论文标题
THZ-RF无线链接的双跳接力的性能
Performance of Dual-Hop Relaying for THz-RF Wireless Link
论文作者
论文摘要
Terahertz（THZ）频带在核心网络和访问点之间的数据传输中使用，对于下一代无线系统可能有希望。在本文中，我们分析了用于回程应用程序的THZ-RF无线链接的双跳继电器的性能。考虑到$α-μ$褪色通道和指向错误的统计模型，我们得出了THZ链接的信噪比（SNR）的累积分布函数（CDF）的新型封闭形式表达，这也对$μ$的非智能值也有效。使用CDF，我们得出端到端SNR的分析表达式，并根据系统参数而言，在解释和前向（DF）辅助THZ-RF中继的厄法德容量上进行了下限。使用直接链接和计算机模拟的分析结果，我们证明了THZ-RF继电器是无线回程的一种可行技术，与直接传输相比，光谱效率的显着增加了近25美元\％$。
The use of Terahertz (THz) frequency bands for data transmissions between the core network and an access point can be promising for next generation wireless systems. In this paper, we analyze the performance of a dual-hop relaying for THz-RF wireless link for backhaul applications. Considering the $α-μ$ fading channel and a statistical model of pointing errors, we derive a novel closed-form expression of the cumulative distribution function (CDF) of the signal-to-noise ratio (SNR) for the THz link, which is also valid for non-integer values of $μ$. Using the CDF, we derive analytical expressions of the end-to-end SNR and lower bound on ergodic capacity of a decode-and-forward (DF) assisted THz-RF relaying in terms of system parameters. Using analytical results of the direct link and computer simulations, we demonstrate that the THz-RF relaying is a viable technology for wireless backhaul, providing a significant increase of almost $25 \%$ in the spectral efficiency, compared to the direct transmissions.
