论文标题
多载体Noma-Thz网络中的用户配对和中断分析
User Pairing and Outage Analysis in Multi-Carrier NOMA-THz Networks
论文作者
论文摘要
本文提供了一个全面的框架，以分析单次载体和多载波Terahertz（THZ）网络的下行链路传输中非正交多重访问（NOMA）的性能。具体而言，我们首先为THZ-NOMA网络开发了一种新颖的用户配对方案，该方案可确保NOMA对NOMA对中的正交多访问（OMA）的性能提高，并根据分子吸收调整。然后，我们在存在各种用户配对方案，中Nakagami-M通道褪色和分子吸收噪声的情况下考虑了单载波和多载体THZ-NOMA网络的新型中断概率表达式。我们提出了一种基于力矩的功能（MGF）的方法，以分析多载波THZ网络中用户的中断概率。此外，对于可忽略的热噪声，我们提供了简化的单综合表达式，以计算多载体网络中的中断概率。数值结果证明了所提出的用户对方案的性能并验证派生表达式的准确性。
This paper provides a comprehensive framework to analyze the performance of non-orthogonal multiple access (NOMA) in the downlink transmission of a single-carrier and multi-carrier terahertz (THz) network. Specifically, we first develop a novel user pairing scheme for the THz-NOMA network which ensures the performance gains of NOMA over orthogonal multiple access (OMA) for each individual user in the NOMA pair and adapts according to the molecular absorption. Then, we characterize novel outage probability expressions considering a single-carrier and multi-carrier THz-NOMA network in the presence of various user pairing schemes, Nakagami-m channel fading, and molecular absorption noise. We propose a moment-generating-function (MGF) based approach to analyze the outage probability of users in a multi-carrier THz network. Furthermore, for negligible thermal noise, we provide simplified single-integral expressions to compute the outage probability in a multi-carrier network. Numerical results demonstrate the performance of the proposed user-pairing scheme and validate the accuracy of the derived expressions.
