ABSTRACT
Wireless Local Area Networks are similar to wired local area networks, the main difference being the physical medium that connects the devices. Wireless metropolitan area networks (WMANs) connect thousands of computers together in a citywide area network. A WMAN lets non-engineers take a wireless mobile device and connect it to the Internet from any place in the geographic region where a user is located. It is a fixed wireless installation that relies on backhaul connections to the network through landline services such as traditional T-1 or T-3 circuits, optical carrier connections, or high-throughput point-to-point wireless connections. Last-mile solutions have the potential to establish wireless as a substitute or replacement for residential broadband digital subscriber line/cable modems and commercial high-speed data services. The goal of the new protocol was to increase throughput for wireless networks. The specification states that 802.11n can transmit data at 54 Mbps.
