Secure Roaming In 802.11 Networks by Paul Goransson

By Paul Goransson

This ebook explores the basic thoughts, easy thought, and key rules of 802.11 networks with roaming functions. at the present time, we more and more anticipate finding public extensive neighborhood sector community (WLAN) 802.11 entry in our airports, public areas, and inns, and we wish to hold our connections while we are cellular and utilizing 802.11 WLANs. despite the fact that, 802.11 was once now not initially designed with roaming features and cannot, in its "pure" shape, aid seamless roaming among varied hotspots and different 802.11 entry issues. This e-book information the speculation at the back of a number of 802.11 extensions to allow roaming and describes how those extensions may be effectively applied in 802.11 WLANs. assurance of consumer Authentication in 802.11 is reviewed as is roaming among 802.11 and different instant applied sciences. instant applied sciences and alertness programming interfaces are given their due with beneficiant assurance in addition. * bargains a accomplished treatise on wireless 802.11 roaming by means of comparing/contrasting it to mobile roaming concept and methods * Emerges as a "one cease" source for layout engineers charged with pleasant the marketplace desire for seamless 802.11 machine roaming functions * Builds upon the information base of a pro viewers with out delving into lengthy discussions of conception lengthy when you consider that mastered

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The wireless industry found its first commercial success in the maritime shipping industry. The famous communication between the doomed Titanic and the Carpathia in 1912 highlighted the importance of this emerging field. World War I demonstrated the advantages that radio communication would bring on the battlefield, although it was not until the 1940s that ubiquitous use of radio technology by the United States armed forces demonstrated that this communication mechanism was a key part of any future arsenal.

11 depicts a network of overlapping cells. In the figure, the letters A, B, C, and D represent four different users and their locations. Note that user A is not within any cell; user B is within one cell; user C is within two cells; and user D is within three cells. Clearly, in order to obtain full coverage in the circular network cell model of an area much larger than the cells themselves, one must have overlapping circles. The second network cell model we consider is based on hexagons rather than circles.

1 and many others indicate a definite trend in communications and computing technologies. The future promises the possibility of universal affordable access to the abundant resources of the Internet and broadcast media with portable wireless personal communications devices. Elementary-school students in rural areas will be able to do their homework assignment (or watch their favorite cartoon) on a long bus ride home. While en route to her next appointment across town or across an ocean, a sales representative will be able to show her presentation to colleagues at the monthly staff meeting.

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