论文标题
Max-Min公平无线驱动的无细胞无细胞大型MIMO，用于不相关的里克里亚褪色通道
Max-Min Fair Wireless-Powered Cell-Free Massive MIMO for Uncorrelated Rician Fading Channels
论文作者
论文摘要
本文考虑了无细胞的多输入多输出系统，其中多 - 安特纳访问点（APS）通过无线功率传输协助单安顿纳用户设备（UES）。 UES利用下行链路中收获的能量将上行链路飞行员和信息信号传输到APS。我们考虑实用的里奇亚人逐渐褪色，而在每个相干块中都相变的频道的视线组件。在此模型中得出了上行链路光谱效率（SE），并且在优化变量为AP和UE功率控制系数以及大规模褪色解码器的情况下，考虑了最大值公平性问题。目的是在APS和UES的传输功率约束下最大化用户的最小SE。提出了一种交替优化算法，以解决高度耦合的非凸问题的解决方案。
This paper considers cell-free massive multiple-input multiple-output systems where the multiple-antenna access points (APs) assist the single-antenna user equipments (UEs) by wireless power transfer. The UEs utilize the energy harvested in the downlink to transmit uplink pilot and information signals to the APs. We consider practical Rician fading with the line-of-sight components of the channels being phase-shifted in each coherence block. The uplink spectral efficiency (SE) is derived for this model and the max-min fairness problem is considered where the optimization variables are the AP and UE power control coefficients together with the large-scale fading decoding vectors. The objective is to maximize the minimum SE of the users under APs' and UEs' transmission power constraints. An alternating optimization algorithm is proposed for the solution of the highly-coupled non-convex problem.
