The widespread deployment of 5G networks is underway, but current implementations primarily rely on the FR1 spectrum, leaving the full potential of mmWave technology underutilized. Although milliliter wave (mmWave, 30-100 GHz) frequencies offer high data rates and low latency essential for the next generations of mobile systems, their adoption faces significant challenges, such as signal blockage, large antenna arrays, and the need for enhanced communication protocols.
Andrey Samuylov’s dissertation addresses some of these challenges by proposing new methods and models for evaluating and improving Quality of Service (QoS) in 5G mmWave cellular systems. It highlights the critical need to overcome issues like line-of-sight blockages and signal degradation in dynamic environments, which hinder consistent performance and user experience.
Samuylov’s results demonstrate that the use of bandwidth reservation offers a way to improve session continuity. Also, multi-connectivity significantly improves both user- and network-centric performance.
“By providing a mathematical and algorithmic framework for performance analysis, this research offers a contribution that may improve scalability and reliability of 5G mmWave systems in real-world deployments. It directly supports the growing demand for reliable, high-speed mobile connectivity, especially in the context of emerging technologies like autonomous vehicles, smart cities, and immersive media applications”, Samuylov says.
Public defence on Tuesday 22 April
The doctoral dissertation of Licentiate Andrey Samuylov in the field of Computing and Electrical Engineering titled System-level models and methods for improving session service reliability in millimeter-wave cellular systems will be publicly examined at the Faculty of Information Technology and Communication Sciences at Tampere University at 12 o’clock on Tuesday 22.4.2025 in the auditorium TB109 of the Tietotalo building (Korkeakoulunkatu 1, Tampere). The Opponent will be Prof. Edmundo Monteiro from University of Coimbra, Portugal. The Custos will be Dr. Dmitri Moltchanov from Tampere University.