Third Generation Wireless Communications: Post Shannon by George Calhoun

By George Calhoun

This instruction manual examines the elemental innovations, layout thoughts, and complicated architectures for tackling serious instant communique difficulties equivalent to potential, mistakes correction, and channel interference. It seeks to aid practitioners comprehend the large calls for being made up of present instant ability, and explores the necessity for a moment communications ''golden age'', within which instant planners, designers and engineers holiday down the limits confirmed within the communications orthodoxy of Claude Shannon's ''communications theory''.

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In a previous book, written in 1991, I examined the technical and economic arguments for FTTH and its variants, and I concluded that other than video (for which there were already several entrenched competitive delivery systems), there was no clear service proposition that would require and drive broadband in the access network [4]. There was no compelling reason, certainly, for wireless systems designers back then to anticipate a need for wireless broadband, especially given the inherent scarcity of the spectrum resource.

We might exacerbate the problem by factoring in the assumption of multiple recipients for heavy e-mail packages, or even user groups with mesh communications channels (for applications like Microsoft’s NetMeeting software). We could run the model through the roof by looking at the higher bit rates that system architects want for “true” broadband—from 384 Kbps up to several megabits per second. Finally, if the holding times on wireless nodes ever begin to reflect the holding times for wireline Internet access, we will be measuring the offered traffic not in minutes but in hours per day.

That was really his discovery, and from it the whole communications revolution has sprung” [3]. As our high-tech economy has caught up with Shannon’s article, the relevance and significance of his ideas have grown in our estimation to the point where he seems an almost Promethean figure. It was Shannon, it is said, who came up with the “basic idea on which all modern computers are built” [3]. He is cited as a founding father for fields as diverse as telephone transmission, cryptography, and investment theory.

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Third Generation Wireless Communications: Post Shannon by George Calhoun
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