Joint Wireless Power and Information Transfer for Primary Secure Transmission

Rui Song, Xiao Tang, Dawei Wang, D. Zhai, Woping Xu, Bin Li
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引用次数: 2

Abstract

For the sake of supplying information privacy to the primary network and supporting the secondary quality-of-service (QoS) requirement, we design a cooperative primary preserving strategy which simultaneously transfers power and information in cognitive radio networks. In this strategy, the secondary network offers information security to the primary information in three phases and obtains needed licensed spectrum for the secondary transmission. Specifically, in the first phase, a small part of the primary transmitter's power is allocated for the primary privacy transmission, meanwhile, the remaining power is utilized to beamform the energy signal for energy harvesting. After receiving the privacy signal, two secondary users cooperatively forward the privacy information under jamming protection. In the last phase, SR will occupy the licensed spectrum for the secondary information. For our proposed scheme, we research the transmission reliability and secrecy performances of the primary network and derive their closed -form expressions. Numerical results display the performance improvement of our scheme about the secondary average rate under the primary performance requirements.
用于初级安全传输的联合无线电源和信息传输
为了向主网络提供信息保密性和支持二次服务质量(QoS)要求,我们设计了一种认知无线网络中同时传输功率和信息的协同主保存策略。在该策略中,二级网络分三个阶段为主信息提供信息安全保障,并获得二级传输所需的许可频谱。具体而言,在第一阶段,将主发射机的一小部分功率分配给主保密传输,同时利用剩余功率对能量信号进行波束形成,用于能量收集。接收到隐私信号后,两个二级用户在干扰保护下协同转发隐私信息。在最后阶段,SR将占用许可频谱用于辅助信息。对于我们提出的方案,我们研究了主网络的传输可靠性和保密性能,并推导了它们的封闭形式表达式。数值结果表明,在主要性能要求下,我们的方案在次要平均速率方面的性能有所提高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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