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

MIMO-OFDM is a key technology for next-generation cellular communications (3GPP-LTE, Mobile WiMAX, IMT-Advanced) as well as wireless LAN (IEEE 802.11a, IEEE 802.11n), wireless PAN (MB-OFDM), and broadcasting (DAB, DVB, DMB). This book provides a

MIMO-OFDM is a key technology for next-generation cellular communications (3GPP-LTE, Mobile WiMAX, IMT-Advanced) as well as wireless LAN (IEEE 802.11a, IEEE 802.11n), wireless PAN (MB-OFDM), and broadcasting (DAB, DVB, DMB). This book provides a