Mixed RF-VLC Relaying Systems for High-Speed Rail Communication

In the proposed system setup, a communication link is established between base station (BS) and end-user (UE) via a relay node mounted on the high-speed train (HST). The information is conveyed over backhaul RF links between BS and relay and over VLC links between relay and UE inside the train. It i...

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Main Authors: Rupender Singh, Ijaz Ahmad, Jyrki Huusko
Format: Article
Language:English
Published: IEEE 2023-01-01
Series:IEEE Photonics Journal
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Online Access:https://ieeexplore.ieee.org/document/10210625/
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author Rupender Singh
Ijaz Ahmad
Jyrki Huusko
author_facet Rupender Singh
Ijaz Ahmad
Jyrki Huusko
author_sort Rupender Singh
collection DOAJ
description In the proposed system setup, a communication link is established between base station (BS) and end-user (UE) via a relay node mounted on the high-speed train (HST). The information is conveyed over backhaul RF links between BS and relay and over VLC links between relay and UE inside the train. It is assumed that RF links are encountered with dual shadowing due to slow-moving vehicles and pedestrians. Moreover, the relay node is not able to estimate the channel information perfectly due to HST mobility. Firstly, the statistical characteristics, such as the probability density function (PDF) and cumulative distribution function of the BS-relay link, are derived under imperfect channel information. Then, the system performance is examined by deriving the two key metrics, outage probability, and average bit error rate. Furthermore, we investigate the secrecy performance of the proposed system when the RF eavesdropper overhears the link between BS and relay and the VLC eavesdropper captures the information via the relay-UE link. To this end, the secure outage probability is derived into a closed form. Our results reveal that the proposed system setup can be adopted as a network architecture for existing as well as for future HST networks.
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spelling doaj-art-acb25882e7244e78ae02c0b09520a5bb2025-08-20T03:14:51ZengIEEEIEEE Photonics Journal1943-06552023-01-0115511210.1109/JPHOT.2023.330336210210625Mixed RF-VLC Relaying Systems for High-Speed Rail CommunicationRupender Singh0https://orcid.org/0000-0002-5252-4215Ijaz Ahmad1https://orcid.org/0000-0003-1101-8698Jyrki Huusko2https://orcid.org/0000-0003-1687-9243VTT Technical Research Center of Finland, Espoo, FinlandVTT Technical Research Center of Finland, Espoo, FinlandVTT Technical Research Center of Finland, Espoo, FinlandIn the proposed system setup, a communication link is established between base station (BS) and end-user (UE) via a relay node mounted on the high-speed train (HST). The information is conveyed over backhaul RF links between BS and relay and over VLC links between relay and UE inside the train. It is assumed that RF links are encountered with dual shadowing due to slow-moving vehicles and pedestrians. Moreover, the relay node is not able to estimate the channel information perfectly due to HST mobility. Firstly, the statistical characteristics, such as the probability density function (PDF) and cumulative distribution function of the BS-relay link, are derived under imperfect channel information. Then, the system performance is examined by deriving the two key metrics, outage probability, and average bit error rate. Furthermore, we investigate the secrecy performance of the proposed system when the RF eavesdropper overhears the link between BS and relay and the VLC eavesdropper captures the information via the relay-UE link. To this end, the secure outage probability is derived into a closed form. Our results reveal that the proposed system setup can be adopted as a network architecture for existing as well as for future HST networks.https://ieeexplore.ieee.org/document/10210625/Channel state information (CSI)double shadowed rician (DSR) fadingdoppler shifthigh-speed train (HST)visible light communication (VLC)
spellingShingle Rupender Singh
Ijaz Ahmad
Jyrki Huusko
Mixed RF-VLC Relaying Systems for High-Speed Rail Communication
IEEE Photonics Journal
Channel state information (CSI)
double shadowed rician (DSR) fading
doppler shift
high-speed train (HST)
visible light communication (VLC)
title Mixed RF-VLC Relaying Systems for High-Speed Rail Communication
title_full Mixed RF-VLC Relaying Systems for High-Speed Rail Communication
title_fullStr Mixed RF-VLC Relaying Systems for High-Speed Rail Communication
title_full_unstemmed Mixed RF-VLC Relaying Systems for High-Speed Rail Communication
title_short Mixed RF-VLC Relaying Systems for High-Speed Rail Communication
title_sort mixed rf vlc relaying systems for high speed rail communication
topic Channel state information (CSI)
double shadowed rician (DSR) fading
doppler shift
high-speed train (HST)
visible light communication (VLC)
url https://ieeexplore.ieee.org/document/10210625/
work_keys_str_mv AT rupendersingh mixedrfvlcrelayingsystemsforhighspeedrailcommunication
AT ijazahmad mixedrfvlcrelayingsystemsforhighspeedrailcommunication
AT jyrkihuusko mixedrfvlcrelayingsystemsforhighspeedrailcommunication