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A major challenge in the design of next generation wireless communication systems is to achieve both reliable and spectral efficient communication with large coverage range. To tackle this problem, advanced diversity techniques combined with adaptive mechanisms have to be designed in order to combat or even exploit the variability of the radio propagation medium across time, frequency and space. In this paper, the authors deal with power allocation techniques for cooperative protocols where terminals are constrained by half-duplex assumption and average total network power. They propose a cooperation scheme based on the combination of hybrid cooperation strategies with an effective power allocation algorithm. Simulation results show that their proposal improves the outage performance while reducing the overall cooperation complexity.
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