9th International Conference on Communications and Networking in China

Research Article

3D Beamforming Methods with User-specific Elevation Beamfoming

Cite
BibTeX Plain Text
  • @INPROCEEDINGS{10.4108/icst.chinacom.2014.256338,
    author={zheng hu and rongke liu and shaoli kang and xin su and jin xu},
    title={3D Beamforming Methods with User-specific Elevation Beamfoming},
    proceedings={9th International Conference on Communications and Networking in China},
    publisher={IEEE},
    proceedings_a={CHINACOM},
    year={2015},
    month={1},
    keywords={3d beamforming 3d channel 3d-umi scenario 3d-uma scenario},
    doi={10.4108/icst.chinacom.2014.256338}
}
  • zheng hu
    rongke liu
    shaoli kang
    xin su
    jin xu
    Year: 2015
    3D Beamforming Methods with User-specific Elevation Beamfoming
    CHINACOM
    IEEE
    DOI: 10.4108/icst.chinacom.2014.256338
zheng hu1, rongke liu1,*, shaoli kang2, xin su2, jin xu3
  • 1: School of Electronic and Information Engineering, Beihang University, Beijing, China
  • 2: State Key Laboratory of Wireless Mobile Communications, China Academy of Telecommunications Technology, Beijing, China
  • 3: State Key Laboratory of Wireless School of Information and Communication Engineering, Beijing University of posts and telecommunications, Beijing, China
*Contact email: rongke.liu@buaa.edu.cn

Abstract

In recent years, attentions have been focused on 3D (three-dimensional) beamforming which can improve cell average and cell edge throughput and eliminate the interference to adjacent cells. In the work towards calibration of 3D channel model, it seems that elevation beamforming with fixed electrical downtilt of 102 degrees has a good SINR (signal to interference and noise ratio) performance in 3D-UMi (Urban Micro) and 3D-UMa (Urban Macro) scenarios. In order to improve the user’s SINR of elevation beamforming, in this paper, two userspecific elevation beamforming methods are proposed to improve the performance, one (method I) selecting the EoD (elevation angle of departure ) as the electrical downtilt for each user, the other (method II) selecting the optimal electrical downtilt by considering user signal strength and inter-cell interference. Simulation results with the 3D channel model show that method I achieves a little improvement in 3D-UMi scenario but poor performance in 3D-UMa scenario compared with the fixed 102- degree elevation beamforming method from SINR. Method II in both scenarios outperforms the fixed downtilt method from SINR.

Keywords
3d beamforming 3d channel 3d-umi scenario 3d-uma scenario
Published
2015-01-21
Publisher
IEEE
Appears in
IEEEXplore
http://dx.doi.org/10.4108/icst.chinacom.2014.256338
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