Outage performance of high-level QAM radio systems equipped with fractionally-spaced equalizers
- 6 January 2003
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
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.Keywords
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