Author

A. Alsarraf

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Preprint Oct 2026

Comparative Analysis and Behavioral Modelling of Power Amplifiers in FR3

Power amplifier (PA) nonlinearity is a critical transmitter impairment in the upper mid-band (7 GHz to 24 GHz), designated as Frequency Range 3 (FR3) in emerging 6G standardisation. The 3GPP PA model baseline, TR 38.803 Annex A, was derived from 2.1 GHz and 28 GHz measurements and has not been revisited yet for FR3 sta...

Cel Thys, Rodney Martinez Alonso, A. Alsarraf et al. · 0 citations

Preprint Jul 2026

Low Complexity Neural Network Digital Predistortion of Wideband Power Amplifiers through Feature Selection

This work proposes a low-complexity Feature Selection NN DPD architecture that employs an offline feature-engineering pipeline based on the Least Absolute Shrinkage and Selection Operator and the Minimum Redundancy Maximum Relevance algorithm to construct a compact and informative input representation.

Cel Thys, Rodney Martinez Alonso, A. Alsarraf et al. · 0 citations