Tuesday, 22 March 2011

Bluetooth, WiMAX and Wi-Fi -- Technology and Implementation

Wireless Networks can be classified broadly as Wireless Personal-Area Networks (WPAN), Wireless LANs (WLANs), and Wireless Wide-Area Networks (WWANs). WPANs operate in the range of a few feet, whereas WLANs operate in the range of a few hundred feet and WWANs beyond that. In fact, wireless WANs can operate in a wide range--a metropolitan area, cellular hierarchy, or even in intercity links through microwave relays.
This Blog examines wireless technologies for WLAN, WPAN, and WWAN areas, with specific focus on the IEEE 802.11 WLAN (often known as Wi-Fi®), Bluetooth (BT) in the WPAN, and WiMAX for WWAN as representative technologies. It discusses key aspects of the technology--medium access and connectivity to the wired network-- and concludes by listing some common (mis)perceptions about wireless technology.