Energy-efficient power allocation with spectrum sensing in cognitive radio networks
作者： Ramnaresh Yadav , Keshav Singh , Ashwani Kumar , Tanya Kumar , None
DOI: 10.1109/ICCCHINA.2015.7448685
关键词:
摘要: Cognitive radio (CR) has emerged as a demanding concept for exploiting the unused spectrum bands of primary users when these are not currently being used. The sensing techniques in CR networks increase energy consumption while improving throughput networks, and therefore saving attracted lot attention from both government network operators. In this paper, we investigate energy-efficient transmit power allocation scheme networks. optimization problem is formulated ratio spectral efficiency (SE) to total utilized signal transmission under constraint. Next, propose an optimal which iteratively improve finally reach solution. addition, expression solution derived through dual-decomposition. Simulation results used show performance proposed can greatly (EE).
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