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NTN Waveform Performance Analysis
Funded by: 6G-SANDBOX
Summary on 6G Sandbox webpage: https://6g-sandbox.eu/6g-sandbox-3rd-open-call-winners/
Project Objectives:
Evaluate DVB-RCS2 and 5G-NR performance for video streaming, file transfers, and interactive traffic types.
Identify optimal system configurations for each technology based on traffic profiles, covering MCS, bandwidth, latency, frame structure, MAC, RRM, and retransmissions.
Perform comparative experiments under varying channel conditions including GEO delay and SNR levels.
Log KPIs such as BER/BLER, throughput, latency, jitter, and protocol overheads during experiments.
Analyze and compare overall performance of DVB-RCS2 and 5G-NR across traffic types, configurations, and channel conditions.
My roles:
Implement 3GPP Rel-17 5G-NTN adaptations (RLC, PDCP, RRC - timers and buffers) in OpenAirInterface5G for GEO satellite-based 5G NTN links.
End-to-end testbed set-up at UniLu ( gNB, UE, satellite channel emulator, connecting SDR terminals to VSAT, etc).
Conduct live over-the-satellite tests to collect KPIs such as TCP/UDP bandwidth, latency etc, and analysis.
Dissemination: Published 4 conference papers, and 1 book chapter and led 5 demonstrations (Globecom’23, ICASSP’22, ICSSC’22/23, EuCNC’22, ASMS’22, Softcom’23, FNWF’22).
Demonstrator Set-up: gNB at Munich, One Nomadic UE at Munich, One Static UE at University of Luxembourg
A video showing over-the-satellite live testing where a remote gNB located at UniBW (Munich) was connected to two UEs. First UE was nomadic and located at Stresa (Italy) and the second UE which was static and located at UniLu (Luxembourg).
5G-GOA.mp4
Nomadic UE-1 at Stresa(Italy) gNB at UniBW(Munich) Static UE-2 at UniLu(Luxembourg)
Some pictures from the over-the-satellite live testing experiments
Related Publications: To be updated
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