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首页> 外文期刊>Information Forensics and Security, IEEE Transactions on >Physical Layer Security in Buffer-State-Based Max-Ratio Relay Selection Exploiting Broadcasting With Cooperative Beamforming and Jamming
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Physical Layer Security in Buffer-State-Based Max-Ratio Relay Selection Exploiting Broadcasting With Cooperative Beamforming and Jamming

机译：基于缓冲区状态的最大比率中继选择中的物理层安全性，利用协作波束成形和干扰来开发广播

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摘要

In this paper, we propose a novel secure buffer-aided decode-and-forward relay selection that amalgamates the benefits of the buffer-state-based relay selection, the max-ratio criterion, the simultaneous activation of multiple source-to-relay links, and the cooperative beamforming in dual-hop networks. More specifically, the proposed scheme is designed for selecting a single or multiple relay nodes for packet reception or transmission based on the buffer states of relay nodes, while avoiding the detrimental effects of both an empty buffer state and a buffer overflow. Analytical bounds on the secrecy outage probability and the average delay are derived for our proposed scheme, based on a Markov chain process, in order to verify the system model of our proposed scheme. Furthermore, we introduce the concept of cooperative jamming into the proposed scheme, in order to interfere with an eavesdropper's reception, while dispensing with the full channel state information associated with an eavesdropper at a central coordinator. Our simulation results demonstrate that the proposed schemes outperform the existing buffer-based secure relay selection schemes, in terms of both the secrecy outage probability and the average delay, as the explicit benefits of our novel introduced concepts.
机译：在本文中，我们提出了一种新颖的安全的，缓冲辅助的解码和转发中继选择，它融合了基于缓冲状态的中继选择，最大比率标准，同时激活多个源到中继链路的优势，以及双跳网络中的协作波束成形。更具体地，所提出的方案被设计用于基于中继节点的缓冲器状态来选择单个或多个中继节点以用于分组接收或传输，同时避免空缓冲器状态和缓冲器溢出两者的有害影响。基于马尔可夫链过程，推导了我们提出的方案的保密中断概率和平均延迟的分析范围，以验证我们提出的方案的系统模型。此外，我们在建议的方案中引入了协作干扰的概念，以干扰窃听者的接收，同时在中央协调器处放弃与窃听者相关的完整信道状态信息。我们的仿真结果表明，在保密中断概率和平均延迟方面，所提出的方案均优于现有的基于缓冲区的安全中继选择方案，这是我们新颖引入的概念的显着优势。

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