Cellular Digital Post-Distortion: Signal Processing Methods and RF Measurements

Huseyin Babaroglu; Lauri Anttila; Guixian Xu; Matias Turunen; Markus Allén; Mikko Valkama

doi:10.1109/WAMICON57636.2023.10124889

Cellular Digital Post-Distortion: Signal Processing Methods and RF Measurements

Huseyin Babaroglu, Lauri Anttila, Guixian Xu, Matias Turunen, Markus Allén, Mikko Valkama

Sähkötekniikka

Tutkimustuotos: Konferenssiartikkeli › Tieteellinen › vertaisarvioitu

6 Sitaatiot (Scopus)

99 Lataukset (Pure)

Abstrakti

In this paper, we study the feasibility of digital post-distortion (DPoD) based mitigation of transmitter nonlinear distortion in cellular networks. With specific emphasis on downlink, we describe a computationally efficient one-shot method to estimate and mitigate the cascaded multipath channel and transmitter nonlinear distortion effects at terminal receiver, building on demodulation reference symbols (DMRSs). We also describe a DMRS boosting approach to match the envelope characteristics of the DMRS and the actual data-bearing multicarrier symbols such that accurate mitigation is feasible. We provide RF measurement results with a state-of-the-art 28 GHz active antenna array and 256-QAM data modulation, demonstrating larger performance enhancements in received signal error vector magnitude (EVM) compared to existing computationally expensive iterative methods.

Alkuperäiskieli	Englanti
Otsikko	2023 IEEE Wireless and Microwave Technology Conference, WAMICON 2023
Kustantaja	IEEE
Sivut	25-28
Sivumäärä	4
ISBN (elektroninen)	9798350398649
ISBN (painettu)	9798350398656
DOI - pysyväislinkit	https://doi.org/10.1109/WAMICON57636.2023.10124889
Tila	Julkaistu - 2023
OKM-julkaisutyyppi	A4 Artikkeli konferenssijulkaisussa
Tapahtuma	IEEE Wireless and Microwave Technology Conference - Melbourne, Yhdysvallat Kesto: 17 huhtik. 2023 → 18 huhtik. 2023

Conference

Conference	IEEE Wireless and Microwave Technology Conference
Maa/Alue	Yhdysvallat
Kaupunki	Melbourne
Ajanjakso	17/04/23 → 18/04/23

Julkaisufoorumi-taso

Jufo-taso 0

!!ASJC Scopus subject areas

Computer Networks and Communications
Electrical and Electronic Engineering
Electronic, Optical and Magnetic Materials
Instrumentation

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Pääsy asiakirjaan

10.1109/WAMICON57636.2023.10124889

Cellular Digital Post-Distortion
This publication is copyrighted. You may download, display and print it for Your own personal use. Commercial use is prohibited.
Accepted author manuscript, 814 KBLisenssi: Unspecified

https://urn.fi/URN:NBN:fi:tuni-202309188250Lisenssi: Unspecified

Siteeraa tätä

@inproceedings{abeb3b2ec9344dbda63f22e7b9a9736a,

title = "Cellular Digital Post-Distortion: Signal Processing Methods and RF Measurements",

abstract = "In this paper, we study the feasibility of digital post-distortion (DPoD) based mitigation of transmitter nonlinear distortion in cellular networks. With specific emphasis on downlink, we describe a computationally efficient one-shot method to estimate and mitigate the cascaded multipath channel and transmitter nonlinear distortion effects at terminal receiver, building on demodulation reference symbols (DMRSs). We also describe a DMRS boosting approach to match the envelope characteristics of the DMRS and the actual data-bearing multicarrier symbols such that accurate mitigation is feasible. We provide RF measurement results with a state-of-the-art 28 GHz active antenna array and 256-QAM data modulation, demonstrating larger performance enhancements in received signal error vector magnitude (EVM) compared to existing computationally expensive iterative methods.",

keywords = "5G, 6G, active array, digital post-distortion, energy-efficiency, nonlinear distortion, power amplifiers",

author = "Huseyin Babaroglu and Lauri Anttila and Guixian Xu and Matias Turunen and Markus All{\'e}n and Mikko Valkama",

note = "Publisher Copyright: {\textcopyright} 2023 IEEE.; IEEE Wireless and Microwave Technology Conference ; Conference date: 17-04-2023 Through 18-04-2023",

year = "2023",

doi = "10.1109/WAMICON57636.2023.10124889",

language = "English",

isbn = "9798350398656",

pages = "25--28",

booktitle = "2023 IEEE Wireless and Microwave Technology Conference, WAMICON 2023",

publisher = "IEEE",

address = "United States",

}

Babaroglu, H , Anttila, L, Xu, G, Turunen, M , Allén, M & Valkama, M 2023, Cellular Digital Post-Distortion: Signal Processing Methods and RF Measurements. julkaisussa 2023 IEEE Wireless and Microwave Technology Conference, WAMICON 2023. IEEE, Sivut 25-28, IEEE Wireless and Microwave Technology Conference, Melbourne, Yhdysvallat, 17/04/23. https://doi.org/10.1109/WAMICON57636.2023.10124889

TY - GEN

T1 - Cellular Digital Post-Distortion

T2 - IEEE Wireless and Microwave Technology Conference

AU - Babaroglu, Huseyin

AU - Anttila, Lauri

AU - Xu, Guixian

AU - Turunen, Matias

AU - Allén, Markus

AU - Valkama, Mikko

PY - 2023

Y1 - 2023

N2 - In this paper, we study the feasibility of digital post-distortion (DPoD) based mitigation of transmitter nonlinear distortion in cellular networks. With specific emphasis on downlink, we describe a computationally efficient one-shot method to estimate and mitigate the cascaded multipath channel and transmitter nonlinear distortion effects at terminal receiver, building on demodulation reference symbols (DMRSs). We also describe a DMRS boosting approach to match the envelope characteristics of the DMRS and the actual data-bearing multicarrier symbols such that accurate mitigation is feasible. We provide RF measurement results with a state-of-the-art 28 GHz active antenna array and 256-QAM data modulation, demonstrating larger performance enhancements in received signal error vector magnitude (EVM) compared to existing computationally expensive iterative methods.

AB - In this paper, we study the feasibility of digital post-distortion (DPoD) based mitigation of transmitter nonlinear distortion in cellular networks. With specific emphasis on downlink, we describe a computationally efficient one-shot method to estimate and mitigate the cascaded multipath channel and transmitter nonlinear distortion effects at terminal receiver, building on demodulation reference symbols (DMRSs). We also describe a DMRS boosting approach to match the envelope characteristics of the DMRS and the actual data-bearing multicarrier symbols such that accurate mitigation is feasible. We provide RF measurement results with a state-of-the-art 28 GHz active antenna array and 256-QAM data modulation, demonstrating larger performance enhancements in received signal error vector magnitude (EVM) compared to existing computationally expensive iterative methods.

KW - 5G

KW - 6G

KW - active array

KW - digital post-distortion

KW - energy-efficiency

KW - nonlinear distortion

KW - power amplifiers

U2 - 10.1109/WAMICON57636.2023.10124889

DO - 10.1109/WAMICON57636.2023.10124889

M3 - Conference contribution

AN - SCOPUS:85160915478

SN - 9798350398656

SP - 25

EP - 28

BT - 2023 IEEE Wireless and Microwave Technology Conference, WAMICON 2023

PB - IEEE

Y2 - 17 April 2023 through 18 April 2023

ER -

Cellular Digital Post-Distortion: Signal Processing Methods and RF Measurements

Abstrakti

Conference

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!!ASJC Scopus subject areas

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