RIS-based indoor wireless communication signal enhancement system

By utilizing the tunable performances of the reconfigurable intelligent surface (RIS) to manipulate the reflected electromagnetic waves, an indoor wireless communication signal enhancement system was constructed, which could improve the signal quality of the receiving terminal in where the initial w...

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Main Authors: Kui TANG, Qi HU, Junming ZHAO, Ke CHEN, Yijun FENG
Format: Article
Language:zho
Published: Editorial Department of Journal on Communications 2022-12-01
Series:Tongxin xuebao
Subjects:
Online Access:http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2022228/
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author Kui TANG
Qi HU
Junming ZHAO
Ke CHEN
Yijun FENG
author_facet Kui TANG
Qi HU
Junming ZHAO
Ke CHEN
Yijun FENG
author_sort Kui TANG
collection DOAJ
description By utilizing the tunable performances of the reconfigurable intelligent surface (RIS) to manipulate the reflected electromagnetic waves, an indoor wireless communication signal enhancement system was constructed, which could improve the signal quality of the receiving terminal in where the initial wireless signals were weak.First, a RIS unit cell with dynamically tunable phase characteristics was designed, and the dynamic change of the 2 bit reflection phases was realized by switching the working states of the two active diodes.Then, experiments were conducted to verify that the proposed RIS could dynamically reshape the beam direction.Finally, a host computer and field programmable gate array (FPGA) were used to realize the intelligent control of the coding sequences applied onto the proposed RIS.By changing the spatial phase distribution on the RIS aperture, the output beam could be controlled in real-time.By traversing the pre-loaded coding sequences, the enhancement of received signal in indoor wireless environments had been experimentally demonstrated.Both simulation and experiment results verify that the proposed RIS system can effectively and dynamically improve the quality of the indoor wireless signals.The received signal is increased by an average of 8.9 dB, with a maximum of 22 dB.The proposed work may provide basic hardware technical support for the optimization of 5G and the next-generation communication networks.
format Article
id doaj-art-6b222e3b8f864986bc6f5e89bba91f52
institution Kabale University
issn 1000-436X
language zho
publishDate 2022-12-01
publisher Editorial Department of Journal on Communications
record_format Article
series Tongxin xuebao
spelling doaj-art-6b222e3b8f864986bc6f5e89bba91f522025-01-14T06:28:32ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2022-12-0143243159390797RIS-based indoor wireless communication signal enhancement systemKui TANGQi HUJunming ZHAOKe CHENYijun FENGBy utilizing the tunable performances of the reconfigurable intelligent surface (RIS) to manipulate the reflected electromagnetic waves, an indoor wireless communication signal enhancement system was constructed, which could improve the signal quality of the receiving terminal in where the initial wireless signals were weak.First, a RIS unit cell with dynamically tunable phase characteristics was designed, and the dynamic change of the 2 bit reflection phases was realized by switching the working states of the two active diodes.Then, experiments were conducted to verify that the proposed RIS could dynamically reshape the beam direction.Finally, a host computer and field programmable gate array (FPGA) were used to realize the intelligent control of the coding sequences applied onto the proposed RIS.By changing the spatial phase distribution on the RIS aperture, the output beam could be controlled in real-time.By traversing the pre-loaded coding sequences, the enhancement of received signal in indoor wireless environments had been experimentally demonstrated.Both simulation and experiment results verify that the proposed RIS system can effectively and dynamically improve the quality of the indoor wireless signals.The received signal is increased by an average of 8.9 dB, with a maximum of 22 dB.The proposed work may provide basic hardware technical support for the optimization of 5G and the next-generation communication networks.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2022228/reconfigurable intelligent surfacewireless communicationindoor signal enhancementmicrowave
spellingShingle Kui TANG
Qi HU
Junming ZHAO
Ke CHEN
Yijun FENG
RIS-based indoor wireless communication signal enhancement system
Tongxin xuebao
reconfigurable intelligent surface
wireless communication
indoor signal enhancement
microwave
title RIS-based indoor wireless communication signal enhancement system
title_full RIS-based indoor wireless communication signal enhancement system
title_fullStr RIS-based indoor wireless communication signal enhancement system
title_full_unstemmed RIS-based indoor wireless communication signal enhancement system
title_short RIS-based indoor wireless communication signal enhancement system
title_sort ris based indoor wireless communication signal enhancement system
topic reconfigurable intelligent surface
wireless communication
indoor signal enhancement
microwave
url http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2022228/
work_keys_str_mv AT kuitang risbasedindoorwirelesscommunicationsignalenhancementsystem
AT qihu risbasedindoorwirelesscommunicationsignalenhancementsystem
AT junmingzhao risbasedindoorwirelesscommunicationsignalenhancementsystem
AT kechen risbasedindoorwirelesscommunicationsignalenhancementsystem
AT yijunfeng risbasedindoorwirelesscommunicationsignalenhancementsystem