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Outage performance of high-level QAM radio systems equipped with fractionally-spaced equalizers

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2 Author(s)
Niger, P. ; CNET, Lannion, France ; Vandamme, P.

The authors present a comparative study of synchronous and fractionally spaced equalization techniques in a multipath fading environment. The outage performance of 64-QAM (quadrature amplitude modulation) and 256-QAM 140-Mb/s digital radio systems equipped with linear and decision-feedback equalizers is evaluated. Results are given in terms of net fade margin improvement versus flat fade margin. They show that the 2- to 3-dB gain obtained for linear equalizers vanishes with nonlinear equalizers

Published in:
Global Telecommunications Conference, 1988, and Exhibition. 'Communications for the Information Age.' Conference Record, GLOBECOM '88., IEEE

Date of Conference: 28 Nov-1 Dec 1988

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