High-Resolution Delay Spread of Wide-Band Wireless Link in Long Tunnels—Theory and Experimental Verification

The need for wireless communication appears everywhere, and with as few interruptions as possible. An extensive and in-depth study has been conducted on the limitations of wireless communication in pedestrian tunnels. Using an analytical mathematical ray tracing model, and performing tunnel measurem...

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Main Authors: Yehuda Taragin, Liat Rapaport, Niv Elkayamn, Gad A. Pinhasi, Yosef Pinhasi
Format: Article
Language:English
Published: MDPI AG 2022-07-01
Series:Electronics
Subjects:
Online Access:https://www.mdpi.com/2079-9292/11/14/2140
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author Yehuda Taragin
Liat Rapaport
Niv Elkayamn
Gad A. Pinhasi
Yosef Pinhasi
author_facet Yehuda Taragin
Liat Rapaport
Niv Elkayamn
Gad A. Pinhasi
Yosef Pinhasi
author_sort Yehuda Taragin
collection DOAJ
description The need for wireless communication appears everywhere, and with as few interruptions as possible. An extensive and in-depth study has been conducted on the limitations of wireless communication in pedestrian tunnels. Using an analytical mathematical ray tracing model, and performing tunnel measurements, with an autonomous measuring setup, the model was validated. An extraordinary wide band was used for the experiments, which also featured optical systems to ensure accurate results. Since the tunnel is narrow, the differences between the different paths are small, and in order to distinguish them a resolution of 0.2 ns was used. The RMS delay spread, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>σ</mi><mi>τ</mi></msub></semantics></math></inline-formula>, decreases throughout the tunnel, and at no point exceeds 1 ns.
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spelling doaj.art-8740d96fe4c54771b7a50f99c1b96c592023-12-01T22:05:08ZengMDPI AGElectronics2079-92922022-07-011114214010.3390/electronics11142140High-Resolution Delay Spread of Wide-Band Wireless Link in Long Tunnels—Theory and Experimental VerificationYehuda Taragin0Liat Rapaport1Niv Elkayamn2Gad A. Pinhasi3Yosef Pinhasi4Department of Electrical and Electronics Engineering, Ariel University, Ariel 40700, IsraelDepartment of Electrical and Electronics Engineering, Ariel University, Ariel 40700, IsraelDepartment of Electrical and Electronics Engineering, Ariel University, Ariel 40700, IsraelDepartment of Chemical Engineering, Ariel University, Ariel 40700, IsraelDepartment of Electrical and Electronics Engineering, Ariel University, Ariel 40700, IsraelThe need for wireless communication appears everywhere, and with as few interruptions as possible. An extensive and in-depth study has been conducted on the limitations of wireless communication in pedestrian tunnels. Using an analytical mathematical ray tracing model, and performing tunnel measurements, with an autonomous measuring setup, the model was validated. An extraordinary wide band was used for the experiments, which also featured optical systems to ensure accurate results. Since the tunnel is narrow, the differences between the different paths are small, and in order to distinguish them a resolution of 0.2 ns was used. The RMS delay spread, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>σ</mi><mi>τ</mi></msub></semantics></math></inline-formula>, decreases throughout the tunnel, and at no point exceeds 1 ns.https://www.mdpi.com/2079-9292/11/14/2140experimentPDPdelay spreadindoor propagationray tracingtunnels
spellingShingle Yehuda Taragin
Liat Rapaport
Niv Elkayamn
Gad A. Pinhasi
Yosef Pinhasi
High-Resolution Delay Spread of Wide-Band Wireless Link in Long Tunnels—Theory and Experimental Verification
Electronics
experiment
PDP
delay spread
indoor propagation
ray tracing
tunnels
title High-Resolution Delay Spread of Wide-Band Wireless Link in Long Tunnels—Theory and Experimental Verification
title_full High-Resolution Delay Spread of Wide-Band Wireless Link in Long Tunnels—Theory and Experimental Verification
title_fullStr High-Resolution Delay Spread of Wide-Band Wireless Link in Long Tunnels—Theory and Experimental Verification
title_full_unstemmed High-Resolution Delay Spread of Wide-Band Wireless Link in Long Tunnels—Theory and Experimental Verification
title_short High-Resolution Delay Spread of Wide-Band Wireless Link in Long Tunnels—Theory and Experimental Verification
title_sort high resolution delay spread of wide band wireless link in long tunnels theory and experimental verification
topic experiment
PDP
delay spread
indoor propagation
ray tracing
tunnels
url https://www.mdpi.com/2079-9292/11/14/2140
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AT nivelkayamn highresolutiondelayspreadofwidebandwirelesslinkinlongtunnelstheoryandexperimentalverification
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