EC Analysis of Multi-Antenna System over 5G and Beyond Networks and its Application to IRS-Assisted Wireless Systems

Recently, the theory of effective rate has attracted much attention, since it can take the delay aspect into account when performing channel capacity analysis. In this paper, we study the effective throughput performance of the multi-antenna system over the Beaulieu-Xie fading channel. Both the probability density function-based approach and the moment generating function-based approaches are used to derive the closed-form expressions of the effective throughput for the multi-antenna system. The application of the proposed solution for the IRS-assisted indoor wireless system over the Beaulieu-Xie fading channel is also discussed. Interesting insights related to the channel fading parameters and the number of reflecting elements on the system performance are drawn and discussed conclusively. In addition to this, we also derived the simplified high-power and low-power approximation that enables direct interpretation of the system performance concerning system fading parameters. The accuracy of the derived theoretical expressions is validated through Monte-Carlo simulation results. The results presented in this study can be used in designing the communication system for real-time applications in femtocells and high-speed trains.