关于在存在全双工干扰和窃听的单输入多输出及多输入单输出信道上进行安全通信的STEEP研究
Investigation of STEEP for Secure Communications Over SIMO and MISO Channels Subject to Full-Duplex Jamming and Eavesdropping
浏览论文内容
中文总结 AI 辅助
研究无线节点在全双工干扰和窃听下通过SIMO及MISO信道的安全通信问题，核心方法是采用STEEP方案，给出其在不同阶段的保密速率形式，比较了与传统方案联系及保密速率，展现了STEEP在特定条件下的有效性。
中文摘要 AI 辅助
无线节点间通过单输入多输出（SIMO）和多输入单输出（MISO）信道的安全通信在应用中常见且被广泛研究。本文通过考虑一种新提出的名为“通过回波加密探针进行保密消息传输（STEEP）”的方案来研究此问题。聚焦于一种被严重窃听的信道，其中有一个激进窃听者（Eve）有多个天线且能全双工干扰和窃听。假设Eve进行最优干扰和窃听，给出了STEEP在两种形式下可实现的保密速率：第一阶段使用SIMO信道，第二阶段使用MISO信道，反之亦然。在任意节点对间给定信道条件和Eve任意有限干扰功率下，STEEP在两种形式下的保密速率在第一阶段有正功率且第二阶段有足够大功率时为正。还给出了两种形式的STEEP与传统SIMO和MISO方案的联系，并在随机衰落信道和有限发射功率下全面比较了它们的保密速率。
英文摘要
Secure communications over SIMO and MISO channels between wireless nodes are commonly encountered in applications and widely considered in the literature. This paper investigates such a problem by considering a newly proposed scheme called secrecy-message transmission by echoing encrypted probes (STEEP). We focus on a type of heavily eavesdropped channels where an aggressive eavesdropper (Eve) has multiple antennas and is capable of jamming and eavesdropping in the full-duplex mode. Assuming optimal jamming and eavesdropping by Eve, we present the secrecy rates achievable by STEEP in two forms: using SIMO channel in phase 1 and using MISO channel in phase 2, and vice versa. With any given channel condition between every pair of nodes and any finite jamming power by Eve, the secrecy rate of STEEP in either form is shown to be positive subject to a positive power in phase 1 and a sufficiently large power in phase 2. The connections between STEEP in either form and the conventional SIMO and MISO schemes are provided, and their secrecy rates are compared comprehensively subject to random fading channels and finite transmit powers.
