论文标题
通过THZ无线链接上的多Aantenna RF传输的合作继电器的性能分析
Performance Analysis of Cooperative Relaying for Multi-Antenna RF Transmissions over THz Wireless Link
论文作者
论文摘要
最近的研究集中在单个天线射频（RF）和Terahertz（THZ）无线系统上，以将访问链接与回程相结合。在本文中，我们评估了混合RF-THZ系统的性能，该系统采用了RF链路和单个Antenna THZ传输的多个天线辅助接入点（AP）。我们在AP上采用同等增益组合（EGC）接收器，并使用固定增益扩增和向前（AF）中继协议接口RF和THZ链接。我们为考虑的系统的概率密度函数（PDF）和端到端SNR的累积分布函数（CDF）得出分析表达式，假设对RF和THZ通道的模型以及THZ链路中的指向错误，则假定独立和非相同分布（I.Ni.D.）$α$ - $μ$分布。我们使用中断概率，平均位错误率（BER）和涉及双变量FOX的H功能的Ergodic容量来分析系统性能。我们使用残基方法使用伽马函数来开发渐近分析，以显示各种通道和系统参数对高SNR制度中的停电概率和平均BER的影响。我们使用计算机模拟来描述性能的缩放，并增加了AP处的天线数量以在访问链路中进行信号接收。
Recent research has focused on single antenna radio-frequency (RF) and terahertz (THz) wireless systems to mix the access link with the backhaul. In this paper, we evaluate the performance of a mixed RF-THz system employing multiple antenna-assisted access point (AP) for the RF link and single-antenna THz transmissions. We employ an equal gain combining (EGC) receiver at the AP and use the fixed-gain amplify and forward (AF) relaying protocol to interface the RF and THz links. We derive analytical expressions for probability density function (PDF) and cumulative distribution function (CDF) of the end-to-end SNR for the considered system assuming independent and non-identically distributed (i.ni.d.) $α$-$μ$ distribution to model for both RF and THz channels and pointing errors in the THz link. We analyze the system performance using the outage probability, average bit error rate (BER), and ergodic capacity involving bivariate Fox's H-function. We use the residue method to develop asymptotic analysis using Gamma functions to show the impact of the various channel and system parameters on the outage probability and average BER in the high SNR regime. We use computer simulations to depict the scaling of the performance with an increase in the number of antennas at the AP for signal reception in the access link.
