Elevation Power Spectrum Measurement and Interference Analysis of UMa I2O Uplink Channels

2019 International Conference on Computing, Networking and Communications (ICNC) Pub Date : 2019-02-01 DOI:10.1109/ICCNC.2019.8685622

Ruonan Zhang, Haochen Xu, Bin Li, Zhimeng Zhong, C. Li

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引用次数: 2

Abstract

Full-dimensional (FD) beamforming extends spatial multiplexing to the elevation domain and increases network capacity significantly. However, the beamforming employing a large number of active antenna elements consumes great power and also causes interference among sectors. The multipath spatial propagation characteristics determines the beamforming performance and should be investigated carefully. This paper presents a field measurement campaign for the indoor-to-outdoor (I2O) uplink channels in a typical urban macro-cellular (UMa) scenario. The elevation power spectra (EPS) were obtained when the user equipment (UE) was on several floors. We have found that the EPS can be well modeled by the modified Laplacian distribution. Furthermore, we evaluate the interference between two UEs on different floors in the elevation multiplexing. Finally, we provide the advice to improve the energy efficiency of FDbeamforming. The obtained channel model can help with the design of the spatial multiplexing and also green communications.

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UMa I2O上行信道高程功率谱测量及干扰分析

全维波束形成将空间复用扩展到高程域，显著提高了网络容量。然而，采用大量有源天线单元的波束形成不仅功耗大，而且还会造成扇区之间的干扰。多径空间传播特性决定了系统的波束形成性能，需要仔细研究。本文介绍了在典型的城市宏蜂窝(UMa)场景中室内外(I2O)上行信道的现场测量活动。当用户设备(UE)位于多个楼层时，获得了高程功率谱(EPS)。我们发现，修正拉普拉斯分布可以很好地模拟EPS。此外，我们还评估了不同楼层的两个ue在高程复用中的干扰。最后，提出了提高fdm波束成形能量效率的建议。所得到的信道模型有助于空间复用的设计和绿色通信的实现。

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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2019 International Conference on Computing, Networking and Communications (ICNC)

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