无线Mesh网中实时数据业务仿真与.pdfVIP

2012年第03期，第45卷 通 信 技 术 Vol.45，No.03,2012 总第 243期 Communications Technology No.243,Totally 无线Mesh网中实时数据业务仿真与分析 樊 鹭， 白 勇 （海南大学 信息科学与技术学院，海南 海口 570228） 【摘 要】无线 Mesh 网络是一种架构式多跳无线网络，具有结构灵活、快速部署、自组织和自愈合等 优点，具有广泛的应用前景。通过采用 ns-2 仿真软件对基于 IEEE 802.11 MAC 协议和 AODV 路由协议的无 线 Mesh 网中实时数据业务的数据传输进行建模与仿真，分析了 Mesh 网络中数据流经过的传输跳数与吞吐 率的关系，以及 MAC 层 RTS/CTS、重传次数以及 MAC 层和路由层相互作用对无线 Mesh 网中实时数据业务性 能的影响，指出了提高无线 Mesh网中实时数据业务性能的所需要的改进方向。 【关键词】无线 Mesh网；IEEE 802.11；按需距离矢量路由 【中图分类号】TP393.1 【文献标识码】A 【文章编号】1002-0802(2012)03-0069-03 Simulation and Analysis of Real-time Data Service in Wireless Mesh Network FAN Lu， BAI Yong （College of Information Science and Technology, Hainan University, Haikou Hainan 570228, China） 【Abstract】Wireless Mesh network is an architectural multi-hop wireless network, and for its advantages of flexible architecture, rapid deployment, self-organization and self-healing, has broad and promising application prospects. The real-time data service in wireless Mesh network is modeled and simulated with ns-2 simulation software and IEEE 802.11 MAC and AODV routing protocol. The relationship between the transmission of data flow through the hops and throughput, the impacts of RTS/CTS, retransmission times in MAC layer and the interactions of MAC layer and routing layer on the performance of real-time data service are analyzed, and the potential approaches to enhanceing the performance of real-time data service in wireless Mesh network are discussed.