单跳无线中继系统中总发射功率约束下的合作方案性能分析

Rupal Sinha, P. Jindal
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引用次数: 3

摘要

在无线通信中,物理层安全被广泛应用于发送端和接收端之间的安全通信。在单跳无线中继系统中,研究了译码转发(DF)和放大转发(AF)两种合作方案的保密性能。在总传输功率约束下,研究了这两种继电器的可实现保密率。在所述干扰中继网络中,中继在接收来自所述源的数据信号的同时发送干扰信号。分析结果表明,在给定条件下,自动对焦继电器比自动对焦继电器具有更好的保密率。在该干扰中继网络中,在中继与窃听者之间70 m的距离上,AF中继的保密率比DF中继的保密率高71.88%。
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Performance analysis of cooperative schemes under total transmit power constraint in single hop wireless relaying system
In wireless communication, physical layer security is widely used for secure communication between the transmitter and the receiver. In this paper, the secrecy performance of two cooperative schemes, decode-and-forward (DF) and amplify-and-forward (AF) relays is investigated in a single hop wireless relaying system. The achievable secrecy rate is investigated with these two types of relays under the constraint of total power transmitted. In the given jamming relay network, the relay transmits jamming signal while receiving data signal from the source. It is indicated by the resulting analysis that the AF relays have better secrecy rate as compared to the DF relays in the given condition. The secrecy rate of the AF relay is higher than that of the DF relay by 71.88% at a distance of 70 m between the relay and the eavesdropper in this jamming relay network.
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