论文标题
共置的与分布式与半分布的MIMO：基于测量的评估
Co-Located vs Distributed vs Semi-Distributed MIMO: Measurement-Based Evaluation
论文作者
论文摘要
随着对无细胞大量多输入多输出（MIMO）系统的兴趣日益增长，必须分析单室内访问点（AP）与多ANTENNA AP的好处，以优化部署。在本文中，我们使用室内环境中测量和合成通道数据基于可实现的下行光谱效率进行了基于可实现的下行光谱效率的各种天线系统拓扑。我们假设多用户方案，分析共轭光束（或最大比率传输（MRT））和零孔（ZF）预编码方法。结果表明，半分布的多Antenna AP可以减少AP的数量，并且仍然可以达到可比较的速率，因为具有相同总天线数的完全分布的单人体AP。
With the growing interest in cell-free massive multiple-input multiple-output (MIMO) systems, the benefits of single-antenna access points (APs) versus multi-antenna APs must be analyzed in order to optimize deployment. In this paper, we compare various antenna system topologies based on achievable downlink spectral efficiency, using both measured and synthetic channel data in an indoor environment. We assume multi-user scenarios, analyzing both conjugate beamforming (or maximum-ratio transmission (MRT)) and zero-forcing (ZF) precoding methods. The results show that the semi-distributed multi-antenna APs can reduce the number of APs, and still achieve the comparable achievable rates as the fully-distributed single-antenna APs with the same total number of antennas.
