Power efficiency model for MIMO transmitters including memory polynomial digital predistortion

Joep Zanen; Eric Klumperink; Bram  Nauta

doi:10.1109/TCSII.2020.3028493

Power efficiency model for MIMO transmitters including memory polynomial digital predistortion

Joep Zanen^*, Eric Klumperink, Bram Nauta

^*Corresponding author for this work

Integrated Circuit Design

Research output: Contribution to journal › Article › Academic › peer-review

11 Citations (Scopus)

149 Downloads (Pure)

Abstract

Multiple-input multiple-output (MIMO) beamforming array gain can make multi-antenna transmitters (TXs) more power efficient. However, these MIMO TXs require more complex digital predistortion (DPD). In this work, analytical expressions are derived for the power consumption of both MIMO power amplifier (PA) arrays and their respective DPD, taking into account the effects of precoding on PA output power and peak-toaverage power ratio (PAPR). It is shown that for complex DPD algorithms such as cross-over DPD (CO-DPD) in combination with wide bandwidths, the overall DPD power consumption can exceed the overall PA power consumption already for TXs for scenarios with more than two antennas.

Original language	English
Article number	9211753
Pages (from-to)	1183-1187
Number of pages	5
Journal	IEEE transactions on circuits and systems II: express briefs
Volume	68
Issue number	4
Early online date	2 Oct 2020
DOIs	https://doi.org/10.1109/TCSII.2020.3028493
Publication status	Published - 1 Apr 2021

Keywords

Digital predistortion
MIMO
Transmitter
Power amplifier
Digital signal processing
Efficiency
Power consumption

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10.1109/TCSII.2020.3028493

Zanen2021powerFinal published version, 1.67 MBLicence: Taverne

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title = "Power efficiency model for MIMO transmitters including memory polynomial digital predistortion",

abstract = "Multiple-input multiple-output (MIMO) beamforming array gain can make multi-antenna transmitters (TXs) more power efficient. However, these MIMO TXs require more complex digital predistortion (DPD). In this work, analytical expressions are derived for the power consumption of both MIMO power amplifier (PA) arrays and their respective DPD, taking into account the effects of precoding on PA output power and peak-toaverage power ratio (PAPR). It is shown that for complex DPD algorithms such as cross-over DPD (CO-DPD) in combination with wide bandwidths, the overall DPD power consumption can exceed the overall PA power consumption already for TXs for scenarios with more than two antennas. ",

keywords = "Digital predistortion, MIMO, Transmitter, Power amplifier, Digital signal processing, Efficiency, Power consumption",

author = "Joep Zanen and Eric Klumperink and Bram Nauta",

note = "Funding Information: Manuscript received July 16, 2020; revised September 10, 2020; accepted September 30, 2020. Date of publication October 2, 2020; date of current version March 26, 2021. This work is part of the TTW-Research Program MIRABEAM with project number 14689, which is financed by the Dutch Research Council (NWO). This brief was recommended by Associate Editor L. A. B. G. Oliveira. (Corresponding author: Joep Zanen.) The authors are with the Intedgrated Circuit Design Group, University of Twente, 7500 AE Enschede, The Netherlands (e-mail: [email protected]). Publisher Copyright: {\textcopyright} 2004-2012 IEEE.",

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AU - Klumperink, Eric

AU - Nauta, Bram

N1 - Funding Information: Manuscript received July 16, 2020; revised September 10, 2020; accepted September 30, 2020. Date of publication October 2, 2020; date of current version March 26, 2021. This work is part of the TTW-Research Program MIRABEAM with project number 14689, which is financed by the Dutch Research Council (NWO). This brief was recommended by Associate Editor L. A. B. G. Oliveira. (Corresponding author: Joep Zanen.) The authors are with the Intedgrated Circuit Design Group, University of Twente, 7500 AE Enschede, The Netherlands (e-mail: [email protected]). Publisher Copyright: © 2004-2012 IEEE.

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N2 - Multiple-input multiple-output (MIMO) beamforming array gain can make multi-antenna transmitters (TXs) more power efficient. However, these MIMO TXs require more complex digital predistortion (DPD). In this work, analytical expressions are derived for the power consumption of both MIMO power amplifier (PA) arrays and their respective DPD, taking into account the effects of precoding on PA output power and peak-toaverage power ratio (PAPR). It is shown that for complex DPD algorithms such as cross-over DPD (CO-DPD) in combination with wide bandwidths, the overall DPD power consumption can exceed the overall PA power consumption already for TXs for scenarios with more than two antennas.

AB - Multiple-input multiple-output (MIMO) beamforming array gain can make multi-antenna transmitters (TXs) more power efficient. However, these MIMO TXs require more complex digital predistortion (DPD). In this work, analytical expressions are derived for the power consumption of both MIMO power amplifier (PA) arrays and their respective DPD, taking into account the effects of precoding on PA output power and peak-toaverage power ratio (PAPR). It is shown that for complex DPD algorithms such as cross-over DPD (CO-DPD) in combination with wide bandwidths, the overall DPD power consumption can exceed the overall PA power consumption already for TXs for scenarios with more than two antennas.

KW - Digital predistortion

KW - MIMO

KW - Transmitter

KW - Power amplifier

KW - Digital signal processing

KW - Efficiency

KW - Power consumption

U2 - 10.1109/TCSII.2020.3028493

DO - 10.1109/TCSII.2020.3028493

M3 - Article

SN - 1549-7747

VL - 68

SP - 1183

EP - 1187

JO - IEEE transactions on circuits and systems II: express briefs

JF - IEEE transactions on circuits and systems II: express briefs

IS - 4

M1 - 9211753

ER -

Power efficiency model for MIMO transmitters including memory polynomial digital predistortion

Abstract

Keywords

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A Predistortion-less Digital MIMO Transmitter with DTC-Based Quadrature Imbalance Compensation

A Predistortion-less digital transmitter with –50 dB ACLR exploiting output conductance linearization

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