ABSTRACT
In the last few years, many wireless connectivity standards and technologies have emerged. These technologies enable users to connect a wide range of computing and telecommunications devices easily and simply, without the need to buy, carry, or connect cables. These technologies deliver opportunities for rapid ad hoc connections and the possibility of automatic, unconscious connections between devices. They will virtually eliminate the need to purchase additional or proprietary cabling to connect individual devices, thus creating the possibility of using mobile data in a variety of applications. Wired local area networks (LANs) have been very successful in the last few years, and now with the help of these wireless connectivity technologies, wireless LANs (WLANs) have started emerging as much more powerful and flexible alternatives to the wired LANs. Until a year ago, the speed of the WLAN was limited to two megabits per second (Mbps), but with the introduction
of these new standards, we are seeing WLANs that can support up to eleven Mbps in the Industrial, Scientific, and Medical (ISM) band.
