30 citations · 66 across the 54 of their papers we have counts for
21 papers · 1 filter
Comparative Analysis and Behavioral Modelling of Power Amplifiers in FR3
Cel Thys, Rodney Martinez Alonso, Ali H Alsarraf +3
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…
Analysis and Approximation of Spatially Wideband Array Factor of Thinned Antenna Arrays
Marcin Wachowiak, André Bourdoux, Sofie Pollin
This work investigates the spatially wideband (SWB) array factor (AF) of linear thinned antenna arrays. The SWB AF is formulated as a matched filter and expressed as a spatially va…
RT-VSS: In-House Ray Tracing for Vital Signs Sensing in FR3 Band
Rudranil Chattopadhyay, Zhuangzhuang Cui, Achiel Colpaert +1
Vital Signs Sensing, enabled by the evolution of wireless communications, is inherently challenging as the chest's micro-Doppler signatures can be corrupted by multipath, body move…
Analysis and Approximation of a Spatially Wideband Antenna Array Factor
Marcin Wachowiak, André Bourdoux, Sofie Pollin
This work investigates the spatially wideband (SWB) antenna array factor (AF) of uniform linear arrays. First, the SWB AF approximation is derived for narrowband (NB) signals and a…
Near-Field Velocity Estimation and Doppler-Aware Localization in OFDM Massive MIMO
Qing Zhang, Dario Tagliaferri, Robbert Beerten +3
In Orthogonal Frequency Division Multiplexing (OFDM)-based massive Multiple-Input Multiple-Output (MIMO) near-field (NF) sensing, target motion induces an antenna-dependent bistati…
Depthwise Separable CNN for D-MIMO Indoor Localization with Data Reduction
Georgios Mystriotis, Rodney Martinez Alonso, Achiel Colpaert +1
Indoor localization using Distributed Multiple-Input Multiple-Output (D-MIMO) and machine learning (ML) achieves sub-centimeter accuracy but faces midhaul capacity bottlenecks when…
Low Complexity Neural Network Digital Predistortion of Wideband Power Amplifiers through Feature Selection
Cel Thys, Rodney Martinez Alonso, Ali H Alsarraf +2
Due to the continuous increase in communication bandwidth and the use of highly efficient yet nonlinear power amplifiers, Digital Predistortion (DPD) algorithms are becoming increa…
Multi-/Uni-Cast Non-Orthogonal Multiple Access-Based INAC
Yaoyu Zhang, Xin Sun, Tianwei Hou +4
With the rapid development of satellite communication and navigation, there is an urgent need to integrate both technologies to achieve reliable communication and precise navigatio…
Joint Mobile User Positioning and Passive Target Sensing using Optimized Sequential Beamforming
Aymen Hamrouni, Sofie Pollin, Hazem Sallouha
Integrated sensing and communication (ISAC) relies on monostatic sensing (MS) and bistatic positioning (BP) to enable comprehensive environmental awareness and user localization. H…
Disaggregated multi-domain interference classification for O-RAN
Dieter Verbruggen, Hazem Sallouha, Sofie Pollin
Spectrum sharing and dynamic spectrum reuse are becoming increasingly critical in modern wireless networks to address spectrum scarcity. However, these techniques inevitably increa…
Data Augmentation and Attention for massive MIMO-based Indoor Localization in Changing Environments
Luisa Schuhmacher, Hazem Sallouha, Ihsane Gryech +1
The demand for high-precision indoor localization has grown significantly with the rise of smart environments, industrial automation, and location-aware applications. While massive…
Sequential Processing Strategies in Fronthaul Constrained Cell-Free Massive MIMO Networks
Vida Ranjbar, Robbert Beerten, Marc Moonen +1
In a cell-free massive MIMO (CFmMIMO) network with a daisy-chain fronthaul, the amount of information that each access point (AP) needs to communicate with the next AP in the chain…
Experimental Characterization of ISAC Channel Mapping and Environment Awareness
Zhuangzhuang Cui, Rizqi Hersyandika, Haoqiu Xiong +1
In the context of integrated sensing and communications (ISAC), this paper presents an experimental investigation of the relationship between monostatic sensing and naturally bista…
Dualband OFDM Delay Estimation for Multi-Target Localization
Jialun Kou, Achiel Colpaert, Zhuangzhuang Cui +1
Integrated localization and communication systems aim to reuse communication waveforms for simultaneous data transmission and localization, but delay resolution is fundamentally li…
Robust Localization in OFDM-Based Massive MIMO through Phase Offset Calibration
Qing Zhang, Adham Sakhnini, Robbert Beerten +4
Accurate localization in Orthogonal Frequency Division Multiplexing (OFDM)-based massive Multiple-Input Multiple-Output (MIMO) systems depends critically on phase coherence across…
Efficient Channel Autoencoders for Wideband Communications leveraging Walsh-Hadamard interleaving
Cel Thys, Rodney Martinez Alonso, Sofie Pollin
This paper investigates how end-to-end (E2E) channel autoencoders (AEs) can achieve energy-efficient wideband communications by leveraging Walsh-Hadamard (WH) interleaved converter…
Experimental Validation of SBFD ISAC in an FR3 Distributed SIMO Testbed
Bixing Yan, Kwadwo Mensah Obeng Afrane, Achiel Colpaert +3
Integrated sensing and communication (ISAC) is a key enabler for future radio networks. This paper presents a sub-band full-duplex (SBFD) ISAC system that assigns non-overlapping O…
Inter-Cell Interference Rejection Based on Ultrawideband Walsh-Domain Wireless Autoencoding
Rodney Martinez Alonso, Cel Thys, Cedric Dehos +2
This paper proposes a novel technique for rejecting partial-in-band inter-cell interference (ICI) in ultrawideband communication systems. We present the design of an end-to-end wir…
Machine Learning on the Edge for Sustainable IoT Networks: A Systematic Literature Review
Luisa Schuhmacher, Jimmy Fernandez Landivar, Ihsane Gryech +3
The Internet of Things (IoT) has become integral to modern technology, enhancing daily life and industrial processes through seamless connectivity. However, the rapid expansion of…
Frequency-Adaptive Multi-Band Architecture for Upper Mid-Band MIMO Systems
Emiel Vanspranghels, Zhuangzhuang Cui, Sofie Pollin
FR3 (7-24 GHz), also referred to as the upper mid-band, has recently emerged as promising spectrum for 6G; however, its propagation and MIMO characteristics vary significa…
Site-Specific and Frequency-Dependent Channel Characterization and MIMO Performance in FR3
Zhuangzhuang Cui, Rudranil Chattopadhyay, Emiel Vanspranghels +1
Next-generation wireless systems aim to enable on-demand connectivity through dynamic spectrum utilization. Motivated by this vision, this paper investigates the propagation charac…