Estimation of co-channel interference between cities caused by ducting and turbulence

doi:10.1088/1674-1056/ac339c

中国物理B ›› 2022, Vol. 31 ›› Issue (2): 24102-024102.doi: 10.1088/1674-1056/ac339c

Estimation of co-channel interference between cities caused by ducting and turbulence

Kai Yang(杨凯)¹, Zhensen Wu(吴振森)¹, Xing Guo(郭兴)^2,†, Jiaji Wu(吴家骥)², Yunhua Cao(曹运华)¹, Tan Qu(屈檀)², and Jiyu Xue(薛积禹)¹

1 School of Physics and Optoelectronic Engineering, Xidian University, Xi'an 710071, China;
2 School of Electronic Engineering, Xidian University, Xi'an 710071, China

收稿日期:2021-07-29 修回日期:2021-10-15 接受日期:2021-10-27 出版日期:2022-01-13 发布日期:2022-01-22
通讯作者: Xing Guo E-mail:guox@xidian.edu.cn
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 62005205, 62071359, and 61775175) and Natural Science Basic Research Program of Shaanxi, China (Grant No. 2020JQ-331).

Estimation of co-channel interference between cities caused by ducting and turbulence

Kai Yang(杨凯)¹, Zhensen Wu(吴振森)¹, Xing Guo(郭兴)^2,†, Jiaji Wu(吴家骥)², Yunhua Cao(曹运华)¹, Tan Qu(屈檀)², and Jiyu Xue(薛积禹)¹

1 School of Physics and Optoelectronic Engineering, Xidian University, Xi'an 710071, China;
2 School of Electronic Engineering, Xidian University, Xi'an 710071, China

Received:2021-07-29 Revised:2021-10-15 Accepted:2021-10-27 Online:2022-01-13 Published:2022-01-22
Contact: Xing Guo E-mail:guox@xidian.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 62005205, 62071359, and 61775175) and Natural Science Basic Research Program of Shaanxi, China (Grant No. 2020JQ-331).

摘要/Abstract

摘要： With the rapid development of the fifth-generation (5G) mobile communication technology, the application of each frequency band has reached the extreme, causing mutual interference between different modules. Hence, there is a requirement for detecting filtering and preventing interference. In the troposphere, over-the-horizon propagation occurs in atmospheric ducts and turbulent media. The effects of both ducting and turbulence can increase the probability of occurrence of long-distance co-channel interference (CCI), in turn, severely affecting the key performance indicators such as system access, handover and drop. In the 5G era, to ensure communication channels and information security, CCI must be reduced. This paper introduces a scattering parabolic equation algorithm for calculating signal propagation in atmospheric ducts on irregular terrain boundaries. It combines Hitney's radio physical optical model and Wagner's nonuniform turbulent scattering model for calculating the tropospheric scattering in an evaporation duct or a surface-based duct. The new model proposes a tropospheric scattering parabolic equation algorithm for various tropospheric duct environments. Finally, as a specific case, the topographical boundaries between several cities in the East China Plain were considered, and the over-the-horizon propagation loss was simulated for various ducting and turbulent environments. The simulation results were used to evaluate whether CCI would occur between cities in a specific environment.

关键词: atmospheric duct, tropospheric turbulence, co-channel interference, terrain parabolic equation

Abstract: With the rapid development of the fifth-generation (5G) mobile communication technology, the application of each frequency band has reached the extreme, causing mutual interference between different modules. Hence, there is a requirement for detecting filtering and preventing interference. In the troposphere, over-the-horizon propagation occurs in atmospheric ducts and turbulent media. The effects of both ducting and turbulence can increase the probability of occurrence of long-distance co-channel interference (CCI), in turn, severely affecting the key performance indicators such as system access, handover and drop. In the 5G era, to ensure communication channels and information security, CCI must be reduced. This paper introduces a scattering parabolic equation algorithm for calculating signal propagation in atmospheric ducts on irregular terrain boundaries. It combines Hitney's radio physical optical model and Wagner's nonuniform turbulent scattering model for calculating the tropospheric scattering in an evaporation duct or a surface-based duct. The new model proposes a tropospheric scattering parabolic equation algorithm for various tropospheric duct environments. Finally, as a specific case, the topographical boundaries between several cities in the East China Plain were considered, and the over-the-horizon propagation loss was simulated for various ducting and turbulent environments. The simulation results were used to evaluate whether CCI would occur between cities in a specific environment.

Key words: atmospheric duct, tropospheric turbulence, co-channel interference, terrain parabolic equation

中图分类号: (Electromagnetic wave propagation; radiowave propagation)

41.20.Jb

42.25.Dd (Wave propagation in random media) 42.25.Fx (Diffraction and scattering) 42.25.Gy (Edge and boundary effects; reflection and refraction)

Kai Yang(杨凯), Zhensen Wu(吴振森), Xing Guo(郭兴), Jiaji Wu(吴家骥), Yunhua Cao(曹运华), Tan Qu(屈檀), and Jiyu Xue(薛积禹). Estimation of co-channel interference between cities caused by ducting and turbulence[J]. 中国物理B, 2022, 31(2): 24102-024102.

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Estimation of co-channel interference between cities caused by ducting and turbulence

Estimation of co-channel interference between cities caused by ducting and turbulence

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