Uplink zone-based scheduling for LEO satellite based Non-Terrestrial Networks
- Resource Type
- Conference
- Authors
- Mandawaria, Vikalp; Sharma, Neha; Sharma, Diwakar; Majumdar, C.; Nigam, A.; Park, Seungil; Jung, Jungsoo
- Source
- 2022 IEEE Wireless Communications and Networking Conference (WCNC) Wireless Communications and Networking Conference (WCNC), 2022 IEEE. :1313-1318 Apr, 2022
- Subject
- Aerospace
Bioengineering
Communication, Networking and Broadcast Technologies
Computing and Processing
Engineering Profession
General Topics for Engineers
Signal Processing and Analysis
Doppler shift
Performance evaluation
Satellites
Protocols
Low earth orbit satellites
Media Access Protocol
Numerical simulation
- Language
- ISSN
- 1558-2612
To provide coverage to the network devices distributed all over the globe, non-terrestrial networks (NTNs) have been recognized to complement and extend the terrestrial network to remote areas. The Low Earth Orbit (LEO) NTNs face several unprecedented challenges over 5G-NR protocol due to high differential delay and Doppler shifts which drastically impacts the performance of NR-NTN users. In this work, we investigate the impact of large differential delay and Doppler shifts within a NTN cell on the 5G-NR resource allocation and medium access control (MAC) protocol. We then propose an uplink zone-based scheduling technique to address the high differential delay and Doppler shifts for LEO satellites for LEO satellite-based NTNs. Finally, we validate the performance of the proposed strategy by comparing it with the conventional 5G-NR protocol through numerical simulations over the recently developed Samsung’s NR-NTN System Level Simulator.