Browse > Article
http://dx.doi.org/10.6109/JKIICE.2009.13.4.759

A new MAC protocol to improve a performance in IEEE 802.11 wireless LANs  

Hwang, Gyung-Ho (한밭대학교 정보통신컴퓨터공학부 컴퓨터공학)
Abstract
A new backoff scheme for infrastructure mode in IEEE 802.11 wireless LANs is proposed to improve a performance. Each station generates a unique backoff number using total number of stations, fairness parameter included in beacon frame and an user's ID that is assigned by AP. The station sends a packet after its own backoff number of idle slots, which makes a collision free access among stations within AP's coverage. The proposed method shows better performance in the view of channel utilization and packet delay than an original IEEE 802.11 CSMA/CA backoff scheme.
Keywords
backoff; CSMA/CA; wireless LANs; IEEE 802.11;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Part11:Wireless Medium Access Control (MAC) and Physical Layer(PHY) specifications, IEEE 802.11 Std, 2007
2 Z. Haas and J. Deng, "On Optimizing the Backoff Interval for Random Access Schemes," IEEE Trans. Commun., vol. 51, no. 12, pp. 2081-2090, Dec. 2003   DOI   ScienceOn
3 F. Cali, M. Conti and E. Gregori, "Dynamic Tuning of the IEEE 802.11 Protocol to Achieve a Theoretical Throughput Limit," IEEE/ACM Trans. Networking, vol. 8, no. 6. pp. 785-799, Dec. 2000   DOI   ScienceOn
4 C. Papachristou and F. Pavlidou, "Collision- Free Operation in Ad Hoc Carrier Sense Multiple Access Wireless Networks," IEEE Commun. Lett., vol. 6, no. 8, pp. 352-354, Aug. 2002   DOI   ScienceOn
5 B. Zhou, A. Marshall and T.-H. Lee, "A k-Round Elimination Contention Scheme for WLANs," IEEE Trans. Mobile Computing, vol. 6, no. 11, pp. 1230-1244, Nov. 2007   DOI   ScienceOn
6 A. Ksentini, A. Nafaa, A. Gueroui and M. Naimi, "Deterministic Contention Window Algorithm for IEEE 802.11", IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, 2005
7 Y. Xiao, "IEEE 802.11 Performance Enhancement via Con-catenation and Piggyback Mechanism," IEEE Trans. Wireless Commun., vol. 4, no. 5, pp. 2182-2192, Sep. 2005   DOI   ScienceOn
8 G. Bianchi, "Performance Analysis of the IEEE 802.11 Distributed Coordination Function," IEEE J. Select. Areas Commun., vol. 18, no. 3, pp. 535-547, Mar. 2000   DOI   ScienceOn