arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2009.09415eess.SP
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离散输入混合伽玛衰落信道下的物理层安全性:一个统一的通用分析框架

Physical Layer Security Over Mixture Gamma Distributed Fading Channels With Discrete Inputs: A Unified and General Analytical Framework

Chongjun Ouyang, Sheng Wu, Chunxiao Jiang, Julian Cheng, Hongwen Yang

摘要:

研究了离散输入混合Gamma(MG)衰落信道下的物理层安全问题.利用高斯求积规则,推导出了平均保密率(ASR)和保密中断概率(SOP)的封闭表达式,并通过数值仿真验证了其准确性。为了更好地展示有限字母表信令的特性,我们在主信道平均信噪比的大极限下对保密度量进行了渐近分析。利用梅林变换,我们发现,ASR和SOP收敛到一些常数的平均信噪比的增加,我们推导出新的表达式来表征收敛速度。这项工作建立了一个统一的和一般的分析框架,离散输入实现的保密性能。

英文摘要:

Physical layer security is investigated over mixture Gamma (MG) distributed fading channels with discrete inputs. By the Gaussian quadrature rules, closed-form expressions are derived to characterize the average secrecy rate (ASR) and secrecy outage probability (SOP), whose accuracy is validated by numerical simulations. To show more properties of the finite-alphabet signaling, we perform an asymptotic analysis on the secrecy metrics in the large limit of the average signal-to-noise ratio (SNR) of the main channel. Leveraging the Mellin transform, we find that the ASR and SOP converge to some constants as the average SNR increases and we derive novel expressions to characterize the rates of convergence. This work establishes a unified and general analytical framework for the secrecy performance achieved by discrete inputs.

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。

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