利用终端传感器最小化多普勒传播影响

2020 IEEE International Black Sea Conference on Communications and Networking (BlackSeaCom) Pub Date : 2020-05-26 DOI:10.1109/BlackSeaCom48709.2020.9234964

A. Yudnikov, D. Zabirov, V. Lyashev, Mikhail Kirichenko

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引用次数: 1

摘要

在多径传播环境下，用户设备相对于gNB基站的移动会产生多普勒传播。它会导致传输信号的相位旋转、解调误差和信道容量的减小。本文讨论了从UE车载传感器(例如智能手机中的全球定位系统(GPS)和惯性测量单元(IMU)传感器)获得的UE位置和速度的利用，以及从地图服务获得的用于多普勒传播估计的散射位置数据。给出了其影响最小化的算法。利用Quadriga信道模型在MATLAB中进行了计算实验，从调制误差率(MER)的角度验证了该技术的有效性。

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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Doppler Spread Impact Minimization via Terminal Sensors Usage

Doppler spread appears when user equipment (UE) moves relative to gNodeB base station (gNB) in multipath propagation environment. It results in phase rotation of a transmitted signal, demodulation errors and channel capacity decreasing. The article discusses the utilization of UE location and velocity obtained from UE on-board sensors (e.g. Global Positioning System (GPS) and Inertial Measurement Unit (IMU) sensors in the case of smartphones) as well as scatters positions data acquired from map services for Doppler spread estimation. The algorithm for its impact minimization is presented. The computational experiments conducted in MATLAB using Quadriga channel model demonstrate the efficiency of proposed technique in terms of Modulation Error Ratio (MER).

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2020 IEEE International Black Sea Conference on Communications and Networking (BlackSeaCom)

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