The optimal design of aperiodic/irregular clustered phased arrays for base stations (BSs) in multi-user multiple-input multiple-output (MU-MIMO) communication systems is addressed. The paper proposes an ad-hoc synthesis method aimed at maximizing the users traffic capacity within the cell served by the BS, while guaranteeing the sufficient level of signal at the terminals. Towards this end, the search of the optimal aperiodic clustering is carried out through a customized tiling technique able to consider both single and multiple tile shapes as well as to assure the complete coverage of the antenna aperture for the maximization of the directivity. Representative results, from a wide set of numerical examples concerned with realistic antenna models and benchmark 3GPP scenarios, are reported to assess the advantages of the irregular array architectures in comparison with regular/periodic layouts proposed by the standard development organizations, as well.

翻译：本文讨论了多用户多投入多产出(MU-MIMO)通信系统中基站定期/定期分组分级阵列的最佳设计,其中提出了一套特别综合方法,旨在尽可能扩大由BS所服务的单元内的用户交通能力,同时保证终端有足够的信号;为此,通过一种定制的计时技术,对周期分组进行最佳搜索,既能考虑单张和多张瓷形,又能确保天线孔径的完整覆盖,以尽量扩大直接性;据报告,代表通过一系列与现实天线模型和基准3GPP情景有关的大量数字实例,评估了非正规阵列结构与标准开发组织提议的定期/周期布局相比的优势,还评估了非正常阵列结构的优势。