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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/25316
Title: Linearization of concurrent tri-band transmitters using 3-D phase-aligned pruned volterra model
Authors: Younes M.
Kwan A.
Rawat, Meenakshi
Ghannouchi F.M.
Published in: IEEE Transactions on Microwave Theory and Techniques
Abstract: This paper reports a novel digital predistortion (DPD) scheme for concurrent tri-band power amplifiers (PAs). The proposed tri-band DPD is based on a pruned Volterra model that takes into account the impact of the phase distortion observed in multi-band PAs as well as the compound amplitude distortion. By taking into account the phase variation effects across a wide frequency band, the proposed 3-D phase-aligned Volterra DPD can effectively compensate for the crosstalk effects between the fundamental frequencies, their harmonics, and intermodulation products due to the nonlinearity the tri-band PA exhibited. The performance of the proposed DPD is validated using a broadband Class-AB PA driven concurrently by three independent carrier-aggregated long-term evolution signals at separation frequencies around 100 MHz. The measurement results validate the accurate performance of the proposed 3-D phase-aligned pruned Volterra DPD in suppressing the in-band and cross-band intermodulation effects, and shows improvement over a basic 3-D tri-band DPD model that neglects phase variation effects across frequency. © 2013 IEEE.
Citation: IEEE Transactions on Microwave Theory and Techniques, 61(12): 4569-4578
URI: https://doi.org/10.1109/TMTT.2013.2287176
http://repository.iitr.ac.in/handle/123456789/25316
Issue Date: 2013
Keywords: Digital predistortion (DPD)
Long-term evolution (LTE) advanced carrier aggregation (CA)
Power amplifier (PA)
Tri-band
Volterra series
ISSN: 189480
Author Scopus IDs: 27568225900
8915604300
35339866500
7006217592
Author Affiliations: Younes, M., IRadio Laboratory, Department of Electrical and Computer Engineering, University of Calgary, Calgary, AB, T2N 1N4, Canada
Kwan, A., IRadio Laboratory, Department of Electrical and Computer Engineering, University of Calgary, Calgary, AB, T2N 1N4, Canada
Rawat, M., IRadio Laboratory, Department of Electrical and Computer Engineering, University of Calgary, Calgary, AB, T2N 1N4, Canada
Ghannouchi, F.M., IRadio Laboratory, Department of Electrical and Computer Engineering, University of Calgary, Calgary, AB, T2N 1N4, Canada
Funding Details: 
Corresponding Author: IRadio Laboratory, , Calgary, AB, T2N 1N4, Canada
Appears in Collections:Journal Publications [ECE]

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