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Type: Artigo de periódico
Title: MRCS - Selecting Maximal Ratio Combined Signals: A Practical Hybrid Diversity Combining Scheme
Author: Calmon, FD
Yacoub, MD
Abstract: This paper presents and investigates a general diversity combining scheme, here named MRCS, in which maximal-ratio combined signals are chosen on a selection combining basis. This combining method has a simple implementation and a tractable analytical formulation that can be directly applied to situations in which site selection exists. A general analysis of the probability distribution (reliability), level crossing rate, and average fade duration at the output of the combiner is provided, along with examples for a Nakagami-m fading environment. The main result of the present work, however, is the derivation of an exact, easy-to-evaluate closed-form expression for the mean signal-to-noise ratio at the output of the combiner. Such an expression is applicable for conditions in which the product of the number of maximal-ratio combining branches and the Nakagami-m parameter is an integer and it generalizes a result presented elsewhere in the literature. The formulations derived here find a direct applicability in the dimensioning of practical wireless networks.
Subject: Diversity combining
maximal-ratio combining
pure selection combining
soft handoff
Country: EUA
Editor: Ieee-inst Electrical Electronics Engineers Inc
Rights: fechado
Identifier DOI: 10.1109/TWC.2009.080949
Date Issue: 2009
Appears in Collections:Unicamp - Artigos e Outros Documentos

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