This study evaluates the performance of single-input multiple-output (SIMO) wireless networks or dual-branch (DB) SIMO scenarios over the η–μ and the λ–μ fading links. First, the probability density functions (PDFs) of the instantaneous signal to noise ratio for a DB SIMO system in the η–μ and the λ–μ fading conditions. Then, the closed-form expressions of the effective rate (ER or effective capacity) for a SIMO network are derived. In addition to this, asymptotic ER expressions for the considered SIMO network are proposed. The analytical capacity expressions with different transmission policies such as optimal rate adaptation with constant transmit power, optimal simultaneous power and rate adaptation, channel inversion with fixed-rate (CIFR), and truncated channel inversion with fixed-rate are obtained for the SIMO network. Furthermore, the capacity expressions with CIFR policy for DB SIMO communications over the η–μ and the λ–μ fading channels are derived by using the proposed PDFs. Finally, the amount of fading expressions for SIMO networks over the η–μ and the λ–μ fading links are proposed by employing the elementary functions. The proposed analytical expressions provide to establish different radio propagation scenarios by adjusting η, λ or μ parameter. To confirm the accuracy of our analysis, the proposed analytical expressions are verified via exact simulations.

本研究评估了η – μ和λ – μ衰落链路上单输入多输出（SIMO）无线网络或双分支（DB）SIMO方案的性能。首先，在η – μ和λ – μ中，DB SIMO系统的瞬时信噪比的概率密度函数（PDF）衰落条件。然后，得出SIMO网络有效率（ER或有效容量）的闭式表达式。除此之外，针对所考虑的SIMO网络，提出了渐近ER表达式。针对SIMO网络，获得了具有不同传输策略的分析能力表达式，例如具有恒定发射功率的最佳速率自适应，最佳同时功率和速率自适应，固定速率的信道反转（CIFR）和固定速率的截短的信道反转。此外，具有CIFR策略的容量表达式用于η – μ和λ – μ上的DB SIMO通信衰落信道是通过使用建议的PDF导出的。最后，利用基本函数提出了η – μ和λ – μ衰落链路上SIMO网络的衰落表达式数量。所提出的解析表达式可通过调整η，λ或μ参数来建立不同的无线电传播场景。为了确认我们分析的准确性，通过精确的模拟对提出的分析表达式进行了验证。