Consisting of 25 articles contributed by expert authors from around the world, this handbook begins with a detailed introduction that provides an overview of LAN technologies, performance, security, and security protocols. It then delves further into WLAN technology, covering space-time processing, WLAN and cellular convergence, and a peer-to-peer approach to roaming, along with other topics. The Handbook continues by exploring WLAN applications, followed by an extensive discussion of security that includes the steps that can be taken to minimize WLAN security risks. This text concludes with an analysis of standards, describing 3G UMTS - IEEE 802.11b internetworking and security.