Wireless

8 Pages 1886 Words

doing their best to implement wireless connectivity without changing the existing computer hardware. As a result, a lot of focus is on using existing computer hardware and software to convert data to a format compatible with the new hardware, which will be added to the computer using ports, or PCMCIA connections that already exist. Wireless computing applications covers three broad areas of computing today. Replacement of normal wired LAN’s need to retain the speed and reliability found in wired LAN’s. Creation of semi permanent LAN’s for quick and easy setup without the need for running wires. The last category is that of mobile computing. With advent of PCMCIA cards, notebook computers are being substituted for regular desktop machines with complete connectivity of the desktop machine. However, you lose the connectivity when out of the office unless you have a wireless means of communicating. On the compatibility issue, the ability to mix wireless brands on a single network is not likely to come soon. The IEEE Standards Committee is working on a wireless LAN standard 802.11, which is an extension of the Ethernet protocol. Because the field of wireless communication is so broad, the IEEE was not able to set a standard by the time private researchers were ready to test their theories hoping to set the standard for others to follow.
There are a few methods of wireless communication being theorized and tested. Radio: This is the method that makes use of standard radio waves in the 902 MHz to 928 MHz frequency range. Although these frequencies are well used, methods have been developed to ensure data integrity. Spread spectrum transmission of data is a method where the t...