Projecte matriculat
Títol: Performance analysis of 3GPP mobility mechanisms in Non-Terrestrial Networks
Director/a: LÓPEZ AGUILERA, ELENA
Departament: ENTEL
Títol: Performance analysis of 3GPP mobility mechanisms in Non-Terrestrial Networks
Data inici oferta: 25-07-2024 Data finalització oferta: 25-03-2025
Estudis d'assignació del projecte:
DG ENG AERO/TELEMÀT
| Tipus: Individual | |
| Lloc de realització: Fora UPC | |
| Supervisor/a extern: Roger Pueyo Centelles | |
| Institució/Empresa: I2CAT Foundation | |
| Titulació del Director/a: PhD in Computer Architecture | |
| Paraules clau: | |
| Non-Terrestrial Networks, Handover, 5G, 3GPP, Mobility, LEO Satellites | |
| Descripció del contingut i pla d'activitats: | |
| The handover mechanisms in terrestrial networks, which are based on signal measurements carried out by the UE, have been carefully fine tuned throughout the various generations of cellular communications. These mechanisms, though, have been redesigned in the latest 3GPP releases to support the integration of NGSO constellations in 3GPP NTN systems. The inclusion of time-based or location-based criteria in the handover mechanism is one of the main novelties in this domain. Being this a very recent development, the impact of these new mechanisms in the performance of NGSO constellations at scale providing 3GPP NTN services is not yet fully understood. Hence, the main goal of this thesis will be the study of the trade-offs introduced by these new mechanisms by means of simulation, analyzing the performance in terms of robustness, reliability and other defined key parameter indicators (KPI) like Unnecessary Handovers, Handover Failure Rate, etc. With this, it is possible to study which of the proposed solutions has the best performance and which are the main problems that are yet to be solved, such as reducing signaling overhead, optimizing the use of resources, etc. Before all, a summary of the evolution of 5G related to NTN has to be presented, explaining the different releases and which have been the modifications introduced in each one to assess distinct problems, like LEO satellites mobility, which is one of the most challenging aspects to be dealt with. For that matter, it will be very important to exploit the known satellite's trajectory when programming different triggering events to achieve an efficient and optimal handover, providing 5G NR connectivity everywhere at any time and ensuring continuous and satisfactory service while users handover among cells. | |
| Orientació a l'estudiant: | |
| Communication networks
3GPP networks Programming languages: C++, Python and data analytics libraries (e.g., NumPy) Operating systems: GNU/Linux (e.g., Ubuntu) |
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| Requereix activitats software: Sí Sistema operatiu: Disc (Gb): | |
| Horari d'atenció a estudiants per a l'assignació de projecte: |
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