In this letter, we analyze the performance of the intelligent reflecting surface (IRS) assisted downlink non-orthogonal multiple access (NOMA) systems in the presence of imperfect phase compensation. We derive an upper bound on the imperfect phase compensation to achieve minimum required data rates for each user. Using this bound, we propose an adaptive user pairing algorithm to maximize the network throughput. We then derive bounds on the power allocation factors and propose power allocation algorithms for the paired users to achieve the maximum sum rate or ensure fairness. Through extensive simulations, we show that the proposed algorithms significantly outperform the state-of-the-art algorithms.

翻译：在这封信中,我们分析了智能反射表面系统(IRS)在不完善的阶段补偿的情况下辅助的非横向多功能访问(NOMA)系统(NOMA)的性能。我们从不完善的阶段补偿中获取了一个上限,以达到每个用户所需的最低数据率。我们利用这一约束,提出了适应性用户配对算法,以最大限度地扩大网络输送量。我们随后得出关于权力分配系数的界限,并为配对用户提出权力分配算法,以达到最高总和率或确保公平。我们通过广泛的模拟,显示拟议的算法大大超过最新算法。