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An Efficient Approximation to the Correlated Nakagami-m Sums and Its Application in Equal Gain Diversity Receivers

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Executive Summary

There are several cases in wireless communications theory where the statistics of the sum of independent or correlated Nakagami-m Random Variables (RVs) is necessary to be known. However, a closed-form solution to the distribution of this sum does not exist when the number of constituent RVs exceeds two, even for the special case of Rayleigh fading. In this paper, the authors present an efficient closed-form approximation for the distribution of the sum of arbitrary correlated Nakagami-m envelopes with identical and integer fading parameters.

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