Digital Predistorter with Real-Valued Feedback Employing Forward Model Estimation

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F18%3APU128891" target="_blank" >RIV/00216305:26220/18:PU128891 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1109/ICT.2018.8464937" target="_blank" >http://dx.doi.org/10.1109/ICT.2018.8464937</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/ICT.2018.8464937" target="_blank" >10.1109/ICT.2018.8464937</a>

Result language
angličtina
Original language name
Digital Predistorter with Real-Valued Feedback Employing Forward Model Estimation
Original language description
Digital predistorters (DPD) are used in modern communication systems to linearise nonlinear power amplifiers (PA) and maximise power efficiency. For their function, a feedback signal from the PA output is required. A conventional DPD uses a quadrature mixer and two analogue-to-digital converters (ADC) which consume additional power and increase system complexity. In this paper we have proposed an innovative technique which allows to use a nonquadrature RF mixer with one ADC in the feedback path. The DPD adaptation is noniterative and based on favoured indirect learning architecture. Firstly, the forward PA model is estimated and subsequently it is used to train DPD coefficients. We have verified and compared the proposed method with other DPD architectures in simulations. The results show that the proposed architecture can achieve the same results as a DPD with complex feedback samples and the other real-valued feedback architectures.
Czech name
—
Czech description
—

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of International Conference on Telecommunications (ICT 2018)
ISBN
978-1-5386-2320-6
ISSN
—
e-ISSN
—
Number of pages
5
Pages from-to
1-5
Publisher name
Neuveden
Place of publication
Neuveden
Event location
Saint Malo, France
Event date
Jun 26, 2018
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000446016500087

Similar results(10)