标题： 异构大规模MIMO：一种用于蜂窝网络中均匀服务的成本高效技术 显示英文标题

标题： Heterogeneous Massive MIMO: A Cost-Efficient Technique for Uniform Service in Cellular Networks

摘要： 大规模多输入多输出（MIMO）沿着两个方向发展：蜂窝和无蜂窝，每个方向都有其独特的优点和限制。 蜂窝方法在小区边缘的用户频谱效率较差，而无蜂窝方法由于大规模分布式基础设施而产生较高的实现成本。 本文介绍了一种新的网络范式，称为异构大规模MIMO（HmMIMO），它无缝集成了共置和分布式天线。 与两种传统范式不同，HmMIMO在每个小区的中心保留一个具有大型天线阵列的基站，并由部署在小区边缘的分布式天线辅助。 我们的研究结果表明，这种范式在性能和实现复杂性之间实现了有利的权衡。 显示英文摘要

摘要： Massive multi-input multi-output (MIMO) has evolved along two tracks: cellular and cell-free, each with unique advantages and limitations. The cellular approach suffers from worse user spectral efficiency at cell edges, whereas the cell-free approach incurs high implementation costs due to a large-scale distributed infrastructure. This paper introduces a novel networking paradigm, termed heterogeneous massive MIMO (HmMIMO), which seamlessly integrates co-located and distributed antennas. Differing from two conventional paradigms, HmMIMO remains a base station with a large antenna array at the center of each cell, aided by distributed antennas deployed at cell edges. Our findings demonstrate that this paradigm achieves a favorable trade-off between performance and implementation complexity.