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Accurate Closed-Form Approximations for the Error Rate and Outage of Equal Gain Combining Diversity in Nakagami Fading Channels

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2 Author(s)
Hu, J. ; iCORE Wireless Communications Laboratory, University of Alberta, 2nd Floor, ECERF Building, Edmonton, Alberta, Canada T6G 2V4. email: jhu@ece.ualberta.ca ; Beaulieu, N.C.

In this paper, accurate closed-form approximations for the distribution and density of a sum of Nakagami random variables are presented. The proposed approximations are then used to analyze the probability of error of a L-branch predetection equal gain combiner with different fading parameters. Coherent and noncoherent binary signaling as well as coherent M-ary signaling are considered. In addition, a closed-form expression for the outage probability of these systems is derived. These closed-form expressions permit rapid evaluation of the performance of equal gain combining diversity systems without resorting to numerical integration as required by previous solutions.

Published in:

Communications, 2006. ICC '06. IEEE International Conference on  (Volume:11 )

Date of Conference:

June 2006

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