Equal Power Allocation scheme for cooperative diversity

Abstract

In this paper, we present the Equal power allocation (EPA) algorithm for power allocation and partner selection under a given constraint of outage probability. The proposed algorithm is used for a cooperative diversity system using amplify-and-forward scheme. We represent the problem with a new formulation to find the minimum total required power satisfying the outage probability constraint. We also present a low complexity algorithm for selecting the partner node among all candidate partners. We develop the analytical model and evaluate the results for some typical cases to demonstrate that the performance of the EPA algorithm. It is shown that the proposed algorithm achieves almost the same performance as the previously published algorithms while reducing its implementation complexity.