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In this study, the authors investigate the physical layer security for safeguarding secure transmission in multi-antenna relaying networks with imperfect channel state information (CSI). Different from traditional strategies in multi-antenna relaying systems, which would terminate the communication if the relay could not decode the signals successfully, the authors propose robust secure transmission...
In this paper, we investigate the physical layer security of multiple-input single-output single-antenna eavesdropper relaying networks with imperfect channel state information. Different from traditional strategies in relay systems, which would halt the communication if the relay could not decode the signal successfully, we propose a robust secure transmission strategy which switches between cooperative...
In this paper, we analyze the effect of feedback delay and estimation errors on secrecy throughput performance in wireless networks. Specially, we consider a multiple-input single-output single eavesdropper (MISOSE) channel, where a multi-antenna source sends private signals to a single-antenna legitimate receiver in the presence of an eavesdropper. In order to enhance the security, we adopt hybrid...
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