Wireless Fidelity Technology

It has more than 870 completed standards, and everywhere 400 more in development. It "creates, develops, and integrates, shapes, and applies knowledge about electro- and teaching technologies and sciences for the benefit of humanity and the profession." The Wi-Fi Alliance (WFA), formerly WEGA, is a not-for-profit validation formed in 1999 to certify the interoperability of 802.11 products and to promote them globally as the WLAN standard. It has a test system which certifies products as practical with other WFA-certified products.

One of the trade-offs of Wi-Fi technology is still the security retort (Fougere, 2003). Initially, there was the need to conf character security manageable in software inside the Wi-Fi NIC ( lucre interface card), which resulted in an approach called 40-bit WEP (wired equivalency protection), alone this proved to have too high a photograph level. WEP mechanisms implement the confidentiality and integrity of the traffic on a network (Uskela, 1997). WEP uses the RC4 PRNG algorithm based on a 40-bit secret advert and a 24 bit initialization vector direct with the data. Each Medium Access Control Protocol information Unit (MPDU) frame includes the clear text Initialization vector (IV) and Integrity Check Vector (ICV) as well as the cipher text data break off so the recipient can always decrypt the cipher text block and check its integrity. The actual algorithm used is not public,

It is predicted that the number of hotspots enabling Wi-Fi connectivity will bump off 31,580 by the end of this year -2003 - and 135,000 around the world within the next three years (Walko, 2003). The number of Wi-Fi users by 2006 is anticipate to grow from the present 1.53 million to 23 million, generating $7 one thousand thousand in revenues. Currently, the Asia-Pacific region has the most hotspots, with South Korea projected to have an estimated one million users by the end of 2003. The North American and EMEA (Europe, Middle East and Africa) are pass judgment to catch up and surpass the Asia-Pacific region.

Sweden has been the leading country in Europe in terms of Wi-Fi hotspots, but Britain and Germany are catching up as operators such as British Telecom and Swisscom have begun making major investments in the technology with relaxation of the restrictions on use of the 2.4-Ghz spectrum. Heavy marketing campaigns and investment from leading telecommunications operators are expect to drive the product of Wi-Fi in North America, and the market should seize $2.8 billion by 2006. These returns are much less than initially expected from Wi-Fi, and small operators may get squeezed out of the market. It does not appear that Wi-Fi will be the big moneymaker that was expected of it when it first came on the scene. Many PWLAN (Public WLAN) servers have found that initial returns have been much less than expected. PWLAN is not expected to sour such a mass market as the cellular phone system. However, the development of standards such as 802.11a, 802.11g, 802.11i (security), and 802.11e (QOS)(Quality of Service) should catalyze the growth of Wi-Fi in all market segments, particularly with Microsoft, Intel, and Cisco button these products (Vance, 2003, 46).

Pappalardo, Denise. (2002, December). "Public wireless LAN services gain momentum; WI-FI: Surveying the possibilities in the wireless LAN landscape." Network World, 36.

Kerry, Stuart, J., & McCabe, Karen. (2003).
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