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Performance Analysis and Evaluation for Active Antenna Arrays Under Three-Dimensional Wireless Channel Model

文献类型： 外文期刊

作者： Li, Guodong 1 ; Wu, Jinsong 3 ; Chen, Zhixin 1 ; Luo, Xiong 4 ; Tang, Taolin 1 ; Xu, Zhiqiang 1 ;

作者机构： 1.Chinese Acad Fishery Sci, Fishery Machinery & Instrument Res Inst, Shanghai 200092, Peoples R China

2.Joint Lab Deep Blue Fishering Engn & Qingdao Natl, Qingdao 266000, Peoples R China

3.Univ Chile, Dept Elect Engn, Santiago 8370451, Chile

4.Univ Sci & Technol Beijing, Sch Comp & Commun Engn, Beijing 100083, Peoples R China

5.Beijing Key Lab Knowledge Engn Mat Sci, Beijing 100083, Peoples R China

关键词： 3-dimensional (3D) channel model; active antenna array; downtilt; beamwidth

期刊名称：IEEE ACCESS （ 影响因子：3.367； 五年影响因子：3.671 ）

ISSN： 2169-3536

年卷期： 2018 年 6 卷

页码：

收录情况： SCI

摘要： In this paper, we establish a full 3-D channel model to support the performance analysis and evaluation of active antenna array (AAA)-based wireless communication systems. We analyze and compare the impact of three different downtilt methods employed in AAA antennas, electrical downtilt (ET), mechanical downtilt (MT), hybrid downtilt (the combination of ET and MT), on the antenna patterns, which would notably impact the performance of mobile wireless communication systems. We compare the performances of the wireless communication system throughput based on the 2-D and 3-D wireless channel models using passive antenna arrays. We also investigate the system performance in terms of the capacity and coverage with different AAAs under the 3-D channel. After the performance analysis and evaluation, we have observed that the downtilt optimization may introduce significant gains in coverage and capacity for individual antennas with smaller beamwidth of the vertical patterns, but may not lead to notable gains for individual antennas with relative larger beamwidth of the vertical patterns.

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