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What is Autonegotiation

Chapter 55
Encyclopedia of Networked and Virtual Organizations
It detects the various communication modes that exist for two network devices, automatically configuring the highest mode of interconnection.
Published in Chapter:
Development of a University Networking Project
Almudena Moreno Mínguez (Universidad de Valladolid, Spain) and Enrique Crespo Ballesteros (Universidad de Valladolid, Spain)
Copyright: © 2008 |Pages: 14
DOI: 10.4018/978-1-59904-885-7.ch055
Abstract
A communications channel has an important dependence for the channel capacity (C, in bps) to channel bandwidth (W, in Hz) ratio; this is capacity per unit bandwidth on signal to noise ratio (S/N, power of the signal over power of noise). Shannon’s formula gives an upper limit for this dependence (Shannon & Weaver, 1949), C/W=log2 (1+S/N), which represents channel efficiency. Phase lock loops for waves and data symbols in the presence of noise have been given (Reis, Rocha, Gameira, & Carvalho, 2005).
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