Recent research investigates the decode-and-forward (DF) relaying for mixed radio frequency (RF) and terahertz (THz) wireless links with zero-boresight pointing errors. In this letter, we analyze the performance of a fixed-gain amplify-and-forward (AF) relaying for the RF-THz link to interface the access network on the RF technology with wireless THz transmissions. We develop probability density function (PDF) and cumulative distribution function (CDF) of the end-to-end SNR for the relay-assisted system in terms of bivariate Fox's H function considering $\alpha$-$\mu$ fading for the THz system with non-zero boresight pointing errors and $\alpha$-$\kappa$-$\mu$ shadowed ($\alpha$-KMS) fading model for the RF link. Using the derived PDF and CDF, we present exact analytical expressions of the outage probability, average bit-error-rate (BER), and ergodic capacity of the considered system. We also analyze the outage probability and average BER asymptotically for a better insight into the system behavior at high SNR. We use simulations to compare the performance of the AF relaying having a semi-blind gain factor with the recently proposed DF relaying for THz-RF transmissions.
翻译:最近的研究调查了混合无线电频率(RF)和Thahertz(Thz)无线连接的解码和前向(DF)中继,并带有零光点指示误差。在本信中,我们分析了RF-Thz连接的固定增益扩展和前向(AF)中继功能,以连接RF技术接入网络与无线Thz传输的无线Thz传输连接。我们开发了中继协助系统的端至端SNR的概率密度函数和累积分布函数(CDF),以双变频Fox的H功能计算,其中考虑的是美元-美元-穆元(Thz)在Thz系统中的损耗值,非零光点指示误差和以美元-Kapappa-美元(美元-美元-美元)的隐藏链接。我们使用衍生的PDF和CDFF,我们用精确的分析表达了超值概率、平均比拉里特(BER),并且将S-RF的中继系统中继能力与最近对中转系统进行中转的概率分析。我们还分析,我们用了SBR的概率系统,我们还分析了了。我们用了对S-RBRA的高级的概率的模拟的模拟的模拟性能系统。