OAM-based reconfigurable doppler shifts enable PAPR reduction for multi-carrier doppler diversity

Orbital Angular Momentum (OAM) is recognized as an intrinsic property of Electro-Magnetic (EM) waves. The orthogonality between multiple OAM modes is usually exploited to improve the spectral efficiency and transmission rate in wireless communications. In a recent study, we discovered that even when...

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Main Authors: Zhao, Yufei, Ge, Yao, Yang, Zhaojie, Ju, Gaohua, Ma, Lu, Lu, Yilong, Guan, Yong Liang
Other Authors: School of Electrical and Electronic Engineering
Format: Conference or Workshop Item
Language:English
Published: 2023
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Online Access:https://hdl.handle.net/10356/164960
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1649602023-03-03T07:58:27Z OAM-based reconfigurable doppler shifts enable PAPR reduction for multi-carrier doppler diversity Zhao, Yufei Ge, Yao Yang, Zhaojie Ju, Gaohua Ma, Lu Lu, Yilong Guan, Yong Liang School of Electrical and Electronic Engineering 2022 Asia-Pacific Microwave Conference (APMC) Engineering::Electrical and electronic engineering::Wireless communication systems Orbital Angular Momentum Rotating Doppler Shifts Orbital Angular Momentum (OAM) is recognized as an intrinsic property of Electro-Magnetic (EM) waves. The orthogonality between multiple OAM modes is usually exploited to improve the spectral efficiency and transmission rate in wireless communications. In a recent study, we discovered that even when the transceivers are stationary, a specific spatial Doppler shift can be generated by rotating the wavefront structure of the OAM helical beams. Furthermore, arbitrary integer rotational OAM Doppler shifts can be realized flexibly by using the recently popular digital encoding metasurfaces. The artificial Doppler signals can be widely used in various wireless transmission scenarios, such as Doppler spoofing stealth, Doppler index modulation, and frequency-hopping channels. As a specific example, this paper demonstrates that in the discontinuous Orthogonal Frequency Division Multiplexing (OFDM) systems, the Peak to Average Power Ratio (PAPR) degradation caused by superposition of multi-carrier signal for additional Doppler diversity can be greatly alleviated by means of the OAM-based reconfigurable Doppler shifts. Agency for Science, Technology and Research (A*STAR) Info-communications Media Development Authority (IMDA) National Research Foundation (NRF) Submitted/Accepted version This research is supported by the National Research Foundation under its Future Communications Research & Development Programme Grant No. FCP-NTU-RG-2021-015. 2023-03-03T07:58:27Z 2023-03-03T07:58:27Z 2022 Conference Paper Zhao, Y., Ge, Y., Yang, Z., Ju, G., Ma, L., Lu, Y. & Guan, Y. L. (2022). OAM-based reconfigurable doppler shifts enable PAPR reduction for multi-carrier doppler diversity. 2022 Asia-Pacific Microwave Conference (APMC), 485-487. https://dx.doi.org/10.23919/APMC55665.2022.9999832 978-4-902339-56-7 https://hdl.handle.net/10356/164960 10.23919/APMC55665.2022.9999832 485 487 en FCP-NTU-RG-2021-015 A19D6a0053 © 2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at: https://doi.org/10.23919/APMC55665.2022.9999832. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Electrical and electronic engineering::Wireless communication systems
Orbital Angular Momentum
Rotating Doppler Shifts
spellingShingle Engineering::Electrical and electronic engineering::Wireless communication systems
Orbital Angular Momentum
Rotating Doppler Shifts
Zhao, Yufei
Ge, Yao
Yang, Zhaojie
Ju, Gaohua
Ma, Lu
Lu, Yilong
Guan, Yong Liang
OAM-based reconfigurable doppler shifts enable PAPR reduction for multi-carrier doppler diversity
description Orbital Angular Momentum (OAM) is recognized as an intrinsic property of Electro-Magnetic (EM) waves. The orthogonality between multiple OAM modes is usually exploited to improve the spectral efficiency and transmission rate in wireless communications. In a recent study, we discovered that even when the transceivers are stationary, a specific spatial Doppler shift can be generated by rotating the wavefront structure of the OAM helical beams. Furthermore, arbitrary integer rotational OAM Doppler shifts can be realized flexibly by using the recently popular digital encoding metasurfaces. The artificial Doppler signals can be widely used in various wireless transmission scenarios, such as Doppler spoofing stealth, Doppler index modulation, and frequency-hopping channels. As a specific example, this paper demonstrates that in the discontinuous Orthogonal Frequency Division Multiplexing (OFDM) systems, the Peak to Average Power Ratio (PAPR) degradation caused by superposition of multi-carrier signal for additional Doppler diversity can be greatly alleviated by means of the OAM-based reconfigurable Doppler shifts.
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Zhao, Yufei
Ge, Yao
Yang, Zhaojie
Ju, Gaohua
Ma, Lu
Lu, Yilong
Guan, Yong Liang
format Conference or Workshop Item
author Zhao, Yufei
Ge, Yao
Yang, Zhaojie
Ju, Gaohua
Ma, Lu
Lu, Yilong
Guan, Yong Liang
author_sort Zhao, Yufei
title OAM-based reconfigurable doppler shifts enable PAPR reduction for multi-carrier doppler diversity
title_short OAM-based reconfigurable doppler shifts enable PAPR reduction for multi-carrier doppler diversity
title_full OAM-based reconfigurable doppler shifts enable PAPR reduction for multi-carrier doppler diversity
title_fullStr OAM-based reconfigurable doppler shifts enable PAPR reduction for multi-carrier doppler diversity
title_full_unstemmed OAM-based reconfigurable doppler shifts enable PAPR reduction for multi-carrier doppler diversity
title_sort oam-based reconfigurable doppler shifts enable papr reduction for multi-carrier doppler diversity
publishDate 2023
url https://hdl.handle.net/10356/164960
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