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Volume 27 Issue 8
Aug.  2005
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Yan Shao-hu, Zhuo Yong-ning, Wu Shi-qi, Guo Wei. Priority BackoffAlgorithm for IEEE 802.11 DCF[J]. Journal of Electronics & Information Technology, 2005, 27(8): 1315-1319.
Citation: Yan Shao-hu, Zhuo Yong-ning, Wu Shi-qi, Guo Wei. Priority BackoffAlgorithm for IEEE 802.11 DCF[J]. Journal of Electronics & Information Technology, 2005, 27(8): 1315-1319.

Priority BackoffAlgorithm for IEEE 802.11 DCF

  • Received Date: 2004-03-08
  • Rev Recd Date: 2004-08-11
  • Publish Date: 2005-08-19
  • A Priority BackoffAIgorithm (PBA) for IEEE 802.11 DCF is presented in this paper. The basic idea of PBA is each station should collect statistical data of other stations' transmission while sensing the channel, and maintaining a sent data table for all stations in network. When the station has data to transmit, it will calculate contention window based on the statistical data in sent data table and its own priority. Computer simulationproves that PBA can properly assign network capacity among stations in proportion to their priorities as well as enhance the network saturation throughput.
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  • Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications, IEEE Standard 802.11- 1999, IEEE Computer Society LAN MAN Standards Committee, Ed., 1999.[2]Binachi G. Performance Analysis of the IEEE 802.11 distributed coordination function. IEEE J. on Selected 4reas in Comm.,2000, 18(3): 535- 547.[3]Tay Y C, Chua K C. A capacity analysis for the IEEE 802.11MAC protocol. Wireless Networks, 2001, 7(2): 159 - 171.[4]Natkaniec M, Pach A R. An analysis of the backoff mechanism used in IEEE 802.11 networks, Proceedings of Fifth IEEE Symposium on Computers and Communications, ISCC 2000,Antibes, France, July, 2000:444 - 449.[5]Byung-Jae K, Nah-Oak S, Miller L E. Analysis of the stability and performance of exponential backoff. Wireless Communications and Networking Conference, WCNC 2003, New Orleans,Louisiana, USA, 16-20 Mar. 2003, Vol. 3:1754 - 1759.[6]Bononi L, Conti M, Gregori E. Design and performance evaluation of an asymptotically optimal backoff algorithm for IEEE 802.11 wireless LANs. Proceedings of HICSS-33, Maui,Hawaii, Jan. 4-7, 2000:3049 - 3058.[7]Bharghavan V.[J].Demaers A, Shenker S, Zhang L. MACAW: A media access protocol for wireless LANs. Proceedings of ACM SIGCOMM94, London, UK, Aug. 31-Sep.1994,2:-[8]Yang Xiao. Backoff-based Priority Schemes for IEEE 802.11.IEEE International Conference on Communications, ICC 2003,11-15 May, 2003, Vol.3:1568 - 1572.[9]Yan Shaohu, Zhuo Yongning, Wu Shiqi, Guo Wei. Adaptive RTS threshold for maximum network throughput in IEEE 802.11DCF, Proceedings of SPIE, the International Society for Optical Engineering, 2004, Vol. 5284:332 - 343.[10]http:∥www.isi.edu/nsnam/and related web pages it linked.
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