无线局域网性能参数仿真分析

Simulation and Analysis on Parameters and Performance of WLAN

无线信道由于自身的特点,在通信环境较差的情况下其通信质量尤其难以保证。在无线局域网中,通过引入数据包拆分和RTS/CTS会话机制可以对恶劣环境下的通信质量起到改善作用。利用OPNET网络仿真平台,构建了一个集中式网络,设置不同的参数运行仿真,分析包拆分和RTS/CTS会话对网络性能(吞吐量、端到端时延等)产生的影响,为无线局域网的应用开发提供了参考。

The transmission quality of wireless channel is hard to guarantee because of its characteristic, especially in the tough condition. RTS/CTS frame exchange and data packet fragmentation are used in IEEE 802.11 WLAN to guarantee the quality of the transmission. A centralized WLAN is constructed based on the OPNET Model. According to different set of parameters, the impact of RTS/CTS frame exchange and data packet fragmentation on the performance （throughput, End-to-End delay,, etc） of the network is analyzed. And valuable reference is provided for the application and exploration of WLAN.