期刊文献+

联合竞争窗口和发送调整策略优化WLAN性能

Enhancing Performance of WLAN by Combining Contention Window and Transmitting Time Adjusting Scheme
下载PDF
导出
摘要 IEEE802.11标准中所采用的二进制指数退避机制不能够根据网络当前的碰撞情况有效地使用无线资源,该文提出一种联合竞争窗口和发送时间调整策略,其中自适应竞争窗口方法以被动的方式根据网络当前数据帧碰撞程度快速调整竞争窗口,动态数据包发送时间调整机制使节点能够主动地调节单位时间内注入队列的数据包数量。仿真结果表明,该调整机制能够根据网络状态快速地、自适应地优化节点数据包传输过程中的相关参数,提高无线资源使用率,降低数据包时延。 To improve the performance of IEEE 802.11 wireless local area network (LAN), this paper presents a novel contention aware adjusting mechanism combining adaptive contention window and random varying timing method. The adaptive contention window scheme can determine the contention window based on the collision status rapidly, and the dynamical varying timing method can make the node adjust the number of packets sending during the busy or idle period. The simulations show that our mechanism is able to optimize the parameters of packets sending, utilize the radio resource reasonably, and decrease the average packet delay obviously.
出处 《电子科技大学学报》 EI CAS CSCD 北大核心 2010年第1期33-36,共4页 Journal of University of Electronic Science and Technology of China
基金 国家自然科学基金(60772109 60972069) 重庆邮电大学博士科研启动基金(A2009-17)的资助
关键词 自适应机制 竞争窗口 随机发送时间 无线局域网 adaptive algorithm contention window random timing varying wireless local area networks
  • 相关文献

参考文献11

  • 1IEEE LAN/MAN Standards Committee. IEEE Std 802.11. Part 11: Wireless LAN medium access control (MAC) and physical layer (PHY) specifications[S]//New York, USA: IEEE Press, 2007.
  • 2GUANG L, ASSI C M. BENSLIMANE A. Enhancing IEEE 802.11 Random Backoff in Selfish Environments[J]. IEEE Transactions on Vehicular Technology, 2008, 57(3): 1806-1822.
  • 3黎宁,史诚光.一种802.11DCF性能分析的简单方法[J].电子科技大学学报,2006,35(3):339-342. 被引量:2
  • 4SAKURAI T, VU H L. MAC access delay of IEEE 802.11 DCF[J]. IEEE Transactions on Wireless Communications, 2007, 6(5): 1702-1710.
  • 5BONONI L, CONTI M. Runtime optimization of IEEE 802.11 wireless LANs performance[J]. IEEE Transactions on Parallel and Distributed Systems, 2004, 15(1): 66-80.
  • 6SONG N, KWAK B, SONG J, et al. Enhancement of IEEE 802.11 distributed coordination function with exponential increase exponential decrease backoff algorithm[C]// Proceeding of Vehicular Technology Conference. Florida: IEEE Press, 2003: 2775-2778.
  • 7XIAO Y, LI F H, WU K. On optimizing backoff counter reservation and classifying stations for the IEEE 802.11 distributed wireless LANs[J]. IEEE Transactions on Parallel and Distributed Systems, 2006, 17(7): 713-722.
  • 8WEI Z X, ZHANG H, WANG X L. Design method based on routing tree for topology update in ad hoc network[J]. Journal of Electronic Science and Technology of China, 2006, 4(3): 106-109.
  • 9王朝翔,苗建松,丁炜.模糊逻辑控制的MAC协议[J].北京邮电大学学报,2007,30(6):131-134. 被引量:3
  • 10IBRAHIM M, ALOUF S. Design and analysis of an adaptive backoff algorithm for IEEE 802.11 DCF mechanism[J]. Lecture Notes in Computer Science, 2006, 3976: 184-196.

二级参考文献10

  • 1吴克军,苏兆龙,于全.Ad Hoc网络媒体接入控制中一种新的退避算法[J].北京邮电大学学报,2005,28(5):30-33. 被引量:4
  • 2IEEE Computer Society LAN MAN Standards Committee. IEEE Std. 802.11-1999. Wireless LAN medium access control and physical layer (PHY) specifications [S]. New York: IEEE Standards Association Press, 1999.
  • 3Cali F, Conti M, Gregori E. Dynamic tuning of the IEEE 802.11 protocol to achieve a theoretical throughput limit [J]. IEEE/ACM Transactions on Networking, 2000, 8(6): 785-799.
  • 4Bianchi G.Performance analysis of the IEEE 802.11 distributed coordination function [J]. IEEE Journal on Selected Areas in Communication, 2000, 18(3): 535-547.
  • 5UCLA parallel computing laboratory and wireless adaptive mobility laboratory. GloMoSim: a scalable simulation environment for wireless and wired network systems[EB/OL].http://pcl.cs.ucla.edu/projects/glomosim, 2003-12-10.
  • 6IEEE. IEEE Std. 802.11e-2005, part 11: wireless LAN medium access control (MAC) and physical layer (PHY) specifications amendment 8: medium access control (MAC) quality of service enhancements[S]. 2005.
  • 7IEEE. IEEE Std. 802.11-1999, part 11: wireless LAN medium access control (MAC) and physical layer (PHY) specifications[S]. 1999.
  • 8Zhou Ying, Ananda A L, Jacob L. A QOS enabled MAC protocol for multi-hop Ad hoc wireless networks[C]// Conference Proceedings of the 2003 IEEE International Performance, Computing, and Communications Conference. Phoenix: IEEE Press, 2003: 149-156.
  • 9Tantra J W, Foh C H. Achieving near maximum throughput in IEEE 802.11 WLANs with contention tone[J]. IEEE Communications Letters, 2006, 10(9) : 658-660.
  • 10McCanne S, Floyd S. NS: network simulator version 2 [EB/OL]. (1995-07-31) [2007-03-06]. http://www. isi. edu/nsnam/ns.

共引文献2

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部