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2009 3rd IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing (CAMSAP)
In this paper, the problem of optimal power allocation among the relays in two-hop decode-and-forward cooperative networks is considered, and a new power allocation scheme which minimizes the average symbol error probability under limited total power of all relays and limited maximum powers of individual relays is developed. It is shown that the corresponding power allocation optimization problem is convex and, therefore, can be efficiently solved using interior point methods. Moreover, andoi:10.1109/camsap.2009.5413267 fatcat:ctfhjt7hw5hvtkoklosymkjmem