Low-Complexity Digital Predistortion of Concurrent Multiband RF Power Amplifiers
Artikel i vetenskaplig tidskrift, 2022

The complexity of digital predistortion (DPD) for the concurrent multiband (MB) power amplifier (PA) has been a bottleneck for 5G wireless communication. A low-complexity MB DPD model has been proposed to reduce the running time complexity of DPD models for concurrent MB scenarios. The proposed MB model can generate the Volterra format basis functions with odd orders, including in-band, cross-band, and intermodulation (IMD) basis terms for arbitrary carrier configurations with an arbitrary number of bands. The optimal basis functions within the band of interests will be selected using a basis-function search algorithm. The lower cost complexity and high model accuracy of the proposed MB model have been validated by the PA linearization experiments in comparison with the memory polynomial MB model.

low-cost complexity

Solid modeling

Computational modeling

digital predistortion (DPD)

Baseband

intermodulations (IMDs)

Concurrent multiband (MB)

Matching pursuit algorithms

Delays

modeling and/or linearization techniques

Complexity theory

odd orders

power amplifiers (PAs)

Predistortion

Författare

Wenhui Cao

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk

Siqi Wang

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk

Per Landin

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk

Thomas Eriksson

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk

IEEE Transactions on Microwave Theory and Techniques

0018-9480 (ISSN) 15579670 (eISSN)

Vol. 70 9 4308-4317

Ämneskategorier

Bioinformatik (beräkningsbiologi)

Inbäddad systemteknik

Reglerteknik

DOI

10.1109/TMTT.2022.3193907

Mer information

Senast uppdaterat

2024-07-27