论文标题
大型MIMO系统的杂交边际结构：完整连接V.S.部分连接
Hybrid Beamforming Structure for Massive MIMO System: Full-connection v.s. Partial-connection
论文作者
论文摘要
在本文中，我们比较了多源性大型MIMO系统的两个典型杂物型波束形成结构的性能，即全部和部分连接结构。考虑到对用户形成的模拟预编码器和零强度的数字预码器的模拟预编码器的假设，我们开发了一种明确的上限，以用于用户的模拟和数字 - 数字 - 代码频道增益，基于研究两个结构之间的关系。分析结果表明，完整连接结构并不总是比部分连接结构更好，并且揭示了适合每个结构的机制。进行模拟以验证分析结果。
In this article we compare the performance of two typical hyrbid beamforming structures for multiuser massive MIMO systems, i.e., the full- and partial-connection structures. Under the assumption of small angular spread for mmWave channels, given the analog precoder formed towards users and the zero-forcing digital precoder, we develop an explicit upper bound for the analog-and-digital-precoded channel gain of users, based on which the relationship between the two structures is investigated. The analysis results show that the full-connection structure is not always better than the partial-connection structure, and the regimes suitable for each structure are revealed. Simulations are conducted to validate the analysis results.
