论文标题
星际辅助NOMA系统的厄贡率分析
Ergodic Rate Analysis of STAR-RIS Aided NOMA Systems
论文作者
论文摘要
这封信分析了同时传输和反映可重新配置的可重新配置的智能表面（Star-ris）辅助的非正交多访问（NOMA）系统的奇特速率，在该系统中，从基站到小区边缘用户的直接链接是由于障碍物而导致的障碍物，并且用于为这些细胞的链路提供这些细胞的链接。通过将复合通道功率增益的分布拟合到伽马分布中，我们为细胞边缘用户提供了千古率和高信噪比（SNR）斜率的闭合形式表达式。数值结果表明，1）随着星际元素的数量，厄乳率增加，高SNR斜率是固定的； 2）与常规RIS辅助Noma Systems相比，Star-Ris辅助NOMA系统获得更高的辉煌速率。
This letter analyzes the ergodic rates of a simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) aided non-orthogonal multiple access (NOMA) system, where the direct links from the base station to cell-edge users are non-line-of-sight due to obstacles, and STAR-RIS is used to provide line-of-sight links to these cell-edge users. By fitting the distribution of the composite channel power gain to a gamma distribution, we derive the closed-form expressions of ergodic rates and high signal-to-noise ratio (SNR) slopes for cell-edge users. Numerical results reveal that 1) the ergodic rates increase with the number of STAR-RIS elements, and the high SNR slopes are fixed as constants; 2) STAR-RIS aided NOMA systems achieve higher ergodic rates than conventional RIS aided NOMA systems.
