论文标题
与多样性组合的混合THZ和多种ANTENNA RF系统的性能
Performance of Hybrid THz and Multi-Antenna RF System with Diversity Combining
论文作者
论文摘要
最近的研究研究了与Terahertz（THZ）无线通信混合的单烷射频（RF）系统。本文考虑了用于回程的THZ的两层系统，并辅助了用于访问网络的RF。我们通过使用固定增益放大和正向（AF）协议使用选择组合（SC）和最大比率组合（MRC）接收器来分析系统性能。我们开发了双跳系统的端到端信号到噪声（SNR）的概率密度函数（PDF）和累积分布函数（CDF），而不是独立和非分布式分布式（i.ni.d.）$α$ - $ - $ - $ - $ - $ - $μ$ fading通道，其统计模型在Thz thz无线链接中具有统计学上的错误模型。我们使用派生的统计结果来开发出停机概率，平均位错误率（BER）和千古能力的分析表达式，以评估所考虑的系统的性能评估。我们使用高SNR区域中的渐近分析发展系统的多样性顺序，证明了与天线数量的系统性能缩放。我们使用计算机模拟来显示系统和信道参数对与多端纳多样性方案的混合THZ-RF链接性能的影响。
Recent studies investigate single-antenna radio frequency (RF) systems mixed with terahertz (THz) wireless communications. This paper considers a two-tier system of THz for backhaul and multiple-antenna assisted RF for the access network. We analyze the system performance by employing both selection combining (SC) and maximal ratio combining (MRC) receivers for the RF link integrated with the THz using the fixed-gain amplify and forward (AF) protocol. We develop the probability density function (PDF) and cumulative distribution function (CDF) of the end-to-end signal-to-noise (SNR) of the dual-hop system over independent and non-identically distributed (i.ni.d.) $α$-$μ$ fading channels with a statistical model for misalignment errors in the THz wireless link. We use the derived statistical results to develop analytical expressions of the outage probability, average bit error rate (BER), and ergodic capacity for the performance assessment of the considered system. We develop diversity order of the system using asymptotic analysis in the high SNR region, demonstrating the scaling of system performance with the number of antennas. We use computer simulations to show the effect of system and channel parameters on the performance of the hybrid THz-RF link with multi-antenna diversity schemes.
