存在窃听者时视距多径信道的密钥生成速率
Secret Key Generation Rates for Line of Sight Multipath Channels in the Presence of Eavesdroppers
AI总结：
本文研究了在存在窃听者的视距多径信道中，利用接收信号强度作为共享随机性来源的轻量级物理层密钥生成方案，推导了接收信号分布并评估了互信息以设定密钥生成速率的界限。
摘要：
本文探讨了利用物理层安全实现轻量级密钥分发方案以进行密钥生成（SKG）的可行性。具体而言，我们重点研究以接收信号强度（RSS）作为共享随机性主要来源的SKG。我们的研究聚焦于频率选择性视距（LoS）多径信道，特别强调评估源自RSS分布的SKG速率。我们基于多径分量在接收端的解析方式推导了接收信号分布。使用数值估计器基于LoS 3GPP信道模型评估了互信息（MI）。我们研究了带宽、延迟扩展和Rician K因子对估计MI的影响。该MI随后作为基准，为我们的探索设定了SKG速率的界限。
英文摘要：
In this paper, the feasibility of implementing a lightweight key distribution scheme using physical layer security for secret key generation (SKG) is explored. Specifically, we focus on examining SKG with the received signal strength (RSS) serving as the primary source of shared randomness. Our investigation centers on a frequency-selective line-of-sight (LoS) multipath channel, with a particular emphasis on assessing SKG rates derived from the distributions of RSS. We derive the received signal distributions based on how the multipath components resolve at the receiver. The mutual information (MI) is evaluated based on LoS 3GPP channel models using a numerical estimator. We study how the bandwidth, delay spread, and Rician K-factor impact the estimated MI. This MI then serves as a benchmark setting bounds for the SKG rates in our exploration.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
