论文标题
关于Mustiuse Massive Mimo接力网络的上行链路性能，RF链有限
On Uplink Performance of Multiuser Massive MIMO Relay Network With Limited RF Chains
论文作者
论文摘要
本文在模拟放大和前向继电器的帮助下考虑了多源多输入多输出上行链路。基站装备了$ N_D $天线的大型阵列，但由较少数量的射频链支持。通过首先获得级联相位的两跳道通道的新结果，我们以封闭形式的厄尔贡速率获得了一个紧密的结合，以获得完美和量化的通道相信息。该速率的特征是两跳道通道的缩放等效信号噪声比的函数。这意味着可以将源和继电器功率分别缩放为$ 1/n_d^a $和$ 1/n_d^{1-a}〜（0 \！\！\！\ leq \！a \！然后，对于速率最大化，用封闭形式的解决方案优化了功率分配问题。仿真结果验证了我们得出的结果的观察结果。
This paper considers a multiuser massive multiple-input multiple-output uplink with the help of an analog amplify-and-forward relay. The base station equips a large array of $N_d$ antennas but is supported by a far smaller number of radio-frequency chains. By first deriving new results for a cascaded phase-aligned two-hop channel, we obtain a tight bound for the ergodic rate in closed form for both perfect and quantized channel phase information. The rate is characterized as a function of a scaled equivalent signal-to-noise ratio of the two-hop channel. It implies that the source and relay powers can be respectively scaled down as $1/N_d^a$ and $1/N_d^{1-a}~ (0\!\leq\!a\!\leq\!1)$ for an asymptotically unchanged sum rate. Then for the rate maximization, the problem of power allocation is optimized with closed-form solutions. Simulation results verified the observations of our derived results.
