Analysis of Capacity and Outage Probability for NOMA based Cellular Communication over Rician Fading Channel

2022 First International Conference on Electrical, Electronics, Information and Communication Technologies (ICEEICT) Pub Date : 2022-02-16 DOI:10.1109/ICEEICT53079.2022.9768575

Veeraiyah Thangasamy, I. Singh, Karishma, Yaswanth, Jathin Sai

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Abstract

Non-Orthogonal multiple access (NOMA) scheme serves as a favorable technology for 5G and beyond cellular networks as compared to orthogonal multiple access (OMA) scheme. Multipath fading also affects the performance of wireless communication system. So as to exploit the features of NOMA technique, it is vital to identify and analyze its performance over various fading channels. This paper provides the performance analysis of NOMA based cellular system over two key parameters named as channel capacity and outage probability. Rician fading distribution has been considered for multipath fading. Rician fading channel is much suitable when at least one communication link fallow a line-of-sight (LoS) path and the signal strength is much stronger than other paths. An analytical expression for channel capacity and outage probability has been derived for considered system model. Mante Carlo simulation has been performed to obtain the simulation results for channel capacity and outage probability using the Rician fading channel. Comparison of simulation results for near and far users have been provided for channel capacity and outage probability.

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基于NOMA的蜂窝式衰落信道通信容量和中断概率分析

与正交多址(OMA)方案相比，非正交多址(NOMA)方案是5G及以上蜂窝网络的有利技术。多径衰落也影响着无线通信系统的性能。为了充分利用NOMA技术的特点，对其在各种衰落信道下的性能进行识别和分析至关重要。本文通过信道容量和中断概率两个关键参数对基于NOMA的蜂窝系统进行了性能分析。在多径衰落中考虑了梯度衰落分布。当至少有一条通信链路处于视距路径下，且信号强度比其他路径强得多时，采用线性衰落信道是非常合适的。针对所考虑的系统模型，导出了信道容量和中断概率的解析表达式。通过曼特卡罗仿真，得到了使用该衰落信道的信道容量和中断概率的仿真结果。给出了近端和远端用户信道容量和中断概率的仿真结果比较。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2022 First International Conference on Electrical, Electronics, Information and Communication Technologies (ICEEICT)

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