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基于分布式可控相控天线阵列的毫米波大规模MIMO系统的位置估计

Position estimation with a millimeter-wave massive MIMO system based on distributed steerable phased antenna arrays.

作者信息

Vukmirović Nenad, Janjić Miloš, Djurić Petar M, Erić Miljko

机构信息

1School of Electrical Engineering, University of Belgrade, Belgrade, Serbia.

2Innovation Center of School of Electrical Engineering, University of Belgrade, Belgrade, Serbia.

出版信息

EURASIP J Adv Signal Process. 2018;2018(1):33. doi: 10.1186/s13634-018-0553-9. Epub 2018 Jun 5.

DOI:10.1186/s13634-018-0553-9
PMID:29904392
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5988789/
Abstract

In this paper, we propose a massive MIMO (multiple-input-multiple-output) architecture with distributed steerable phased antenna subarrays for position estimation in the mmWave range. We also propose localization algorithms and a multistage/multiresolution search strategy that resolve the problem of high side lobes, which is inherent in spatially coherent localization. The proposed system is intended for use in line-of-sight indoor environments. Time synchronization between the transmitter and the receiving system is not required, and the algorithms can also be applied to a multiuser scenario. The simulation results for the line-of-sight-only and specular multipath scenarios show that the localization error is only a small fraction of the carrier wavelength and that it can be achieved under reasonable system parameters including signal-to-noise ratios, antenna number/placement, and subarray apertures. The proposed concept has the potential of significantly improving the capacity and spectral/energy efficiency of future mmWave massive MIMO systems.

摘要

在本文中，我们提出了一种具有分布式可控相控天线子阵列的大规模多输入多输出（MIMO）架构，用于毫米波范围内的位置估计。我们还提出了定位算法和一种多级/多分辨率搜索策略，以解决空间相干定位中固有的高旁瓣问题。所提出的系统旨在用于视距室内环境。发射机和接收系统之间不需要时间同步，并且该算法还可以应用于多用户场景。仅视距和镜面多径场景的仿真结果表明，定位误差仅为载波波长的一小部分，并且在包括信噪比、天线数量/布局和子阵列孔径在内的合理系统参数下即可实现。所提出的概念具有显著提高未来毫米波大规模MIMO系统容量以及频谱/能量效率的潜力。

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