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

In this paper, we propose an effective end-to-end virtual path construction system, which exploits path diversity over heterogeneous wireless networks. The goal of the proposed system is to provide a high quality live video streaming service

基于AHP分析SAW算法和TOPSIS算法在异构切换环境下的性能-AHP analysis algorithms SAW and TOPSIS algorithm performance in heterogeneous environments based switching