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arXiv 1602.08161cs.ITmath.IT
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基于SWIPT的安全MISO认知无线电鲁棒最大最小公平能量收集

Robust Max-Min Fairness Energy Harvesting in Secure MISO Cognitive Radio With SWIPT

Fuhui Zhou, Zan Li, Julian Cheng, Qunwei Li, Jiangbo Si

摘要:

研究了一种多输入单输出的认知无线电下行链路网络,该网络同时进行无线信息和功率传输。在该网络中,次级用户与多个主用户和多个能量收集接收器共存。为了保证安全通信和能量收集,研究了不完全信道状态信息下鲁棒安全人工噪声辅助波束形成和功率分配设计问题。具体地说,最大-最小公平能量收集问题下制定的有界信道状态信息误差模型。提出了一种基于${\cal S}\text{-Procedure} $的一维搜索算法。结果表明,最佳的鲁棒安全波束形成可以实现。阐明了在最大-最小公平性准则下二级用户接收机的保密率与能量收集接收机收集的能量之间的权衡。

英文摘要:

A multiple-input single-output cognitive radio downlink network is studied with simultaneous wireless information and power transfer. In this network, a secondary user coexists with multiple primary users and multiple energy harvesting receivers. In order to guarantee secure communication and energy harvesting, the problem of robust secure artificial noise-aided beamforming and power splitting design is investigated under imperfect channel state information. Specifically, the max-min fairness energy harvesting problem is formulated under the bounded channel state information error model. A one-dimensional search algorithm based on ${\cal S}\text{-Procedure} $ is proposed to solve the problem. It is shown that the optimal robust secure beamforming can be achieved. A tradeoff is elucidated between the secrecy rate of the secondary user receiver and the energy harvested by the energy harvesting receivers under a max-min fairness criterion.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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