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IEEE802.11e无线局域网中一种提高QoS的算法 被引量：1

An Algorithm for Improving QoS in IEEE802.11e WLAN
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摘要 随着无线网络的迅速发展,网络上的业务流量与日俱增,如何保证无线局域网实时业务服务质量的问题也越来越突出.在分析IEEE802.11e的MAC接入机制及其在提供QoS方面存在局限性的基础上,提出了一种增强无线局域网服务质量的新算法——PCWA算法.该算法与EDCA机制相比,明显降低实时业务平均时延,显著提高网络吞吐量. With the quick development of wireless network, the flow on the network is increasing. How to improve service quality of the real-time flows in wireless local area network is becoming more important. Based on analyzing the MAC access mechanism and the limitations of providing service quality in IEEE802.1 le WLAN, this paper proposes a new algorithm, PCWA （Practical Contention Window Adjustment） algorithm. Compared with the EDCA mechanism, the average delay for real-time flow is decreased apparently and capacity is improved by using the algorithm.
作者 汤文亮 李健
机构地区 华东交通大学信息工程学院 九江学院信息技术中心
出处 《华东交通大学学报》 2008年第5期63-66,共4页 Journal of East China Jiaotong University
基金 江西省自然科学基金资助项目(511011)
关键词 无线局域网 服务质量 PCWA IEEE802.11E WLAN QoS PCWA IEEE802.11 e
分类号 TP393.3 [自动化与计算机技术—计算机应用技术]
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参考文献5

  • 1G W Wong, R W Donaldson. Improving the QoS Performance of EDCF in IEEE 802.1 1e Wireless LANs[A]. 2003 IEEE Pacfiic - RimConf [ C]. Singapore: IEEE CS, 2003.28 - 30.
  • 2IEEE Std.802. 11eTM,Part 11 :Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications Amendment 8: Medium Access Control QoS Enhancement[ S], IEEE Computer Society, November 2005.
  • 3P. Ansel, Q. Ni, and T. Turletti. FHCF: A simple and efficient scheduling scheme for 802.11 e WLAN [ J ]. Mobile Network. Appl. ( MONET) .2006,11(3) :391 - 403.
  • 4Sunghyun Choi, Javier del Prado, SaiShankar N, Stefan Mangold. IEEE 802.11 e Contention- Based Channel Access (EDCF) Performance Evaluation[ A]. Communications, 2003. IEEE International Conference[ C ]. Florida: IEEE CS. 2003.11 - 15.
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同被引文献11

  • 1PAWELCZAK P, NOLAN K, DOYLE L, et al. Cognitive radio: Ten years of experimentation and development[J]. Communica- tions Magazine, IEEE, 2011,49(3):90-100.
  • 2WANG B, LIU K J R. Advances in cognitive radio networks: A survey[J]. Selected Topics in Signal Processing, IEEE, 2011,5(1): 5-23.
  • 3WANG W, LIB C, LIANG B. District: Embracing local market in truthful spectrum double auction[C]//Proc of the 8th Annual IEEE Conf on Sensor, Mesh and Ad Hoc Communications and Networks(SECON 2011). Piscataway, N J: IEEE, 2011:521-529.
  • 4WU G, REN P, ZHANG C. A waiting-time auction based dynamic spectrum allocation algorithm in cognitive radio networks[C]// Global Telecommunications Conference (GLOBECOM 2011), 2011 IEEE. IEEE, 2011:1-5.
  • 5YAO E, LU L, J1ANG W. An efficient truthful double spectrum auction design for dynamic spectrum access[C]//Cognitive Radio Oriented Wireless Networks and Communications (CROWNCOM), 2011 Sixth International ICST Conference on. IEEE, 20l 1: 181-185.
  • 6FENG X, CHEN Y, ZHANG J, et al. TAHES: Truthfu double auction for heterogeneous speetrums[C]//INFOCOM, 2012 Proceed- ings IEEE. IEEE, 2012:3076-3080.
  • 7HUANG H, SUN Y, XING K, et al. Truthful multi-unit double auction for spectrum allocation in wireless communications[J] Wireless Algorithms, Systems, and Applications, 2012,75:248-257.
  • 8ZHOU X, ZHENG H. TRUST: A general framework for truthful double spectrum auctions[C]//Proc of IEEE Infocom 2009. Piseat- away, IEEE,2009:999-1007.
  • 9ZHOU X, ZHANG Z, WANG G, et al. Practical conflict graphs for dynamic spectrum distribution[C]//Proceedings of the ACM Sigmetrics international conference on Measurement and modeling of computer systems. ACM, 2013:5-16.
  • 10CHAUDHURI K, GRAHAM F C, TSIATAS A. Spectral clustering of graphs with general degrees in the extended planted parti- tion model[C]//COLT. 2012:35.1-35.23.

引证文献1

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华东交通大学学报
2008年 第5期

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