Orthogonal Sampling-Based Broad-Band Signal Generation With Low-Bandwidth Electronics

High-bandwidth signals are needed in many applications like radar, sensing, measurement and communications. Especially in optical networks, the sampling rate and analog bandwidth of digital-to-analog converters (DACs) is a bottleneck for further increasing data rates. To circumvent the sampling rate...

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Main Authors: Mohamed I. Hosni, Janosch Meier, Younus Mandalawi, Karanveer Singh, Paulomi Mandal, Ahmed H. Elghandour, Thomas Schneider
Format: Article
Language:English
Published: IEEE 2023-01-01
Series:IEEE Open Journal of the Communications Society
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10286285/
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author Mohamed I. Hosni
Janosch Meier
Younus Mandalawi
Karanveer Singh
Paulomi Mandal
Ahmed H. Elghandour
Thomas Schneider
author_facet Mohamed I. Hosni
Janosch Meier
Younus Mandalawi
Karanveer Singh
Paulomi Mandal
Ahmed H. Elghandour
Thomas Schneider
author_sort Mohamed I. Hosni
collection DOAJ
description High-bandwidth signals are needed in many applications like radar, sensing, measurement and communications. Especially in optical networks, the sampling rate and analog bandwidth of digital-to-analog converters (DACs) is a bottleneck for further increasing data rates. To circumvent the sampling rate and bandwidth problem of electronic DACs, we demonstrate the generation of wide-band signals with low-bandwidth electronics. This generation is based on orthogonal sampling with sinc-pulse sequences in <inline-formula> <tex-math notation="LaTeX">${N}$ </tex-math></inline-formula> parallel branches. The method not only reduces the sampling rate and bandwidth, at the same time the effective number of bits (ENOB) is improved, dramatically reducing the requirements on the electronic signal processing. In proof of concept experiments the generation of analog signals, as well as Nyquist shaped and normal data will be shown. In simulations we investigate the performance of 60 GHz data generation by 20 and 12 GHz electronics. The method can easily be integrated together with already existing electronic DAC designs and would be of great interest for all high-bandwidth applications.
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spelling doaj.art-32f18840b7b741a59b019691721f85422023-11-23T00:01:02ZengIEEEIEEE Open Journal of the Communications Society2644-125X2023-01-0142930293810.1109/OJCOMS.2023.332483910286285Orthogonal Sampling-Based Broad-Band Signal Generation With Low-Bandwidth ElectronicsMohamed I. Hosni0https://orcid.org/0000-0002-6583-0377Janosch Meier1https://orcid.org/0000-0001-7308-5867Younus Mandalawi2https://orcid.org/0000-0003-4686-2688Karanveer Singh3https://orcid.org/0000-0002-0438-6276Paulomi Mandal4https://orcid.org/0009-0007-1299-307XAhmed H. Elghandour5Thomas Schneider6https://orcid.org/0000-0001-6853-7128THz-Photonics Group, Institut f&#x00FC;r Hochfrequenztechnik, Technische Universit&#x00E4;t Braunschweig, Braunschweig, GermanyTHz-Photonics Group, Institut f&#x00FC;r Hochfrequenztechnik, Technische Universit&#x00E4;t Braunschweig, Braunschweig, GermanyTHz-Photonics Group, Institut f&#x00FC;r Hochfrequenztechnik, Technische Universit&#x00E4;t Braunschweig, Braunschweig, GermanyTHz-Photonics Group, Institut f&#x00FC;r Hochfrequenztechnik, Technische Universit&#x00E4;t Braunschweig, Braunschweig, GermanyTHz-Photonics Group, Institut f&#x00FC;r Hochfrequenztechnik, Technische Universit&#x00E4;t Braunschweig, Braunschweig, GermanyCommunication Department, Military Technical College, Cairo, EgyptTHz-Photonics Group, Institut f&#x00FC;r Hochfrequenztechnik, Technische Universit&#x00E4;t Braunschweig, Braunschweig, GermanyHigh-bandwidth signals are needed in many applications like radar, sensing, measurement and communications. Especially in optical networks, the sampling rate and analog bandwidth of digital-to-analog converters (DACs) is a bottleneck for further increasing data rates. To circumvent the sampling rate and bandwidth problem of electronic DACs, we demonstrate the generation of wide-band signals with low-bandwidth electronics. This generation is based on orthogonal sampling with sinc-pulse sequences in <inline-formula> <tex-math notation="LaTeX">${N}$ </tex-math></inline-formula> parallel branches. The method not only reduces the sampling rate and bandwidth, at the same time the effective number of bits (ENOB) is improved, dramatically reducing the requirements on the electronic signal processing. In proof of concept experiments the generation of analog signals, as well as Nyquist shaped and normal data will be shown. In simulations we investigate the performance of 60 GHz data generation by 20 and 12 GHz electronics. The method can easily be integrated together with already existing electronic DAC designs and would be of great interest for all high-bandwidth applications.https://ieeexplore.ieee.org/document/10286285/Broad-band signal generationENOBjitterorthogonal samplingsub-samplingtime interleaving
spellingShingle Mohamed I. Hosni
Janosch Meier
Younus Mandalawi
Karanveer Singh
Paulomi Mandal
Ahmed H. Elghandour
Thomas Schneider
Orthogonal Sampling-Based Broad-Band Signal Generation With Low-Bandwidth Electronics
IEEE Open Journal of the Communications Society
Broad-band signal generation
ENOB
jitter
orthogonal sampling
sub-sampling
time interleaving
title Orthogonal Sampling-Based Broad-Band Signal Generation With Low-Bandwidth Electronics
title_full Orthogonal Sampling-Based Broad-Band Signal Generation With Low-Bandwidth Electronics
title_fullStr Orthogonal Sampling-Based Broad-Band Signal Generation With Low-Bandwidth Electronics
title_full_unstemmed Orthogonal Sampling-Based Broad-Band Signal Generation With Low-Bandwidth Electronics
title_short Orthogonal Sampling-Based Broad-Band Signal Generation With Low-Bandwidth Electronics
title_sort orthogonal sampling based broad band signal generation with low bandwidth electronics
topic Broad-band signal generation
ENOB
jitter
orthogonal sampling
sub-sampling
time interleaving
url https://ieeexplore.ieee.org/document/10286285/
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