A Unified MGF-Based Capacity Analysis of Diversity Combiners over Generalized Fading Channels

Author

Yilmaz, Ferkan ; Alouini, Mohamed-Slim

Author_Institution

King Abdullah Univ. of Sci. & Technol. (KAUST), Thuwal, Saudi Arabia

Volume

60

Issue

3

fYear

2012

fDate

3/1/2012 12:00:00 AM

Firstpage

862

Lastpage

875

Abstract

Unified exact ergodic capacity results for L-branch coherent diversity combiners including equal-gain combining (EGC) and maximal-ratio combining (MRC) are not known. This paper develops a novel generic framework for the capacity analysis of L-branch EGC/MRC over generalized fading channels. The framework is used to derive new results for the gamma-shadowed generalized Nakagami-m fading model which can be a suitable model for the fading environments encountered by high frequency (60 GHz and above) communications. The mathematical formalism is illustrated with some selected numerical and simulation results confirming the correctness of our newly proposed framework.

Keywords

Nakagami channels; diversity reception; numerical analysis; L-branch EGC-MRC; Nakagami-m fading model; diversity combiners; equal-gain combining; frequency 60 GHz; generalized fading channels; mathematical formalism; maximal-ratio combining; numerical simulation; unified MGF-based capacity analysis; unified exact ergodic capacity; Approximation methods; Diversity reception; Estimation; Fading; Receivers; Shadow mapping; Signal to noise ratio; Ergodic capacity; correlated channel fading; diversity combining; equal-gain combining; gamma-shadowed generalized Nakagami-m fading; generalized Nakagami-m fading; maximal-ratio combining;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/TCOMM.2012.020912.100766

Filename

6152071