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IEEE 802.11网络中增强的退避算法 被引量:8

Enhanced Backoff Algorithm of IEEE 802.11 Network
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摘要 IEEE 802.11协议的MAC层通过二进制指数退避算法实现对媒体的争用,该文提出一种增强的退避算法,对网络中的动态站点数进行估计,自适应改变退避算法的竞争窗口,以提高网络的性能。 The MAC layer of the IEEE 802.11 standard adopts an exponential backoff scheme to access media. This paper provides an enhanced backoff scheme, which changes Contending Windows(CW) adaptively by estimating the number of active stations in network to improve the efficiency of network.
出处 《电子与信息学报》 EI CSCD 北大核心 2004年第10期1527-1533,共7页 Journal of Electronics & Information Technology
基金 国家863计划(2001AA413610)资助
关键词 IEEE 802.11 竞争窗口(CW) 吞吐量 动态站点 IEEE 802.11, Contending Windows(CW) Throughput Active stations
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参考文献7

  • 1IEEE Standard for Wireless LAN Medium Access Control(MAC) and PHYsical Layer(PHY)Specifications, Nov. 1997. P802.11.
  • 2Call F, Conti M, Gregori E. IEEE 802.11 Protocol: Design and performance evaluation of an adaptive backoff mechanism. IEEE J. on Selected Areas in Communication, 2000, 18(9): 1774-1786.
  • 3Natkaniec M, Pach A R. An analysis of the backoff mechanism used in IEEE 802.11 networks,Computers and Communications, 2000. Proceedings. ISCC 2000. Fifth IEEE Symposium 2000:444-449.
  • 4Bianchi G. Performance analysis of the IEEE 802.11 distributed coordination function. IEEE J.on Selected Areas in Communications, 2000, 18(3): 535-547.
  • 5Wu H, Cheng S, Peng Y, Long K, Ma J. IEEE 802.11 distributed coordination function(DCF):Analysis and enhancement 2002. ICC 2002. IEEE International Conference on Communications,2002, vol.1: 605-609.
  • 6Bianchi G, Fratta L, Oliveri M. Performance evaluation and enhancement of the CSMA/CA MAC protocol for 802.11 wireless LANs. IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC'96. Taipei, Taiwan, 1996, vol.2: 392-396.
  • 7Bononi L, Conti M, Gregori E. Design and performance evaluation of an asymptotically opttimal backoff algorithm for IEEE 802.11 wireless LANs, Proceedings of the 33rd Hawaii International Conference on System Sciences, Hawaii, 2000: 103-112.

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