合作认知无线网络中能效最优资源分配

doi:10.11999/JEIT170671

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Abstract Considering the energy-constrained cooperative cognitive radio networks, the maximization problem of Energy Efficiency (EE) with Quality of Service (QoS) constraint of primary user is investigated. Secondary user receives the signals of primary user using Simultaneous Wireless Information and Power Transfer (SWIPT) and serves as a relay with decode-and-forward protocol. Based on fractional programming and introducing auxiliary variables, the original optimization issue is converted to a convex issue and solved, and an iterative algorithm for resource allocation is proposed. Simulation results demonstrate that the proposed algorithm converges to the optimal solution quickly. Compared with the energy-cooperation strategy, the proposed strategy achieves a higher EE and protects the QoS of primary user better.

Key words： Cooperative cognitive radio networks Energy efficiency Simultaneous Wireless Information and Power Transfer (SWIPT) Convex optimization

Received: 07 July 2017 Published: 21 March 2018

PACS:

TN92

Fund:The National Natural Science Foundation of China (61372092, 61531013)

Corresponding Authors: ZHAO Yongqiang E-mail: zhaoyongqiang@stu.xjtu.edu.cn

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	QU Hua
	ZHAO Yongqiang
	ZHAO Jihong
	YAN Feiyu
	XU Xiguang

Cite this article:

QU Hua,ZHAO Yongqiang,ZHAO Jihong等. Energy Efficient Resource Allocation in Cooperative Cognitive Radio Networks[J]. JEIT, 2018, 40(5): 1024-1030.

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http://jeit.ie.ac.cn/EN/10.11999/JEIT170671 OR http://jeit.ie.ac.cn/EN/Y2018/V40/I5/1024

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