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2024-10-25
Research on Wireless Signal Coverage Enhancement in Mine Tunnels with Different Turning Angle Based on PRIS
By
Progress In Electromagnetics Research C, Vol. 149, 59-65, 2024
Abstract
Wireless communication is an essential part of future smart mines. However, the complex structure of mines, especially curved mine tunnels, makes the coverage of wireless signals drastically reduced compared to the ground, which increases the difficulty of wireless communication inside the mine. In order to improve the transmission characteristics of wireless signals in the underground non line of sight (NLOS) region, a new passive reconfigurable intelligent metasurface (PRIS) is proposed, which realises the reconfigurable characteristics of the PRIS beam through the principles of passive coding and splicing, and can be applied to different turning angle tunnels. Finally, the PRIS with different radiation directions is designed and simulated in the simulation software, and loaded into different turning angle tunnels for the simulation of tunnel power distribution. By comparing with the simulation results of unloaded PRIS, the PRIS is the most effective when the turning angle is 50˚. The overall power intensity of the tunnel is improved by 25 dBm, and the overall power intensity of the tunnel is improved by 14~17 dBm at other turning angles, which proves the effectiveness of passive splicing metasurface in the application of underground wireless communication blindness mending scenarios.
Citation
Bo Yin, Xiaoliang Li, Yun Li, and Xiangdong Fu, "Research on Wireless Signal Coverage Enhancement in Mine Tunnels with Different Turning Angle Based on PRIS," Progress In Electromagnetics Research C, Vol. 149, 59-65, 2024.
doi:10.2528/PIERC24082102
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