A system level evaluation of vertical sectorization for active antenna system

F. Zhang, Shaohui Sun, Qiubin Gao, Runhua Chen, Hui Li, Rakesh Tamrakar, Wenhong Chen
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引用次数: 3

Abstract

Active antenna system (AAS) is a system with features the ability of advanced beam-forming techniques to take full advantage of spatial freedom in cellular network deployment, which enables improvement in network capacity and coverage. One of recent applications for AAS is vertical sectorization where the conventional sector is split into two vertical sector, i.e. inner sector and outer sector. The user equipment (UE) connects to the better serving sector based on the level of received power. In this paper, the performance of massive multi-input multi-output (MIMO) system for vertical sectorization in terms of different inner sector downtilt and the ratio of the power transmitted by outer sector to power transmitted by inner sector are presented, the results have shown that when the difference of between downtilt of inner beam and downtilt of outer beam is varied to a fixed angle, the performance achieves a maximum level, and the power ratio of inner sector to outer sector is also crucial factor that impact on vertical sectorization system performance, simulation results demonstrate that the best performance can be achieved when the power ratio equal to 1.
有源天线系统垂直扇形的系统级评价
有源天线系统(AAS)是一种利用先进波束形成技术,充分利用蜂窝网络部署中的空间自由度,提高网络容量和覆盖范围的系统。AAS的最新应用之一是垂直部门,其中传统部门分为两个垂直部门,即内部部门和外部部门。用户设备(UE)根据接收到的功率水平连接到更好的服务扇区。本文分析了大规模多输入多输出(MIMO)垂直扇区系统在不同的内扇区下倾角和外扇区传输功率与内扇区传输功率之比下的性能,结果表明:当内光束下倾角与外光束下倾角之差达到一定角度时,系统性能达到最大;而内扇区与外扇区的功率比也是影响垂直扇区系统性能的关键因素,仿真结果表明,当功率比为1时,垂直扇区系统性能最佳。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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