Sökning: id:"swepub:oai:DiVA.org:kth-154563" >
Combating the Dimen...
Combating the Dimensionality of Nonlinear MIMO Amplifier Predistortion by Basis Pursuit
-
- Zenteno, Efrain (författare)
- Högskolan i Gävle,KTH,Signalbehandling,Elektronik,ACCESS Linnaeus Centre, Department of Signal Processing, KTH Royal Institute of Technology, Stockholm
-
- Amin, Shoaib (författare)
- Högskolan i Gävle,KTH,Signalbehandling,Elektronik,ACCESS Linnaeus Centre, Department of Signal Processing, KTH Royal Institute of Technology, Stockholm
-
- Isaksson, Magnus (författare)
- Högskolan i Gävle,Elektronik
-
visa fler...
-
- Händel, Peter (författare)
- KTH,Signalbehandling,ACCESS Linnaeus Centre, Department of Signal Processing, KTH Royal Institute of Technology, Stockholm
-
- Rönnow, Daniel (författare)
- Högskolan i Gävle,Elektronik
-
visa färre...
-
(creator_code:org_t)
- 2014
- 2014
- Engelska.
-
Ingår i: Proceedings of the 44th European Microwave Conference. ; , s. 833-836
- Relaterad länk:
-
https://kth.diva-por... (primary) (Raw object)
-
visa fler...
-
https://hig.diva-por... (primary) (Raw object)
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
https://urn.kb.se/re...
-
visa färre...
Abstract
Ämnesord
Stäng
- A general description of nonlinear dynamic MIMOsystems, given by Volterra series, has significantly larger complex-ity than SISO systems. Modeling and predistortion of MIMOamplifiers consequently become unfeasible due to the largenumber of basis functions. We have designed digital predistortersfor a MIMO amplifier using a basis pursuit method for reducingmodel complexity. This method reduces the numerical problemsthat appear in MIMO Volterra predistorters due to the largenumber of basis functions. The number of basis functions wasreduced from 1402 to 220 in a 2x2 MIMO amplifier and from127 to 13 in the corresponding SISO case. Reducing the numberof basis functions caused an increase of approximately 1 dB ofmodel error and adjacent channel power ratio.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Kommunikationssystem (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Communication Systems (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
Nyckelord
- Digital pre distortion (DPD)
- MIMO power ampli- fiers
- LASSO
- basis pursuit
- power amplifier linearization.
- Electrical Engineering
- Elektro- och systemteknik
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)