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Technology of Network & Communication
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1844-1848

Pilot allocation based on user location in massive MIMO systems

Zhang Jinyan
Jin Feng
Yin Lixin
Ma Dongya
Chongqing Key Lab of Mobile Communication Technology, Chongqing University of Posts & Telecommunications, Chongqing 400065, China

Abstract

The problem of pilot contamination caused by pilot multiplexing has become a bottleneck for its performance improvement in massive MIMO systems. To solve this problem, this paper proposed a pilot allocation scheme based on user location. In this scheme, the uplink power control method ensured that signal power of different users to the base station of their own cell were equal. In the case of power control, it defined the pilot contamination intensity of the interfering users to the target user as the ratio of the distance from the interfering user to the base station of interference cell to the distance of target cell. It allocated the same pilot to two users of different cell with less pilot contamination between users. The simulation results show that the proposed scheme can effectively improve the system capacity, reduces the performance gap between users and reduce the pilot contamination between users.

Foundation Support

长江学者和创新团队发展计划资助项目(IRT_16R72)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2018.01.0012
Publish at: Application Research of Computers Printed Article, Vol. 36, 2019 No. 6
Section: Technology of Network & Communication
Pages: 1844-1848
Serial Number: 1001-3695(2019)06-051-1844-05

Publish History

[2019-06-05] Printed Article

Cite This Article

张进彦, 金凤, 尹礼欣, 等. 大规模MIMO系统中基于用户位置的导频分配 [J]. 计算机应用研究, 2019, 36 (6): 1844-1848. (Zhang Jinyan, Jin Feng, Yin Lixin, et al. Pilot allocation based on user location in massive MIMO systems [J]. Application Research of Computers, 2019, 36 (6): 1844-1848. )

About the Journal

  • Application Research of Computers Monthly Journal
  • Journal ID ISSN 1001-3695
    CN  51-1196/TP

Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

Aiming at the urgently needed cutting-edge technology in this discipline, Application Research of Computers reflects the mainstream technology, hot technology and the latest development trend of computer application research at home and abroad in a timely manner. The main contents of the journal include high-level academic papers in this discipline, the latest scientific research results and major application results. The contents of the columns involve new theories of computer discipline, basic computer theory, algorithm theory research, algorithm design and analysis, blockchain technology, system software and software engineering technology, pattern recognition and artificial intelligence, architecture, advanced computing, parallel processing, database technology, computer network and communication technology, information security technology, computer image graphics and its latest hot application technology.

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