Artículos de revistas
MRCS - Selecting Maximal Ratio Combined Signals: A Practical Hybrid Diversity Combining Scheme
Registro en:
Ieee Transactions On Wireless Communications. Ieee-inst Electrical Electronics Engineers Inc, v. 8, n. 7, n. 3425, n. 3429, 2009.
1536-1276
WOS:000268107400020
10.1109/TWC.2009.080949
Autor
Calmon, FD
Yacoub, MD
Institución
Resumen
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) 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. 8 7 3425 3429 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) FAPESP [07/02117-1]
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