作者投稿和查稿 主编审稿 专家审稿 编委审稿 远程编辑

计算机工程 ›› 2019, Vol. 45 ›› Issue (8): 135-140. doi: 10.19678/j.issn.1000-3428.0051676

• 移动互联与通信技术 • 上一篇    下一篇

NS-3仿真环境中IEEE802.11服务区分机制的研究

顾洁1, 朱宗卫2,3, 徐友庆2,3, 周世斌4a, 李奥5b, 张国鹏4a   

  1. 1. 空军勤务学院 教研保障中心, 江苏 徐州 221001;
    2. 中国科学技术大学 软件学院, 合肥 230051;
    3. 中国科学技术大学 苏州研究院, 江苏 苏州 215123;
    4. 中国矿业大学 a. 计算机科学与技术学院;b. 信息与控制工程学院, 江苏 徐州 221116
  • 收稿日期:2018-05-28 修回日期:2018-08-23 出版日期:2019-08-15 发布日期:2019-08-08
  • 作者简介:顾洁(1984-),女,讲师、硕士,主研方向为移动计算、无线传感器网络;朱宗卫(通信作者),讲师、博士;徐友庆,硕士;周世斌,讲师、博士;李奥,硕士研究生;张国鹏,副教授、博士。
  • 基金资助:
    国家自然科学基金(61471361);综合业务网国家重点实验室开放课题(ISN-2015-03)。

Research on IEEE 802.11 Service Differentiation Mechanism in NS-3 Simulation Environment

GU Jie1, ZHU Zongwei2,3, XU Youqing2,3, ZHOU Shibin4a, LI Ao5b, ZHANG Guopeng4a   

  1. 1. Teaching and Research Support Center, Air Force Logistics University, Xuzhou, Jiangsu 221001, China;
    2. School of Software Engineering, University of Science and Technology of China, Hefei 230051, China;
    3. Suzhou Research Institute, University of Science and Technology of China, Suzhou, Jiangsu 215123, China;
    4a. School of Computer Science and Technology;4b. School of Information and Control Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China
  • Received:2018-05-28 Revised:2018-08-23 Online:2019-08-15 Published:2019-08-08

摘要: 无线局域网采用IEEE 802.11协议无法向不同类型的数据流提供有区分的服务质量,而IEEE 802.11e服务区分机制EDCA存在数据流传输不公平性的问题。为此,运用NS-3网络仿真器实现一种改进的服务区分机制F-DCF。针对每个单独的节点给出排队规则,以保证节点内的公平传输机会,并通过使用基于竞争的接入方法设计实现多个节点之间的公平信道接入机制。仿真结果表明,与传统EDCA机制相比,F-DCF机制可对网络中不同优先级的数据流提供比例公平性的服务质量区分,并能够提高网络的总吞吐量。

关键词: 无线局域网, IEEE 802.11协议, 网络服务区分, 比例公平性, NS-3网络仿真器

Abstract: The Wireless Local Area Network(WLAN) adopting the IEEE 802.11 protocol cannot provide differentiated quality of service to different types of data streams,and the IEEE 802.11e service differentiation mechanism EDCA exists the unfairness problem in data stream transmission.Therefore,this paper uses the NS-3 network simulator to implement an improved service differentiation mechanism F-DCF.A queuing rule is given for each individual node to ensure fair transmission opportunities within the node,and a fair channel access mechanism between multiple nodes is designed and implemented by using a contention based access method.Simulation results show that compared with the traditional EDCA mechanism,the F-DCF mechanism can provide proportional fairness of service quality differentiation for different priority data flows in the network,and can improve the total throughput of the network.

Key words: Wireless Local Area Network(WLAN), IEEE 802.11 protocol, network service differentiation, proportional fairness, NS-3 network simulator

中图分类号: