论文标题
模仿缓冲辅助的多用途系统的全双工安全通信
Mimicking Full-Duplex Secure Communications for Buffer-Aided Multi-Relay Systems
论文作者
论文摘要
本文考虑在一个窃听器的存在下，考虑了缓冲辅助协作无线网络中的安全通信，这可以拦截从源和中继节点的数据传输。提出了一种新的Max-Ratio继电器协议，其中根据合法通道与窃听器通道的比率选择不同的继电器进行接收和传播，以便选择接收的接力并可以同时接收和传输。值得注意的是，继电器采用随机和前向（RF）策略，因此窃听器只能独立解码两个啤酒花中收到的信号。提供了拟议方案的保密吞吐量的理论分析，并得出了近似闭合形式表达式，并通过模拟验证。通过数值结果，与现有的继电器选择策略相比，所提出的方案可以显着改善保密吞吐量。
This paper considers secure communication in buffer-aided cooperative wireless networks in the presence of one eavesdropper, which can intercept the data transmission from both the source and relay nodes. A new max-ratio relaying protocol is proposed, in which different relays are chosen for reception and transmission according to the ratio of the legitimate channels to the eavesdropper channels, so that the relay selected for reception and the relay selected for transmission can receive and transmit at the same time. It is worth noting that the relay employs a randomize-and-forward (RF) strategy such that the eavesdropper can only decode the signals received in the two hops independently. Theoretical analysis of the secrecy throughput of the proposed scheme is provided and the approximate closed-form expressions are derived, which are verified by simulations. Through numerical results, it is shown that the proposed scheme achieves a significant improvement in secrecy throughput compared with existing relay selection policies.
