无线局域网中异步数据传输模式分析及其应用

Research on the Asynchronous Data Transfer Modes of Wireless LAN and its A pplication

该文在对无线局域网的拓扑结构和通信原理进行较为深刻分析的基础上,总结了基于DCF的基本异步数据传输方式的局限性,然后对用于解决其局限性而提出的RTS/CTS短帧交换方式进行了详尽的讨论,同时也讨论了碰撞避免、隐藏终端和虚拟载波监听等相关问题。最后给出了一个无线局域网在分布式交互仿真中的应用实例。

Along w it h the deep analysis of the topology structure and communication protocol of the wireless network,the limitation of the basic asynchronous data transfer method based on DCF is summarized at first.And then the RTS/CTS transmission mechanis m which is used to solve the limitation of the basic transfer method is carefull y studied.At the same time ,relevant problems are also discussed such as c ollision avoidance,hidden terminal and virtual carrier sense.At last,an exam ple of a new DIS prototype structure based on the connection of wired and wirele ss network is put forward by this paper.