A unified framework for performance analysis of CSI-assisted cooperative communications over fading channels

Authors:
Marco Di Renzo;Fabio Graziosi;Fortunato Santucci
Affiliations:
The University of Edinburgh, College of Science and Engineering, School of Engineering, Institute for Digital Communications, Edinburgh, Scotland, United Kingdom;Department of Electrical and Information Engineering and the Center of Excellence in Research DEWS, University of L'Aquila, L'Aquila, Italy;Department of Electrical and Information Engineering and the Center of Excellence in Research DEWS, University of L'Aquila, L'Aquila, Italy
Venue:
IEEE Transactions on Communications
Year:
2009

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Abstract

In this Letter, we propose a comprehensive framework for performance analysis of cooperative wireless systems using Amplify and Forward (AF) relay methods. The framework relies on the Moment Generating Function (MGF-) based approach for performance analysis of communication systems over fading channels, and on some properties of the Laplace Transform, which allow to develop a single-integral relation between the MGF of a random variable and the MGF of its inverse. Moreover, a simple lower bound for Outage Probability (Pout) and Outage Capacity (OC) computation is also introduced. Numerical and simulation results are provided to substantiate the accuracy of the proposed framework.