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Behavioral modeling...
Behavioral modeling and linearization of crosstalk and memory effects in RF MIMO transmitters
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- Amin, Shoaib (author)
- KTH,Signalbehandling,ACCESS Linnaeus Centre,Högskolan i Gävle,Elektronik
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- Landin, Per (author)
- Chalmers University of Technology
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- Händel, Peter (author)
- Högskolan i Gävle,KTH,Signalbehandling,ACCESS Linnaeus Centre,Elektronik,ACCESS Linnaeus Centre, Signal Processing Lab, KTH Royal Institute of Technology
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- Rönnow, Daniel (author)
- Högskolan i Gävle,Elektronik
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(creator_code:org_t)
- 2014
- 2014
- English.
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In: IEEE transactions on microwave theory and techniques. - 0018-9480 .- 1557-9670. ; 62:4, s. 810-823
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Abstract
Subject headings
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- This paper proposes three novel models for behavioral modeling and digital pre-distortion (DPD) of nonlinear 2 x 2 multiple-input multiple-output (MIMO) transmitters in the presence of crosstalk. The proposed models are extensions of the single-input single-output generalized memory polynomial model. Three types of crosstalk effects were studied and characterized as linear, nonlinear, and nonlinear & linear crosstalk. A comparative study was performed with previously published models for the linearization of crosstalk in a nonlinear 2 x 2 MIMO transmitter. The experiments indicate that, depending on the type of crosstalk, the selection of the correct model in the transmitter is necessary for behavioral modeling and sufficient DPD performance. The effects of coherent and partially noncoherent signal generation on the performance of DPD were also studied. For crosstalk levels of 30 dB, the difference in the normalized mean square error and adjacent channel power ratio was found to be 3-4 dB between coherent and partially noncoherent signal generation.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
Keyword
- Behavioral modeling
- digital pre-distortion (DPD)
- multiple-input multiple-output (MIMO)
- nonlinear and linear crosstalk
- power amplifiers (PAs)
- RF
Publication and Content Type
- ref (subject category)
- art (subject category)
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