Peak-power controlled digital predistorters for RF power amplifiers
2012 (English)In: IEEE transactions on microwave theory and techniques, ISSN 0018-9480, E-ISSN 1557-9670, Vol. 60, no 11, 3582-3590 p.Article in journal (Refereed) Published
This paper investigates the issue of predistorter blow-up, i.e., uncontrolled peak expansion caused by the predistorter. To control the peak expansion, an extension of the multistep indirect learning architecture (MS-ILA) is proposed by adding a constraint that describes the allowed peak power of the predistortion signal. The resulting optimization problem is shown to be convex and an optimization method is formulated to solve it.
Place, publisher, year, edition, pages
2012. Vol. 60, no 11, 3582-3590 p.
Linearization, Memory polynomials, Nonlinear systems, Optimization, Power amplifiers (PAs), System identification, Telecommunication
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-108054DOI: 10.1109/TMTT.2012.2213830ISI: 000310969100026ScopusID: 2-s2.0-84869208852OAI: oai:DiVA.org:kth-108054DiVA: diva2:579401
FunderSwedish Research CouncilICT - The Next Generation
QC 201212202012-12-202012-12-192013-04-11Bibliographically approved