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Sofie Pollin

2 papers indexed

arxiveess.SP2026-07-24

Depthwise Separable CNN for D-MIMO Indoor Localization with Data Reduction

Georgios Mystriotis, Rodney Martinez Alonso, Achiel Colpaert, Sofie Pollin

Indoor localization using Distributed Multiple-Input Multiple-Output (D-MIMO) and machine learning (ML) achieves sub-centimeter accuracy but faces midhaul capacity bottlenecks when transmitting raw Channel State Information (CSI) in Open Radio Access Networks (O-RAN) architecture…

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arxiveess.SP2026-07-16

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

Cel Thys, Rodney Martinez Alonso, Ali H Alsarraf, Dominique Schreurs, Sofie Pollin

Due to the continuous increase in communication bandwidth and the use of highly efficient yet nonlinear power amplifiers, Digital Predistortion (DPD) algorithms are becoming increasingly complex. In particular, neural network (NN) based DPD approaches using Phase-Normalized NN ar…

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