This indispensable book provides you with the key practical tools and background knowledge for deploying WiFi networks, as well as a solid appreciation of the emerging technologies. Thirty-eight self-contained contributions written by CTOs, prominent academic-based researchers, and industry leaders set out the physical and engineering principles underpinning the latest developments, and examine future potential. Topics covered include quality of service, security, high throughput 802.11, WLAN/cellular interworking, coexistence, network and radio research management, hardware design, hotspots, and public wireless broadband. Future WiFi standards and technologies, including the new 802.11 initiatives - 802.11s, 802.11n and 802.11k - are addressed, as are the various Wi Fi applications. Other emerging WiFi technologies covered include MIMO systems, intelligent (cognitive) systems, multihop (mesh) networks, WiFi sensors, WiFi RFID, WiFi mixed-mobile convergence, and long-range WiFi. This is an invaluable resource for researchers and graduate students in electrical engineering and computer science departments, as well as practitioners in the wireless communications industry.