF-CCR outperforms IEEE 802.11 DCF in collision times, throughput, delay and fairness.