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In Situ Assessment of Uplink Duty Cycles for 4G and 5G Wireless Communications

Günter Vermeeren (Onderzoeker); Leen Verloock (Onderzoeker); Sam Aerts (Onderzoeker); Luc Martens (Onderzoeker); Wout Joseph (Onderzoeker)

In this presented study, we measured in situ the uplink duty cycles of a smartphone for 5G NR and 4G LTE for a total of six use cases covering voice, video, and data applications. The duty cycles were assessed at ten positions near a 4G and 5G base-station site in Belgium. For Twitch, VoLTE, and WhatsApp, …

2025-05-09TechniekArtikel

A comprehensive review of 5G NR RF-EMF exposure assessment technologies: fundamentals, advancements, challenges, niches, and implications

Erdal Korkmaz (Onderzoeker); Sam Aerts (Onderzoeker); Richard Coesoij (Onderzoeker); Chhavi Raj Bhatt (Onderzoeker); Maarten Velghe (Onderzoeker); Loek Colussi (Onderzoeker); Derek Land (Onderzoeker); Nikolaos Petroulakis (Onderzoeker); Marco Spirito (Onderzoeker); J.F.B. (John) Bolte (Onderzoeker)

This review offers a detailed examination of the current landscape of radio frequency (RF) electromagnetic field (EMF) assessment tools, ranging from spectrum analyzers and broadband field meters to area monitors and custom-built devices. The discussion encompasses both standardized and non-standardized …

2024-11-01TechniekArtikel

An Assessment of Extrapolated Field Strengths Versus Distance, Measurement Time, and Induced Traffic From 5G Base Station in C-Band

Sangin Qahtan Wali (Onderzoeker); Aduwati Sali (Onderzoeker); Darko Šuka (Onderzoeker); Sam Aerts (Onderzoeker); Mohammed Alkurayşi (Onderzoeker); Lu Li (Onderzoeker); Alyani Ismail (Onderzoeker); Fazirulhisyam Hashim (Onderzoeker); Yasser A. Alsaidosh (Onderzoeker); Víctor P. Gil Jiménez (Onderzoeker); Manfred Ruttner (Onderzoeker); Anwar Faizd Osman (Onderzoeker)

This study evaluates the maximum theoretical exposure to radiofrequency (RF) electromag- netic fields (EMFs) from a Fifth-generation (5G) New Radio (NR) base station (BS) while using four commonly used mobile applications: YouTube for video streaming, WhatsApp for voice calls, Instagram for posting pictures …

2024-08-22TechniekArtikel

A Comparative Study of In Situ Methodologies for Assessment of RF EMF Exposure From a 5G FR2 Base Station

Samuel Goegebeur (Onderzoeker); Kenneth Deprez (Onderzoeker); Davide Colombi (Onderzoeker); Jens Eilers Bischoff (Onderzoeker); Carla Di Paola (Onderzoeker); Bram Stroobandt (Onderzoeker); Leen Verloock (Onderzoeker); Sam Aerts (Onderzoeker); Christer Törnevik (Onderzoeker); Wout Joseph (Onderzoeker)

In this work, in situ measurements of the radio frequency electromagnetic field exposure have been conducted for an indoor massive MIMO 5G base station operating at 26–28 GHz. Measurements were performed at six different positions (at distances between 9.94 and 14.32 m from the base station), of which …

2024-07-05TechniekArtikel

aiGrunn: Testing chatGPT checkers

Groenboom, Rix; Top, Arend

Testing chatGPT checkersDe opkomst van AI-technologie voor het genereren van teksten heeft in het afgelopen jaar een enorme vlucht genomen. De invloed van deze ontwikkeling begint op vele vlakken van de maatschappij steeds duidelijker te worden.Ook voor het onderwijs leidt dit tot vragen in hoeverre …

2023-11-28AlgemeenConferentiebijdrage

AUTOMATED DOCKING OF TRACTOR SEMITRAILER WITH DRIVER IN THE LOOP VIA 5G TELEOPERATION

Dixon Devasia (Onderzoeker); Nikhil Muthakana (Onderzoeker); Gijs van Stekelenburg (Onderzoeker); Bas Hetjes (Onderzoeker); Rakshith Kusumakar (Onderzoeker); Oliver Held (Onderzoeker); Jakub Juza (Onderzoeker)

The logistics sector is continually seeking innovations to improve service productivity and profitability in freight transport, such as reduced fuel consumption and automation in warehouses. However, the road transport sector in Europe currently faces challenges such as a shortage of drivers, unused …

2023-11-06TechniekConferentiebijdrage

Calibrated measurements of the EMF enhancement in the downlink of a 6G distributed antenna array testbed

Sergei Shikhantsov (Onderzoeker); Haolin Li (Onderzoeker); Sam Aerts (Onderzoeker); Olivier Caytan (Onderzoeker); Guy Torfs (Onderzoeker); Piet Demeester (Onderzoeker); Luc Martens (Onderzoeker); Wout Joseph (Onderzoeker)

With this contribution, the results of the measurement campaign performed with a synchronously distributed antenna array testbed operating at the center frequency of 3.686 GHz are presented. For the first time, to the best of the authors’ knowledge, the electric field distribution indu ced by coherent …

2023-08-19TechniekConferentiebijdrage

A Low-cost EMF Field Sensor for 5G EMF Exposure Measurements

Erdal Korkmaz (Lid Lectoraat); Stephan Littel (Lid Lectoraat); Marco Spirito (Onderzoeker); J.F.B. (John) Bolte (Lector)

A low-cost sensornode is introduced to monitor the 5G EMF exposure in the Netherlands for the four FR1 frequency bands. The sensornode is validated with in-lab measurements both with CW signals as for QAM signals and perform for both cases and for all frequency bands an error less than 1 dB for a dynamic …

2023-06-18TechniekConferentiebijdrage

Comparison of Low-Cost 5G Electromagnetic Field Sensors

Kenneth Deprez (Onderzoeker); Loek Colussi (Onderzoeker); Erdal Korkmaz (Lid Lectoraat); Sam Aerts (Lid Lectoraat); Derek Land (Lid Lectoraat); Stephan Littel (Lid Lectoraat); Leen Verloock (Onderzoeker); David Plets (Onderzoeker); Wout Joseph (Onderzoeker); J.F.B. (John) Bolte (Lector)

This paper compares different low-cost sensors that can measure (5G) RF-EMF exposure. The sensors are either commercially available (off-the-shelf Software Defined Radio (SDR) Adalm Pluto) or constructed by a research institution (i.e., imec-WAVES, Ghent University and Smart Sensor Systems research group …

2023-03-21TechniekArtikel

Case study 5G connectiviteit: smart vest with realtime edge-computing

Bredek, Jos

2023-01-13AlgemeenConferentiebijdrage

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