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Strategy of Relay Selection and Cooperative Jammer Beamforming in Physical Layer Security

机译：物理层安全中继选择和协作干扰波束形成的策略

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摘要

In this paper, a novel strategy of relay selection and cooperative jammer beamforming is proposed. The proposed scheme selects one node from the intermediate nodes as relay and the rest nodes as friendly jammers. The relay operates in amplify-and-forward (AF) strategy. Jammer weights are derived to null the jamming signals at the destination and relay node and maximize the jamming signal at the eavesdropper. Furthermore, a closed-form optimal solution of power allocation between the selected relay and cooperative jammers is derived. Numerical simulation results show that the proposed scheme can outperform the conventional schemes at the same power consumption.
机译：本文提出了一种新颖的继电器选择和协作干扰波束形成策略。所提出的方案从中间节点选择一个节点作为中继和辅助节点，作为友好的干扰器。继电器以放大和前进（AF）策略运行。衍生有干扰重量以在目的地和继电器节点处零点键入干扰信号，并在窃听器处最大化干扰信号。此外，推导出所选择的中继和协作干扰器之间的闭合性最佳功率分配解决方案。数值模拟结果表明，该方案可以在相同的功耗下优于传统方案。

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