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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。
Wireless Mesh Network is an architecture multi-hop wireless network with the advantages of flexible structure, rapid deployment, self-organization and self-healing. It has a wide range of applications. By using ns-2 simulation software to model and simulate the data transmission of real-time data services in wireless Mesh network based on IEEE 802.11 MAC protocol and AODV routing protocol, the number of transmission hops and throughput of Mesh networks are analyzed The relationship between MAC layer and RTS / CTS, retransmission times and the interaction between MAC layer and routing layer on the performance of real-time data in wireless Mesh network are analyzed. The improvement direction of real-time data service in wireless Mesh network is pointed out.