Robust Resource Allocation for Secrecy Wireless Powered Communication Networks
Robust Resource Allocation for Secrecy Wireless Powered Communication Networks
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DOI：
10.1109/lcomm.2016.2598327
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发表时间：
2016-09
期刊：
影响因子：
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通讯作者：
Yanan Wu;Xiaoming Chen;C. Yuen;C. Zhong
中科院分区：
文献类型：
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作者：
Yanan Wu;Xiaoming Chen;C. Yuen;C. Zhong
在这封信中，我们考虑了一个秘密的无线供电通信网络（WPCN），其中信息源发送消息到一个合法的目的地与能量收获从电源，而窃听者打算拦截的信息。在这种保密WPCN中，功率源处的发射功率和传输时间以及信源处的空间波束相互关联，并且共同影响保密性能。考虑到窃听者信道的不完全信道状态信息，提出了一种鲁棒的资源分配方案，以在最坏情况下最大化保密率。仿真结果验证了该方案的有效性。
In this letter, we consider a secrecy wireless powered communication network (WPCN), where an information source sends message to a legitimate destination with the energy harvested from a power source, while an eavesdropper intends to intercept the information. In such a secrecy WPCN, transmit power and transfer time at the power source, and spatial beam at the information source, are interrelated, and together affect the secrecy performance. Considering imperfect channel state information about the eavesdropper channel, a robust resource allocation scheme is proposed for maximizing the secrecy rate in the worst case. Finally, the simulation results validate the effectiveness of the proposed scheme.