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The paper investigates a decode-and-forward buffer-aided relay selection for an underlay cognitive radio network in the presence of an eavesdropper. The secondary users operating on the same band used by primary user, so the QoS of primary user should be guaranteed. Eavesdropper can intercept the information transmission from the secondary transmitter or relay to the corresponding receiver, which...
Simultaneous wireless information and power transfer (SWIPT) has recently drawn significant attention, however, due to the broadcast nature of wireless channels, guaranteeing the security of SWIPT system is an important research area. In this paper, we propose and analyze a low feedback overhead and low signal processing cost scheme, that using transmit antenna selection (TAS) to enhance physical...
It has been verified cooperative communication technology is an effective way to achieve physical layer security. Recently, people paid much attention to the cooperative networks with buffering relay, which can get significantly performance advantage. In this paper, we investigate the secure problem in amplify-and-forward buffer-aided cooperative networks. We modeled the AF secure cooperative network...
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