Three-dimensional fading channel models: A survey of elevation angle research

Three-dimensional fading channel models: A survey of elevation angle research
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三维衰落信道模型:仰角研究综述

DOI:
10.1109/mcom.2014.6829967
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发表时间:
2014-06
影响因子:
11.2
通讯作者:
Xiang Cheng
Xiang Cheng
中科院分区:
计算机科学1区
文献类型:
--
作者:
Chun Pan;Feng Pei;Guangyi Liu;Xiang Cheng

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移动通信业务的爆炸式增长对未来无线通信的频谱效率提出了更高的要求。通过在基站上适当配置二维(2D)天线阵列,可以在不修改终端天线的情况下通过三维(3D)多用户多输入多输出(MIMO)技术提高系统容量。因此,信号将在三维空间中传播,在水平和垂直平面上都有角度色散。三维衰落信道模型对三维MIMO技术的研究和发展具有重要的推动作用,因此受到越来越多的关注。然而,现有的衰落信道模型大多关注方位角特性,而忽略了仰角的影响。本文综述了三维衰落信道模型的研究现状,重点介绍了仰角的相关研究。我们还报道了最近的一些三维MIMO的现场测量,并研究了仰角的综合传播特性。
The explosive increase of mobile traffic demands higher spectrum efficiency for future wireless communications. By properly configuring a 2-dimensional (2D) antenna array at the basestation, the system capacity can be improved with 3 dimensional (3D) multiuser Multiple Input and Multiple Output (MIMO) techniques without modifying the terminal antennas. Therefore, the signal will propagate in a 3D space with angle dispersion in both horizontal and vertical planes. Due to its role in facilitating research and development of 3D MIMO technology, the 3D fading channel model is receiving increasing attention. However, existing fading channel models mostly focus on the azimuth angle characteristics, while neglecting the elevation angle impact. This article provides a state of the art review on 3D fading channel models, emphasizing research related to the elevation angle. We also report some recent field measurements for 3D MIMO and investigate the comprehensive propagation characteristics of the elevation angle.
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