文章从理论上分析了IEEE802.n无线网络MAC层切换原理和

程，对几种可行的算法进行了比较，分析、计算了切换的延迟时间

提出了带优先级的选择性扫描切换算法和双网卡并行算法等改进

略。借助于开放源代码，用Linux下的wirelesstoo1s提供的A

函数，编写C程序，实现了无线MAC层的快速切换。并且在网络无

覆盖和开放认证的情况下，利用该程序对提出的几种算法分别进行

实验测试分析。

-This paper theoretically analyzes the wireless network MAC layer handoff IEEE802.n principle and process of several possible algorithms comparison, analysis, calculation of the switching delay time for the selective and priority scan and dual LAN switching algorithm Parallel algorithms to improve slightly. With open source, with Linux available under the wirelesstoo1s A function, written C program, wireless MAC layer to achieve fast switching. And no coverage in the network and open the case of certification, using this program, several algorithms were proposed for laboratory testing.