Thursday, October 02, 2008
Up grade on Wi-Fi
There are four major concerns that face the designers of Wi-Fi networks: ensuring reliability by making certain that service is not disrupted by poor-quality radio transmissions; maintaining performance by avoiding slow link speeds and overlong delays; designing AP networks that can completely blanket the coverage area; and providing security against unfriendly wireless eavesdroppers or unauthorized users. Even when the technology is working properly, wireless access is not as swift as that provided by high-speed wired connections to the Internet, such as digital subscriber line (DSL) or cable modem links, for example. Radio signals cannot hope to match the transmission speeds that copper wires or fiber-optic cables make possible. Nor can Wi-Fi, or other wireless technologies that rely on radio, supply the same degree of security; the transmissions can be intercepted by nearby radio receivers.
"Pyramid Research, a communications industry research firm, predicts the global number of Wi-Fi users could top 271 million by 2008, with 177 million of them in the U.S. Today's Wi-Fi community already supports a vibrant international business in Wi-Fi equipment, estimated at about $3 billion annually"
"Wireless LANs are subject to problems because the technology relies on radio, which has drawbacks."
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Cite the source of your informtion clearly and use quotation marks when quoting. Use your own words as much as possible. The reader should be able to tell at a glance which words are yours and which are quoted from another source, otherwise it is plagiarism.
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