Optimization of Dynamic Beam Placement for LEO Satellite Multicast Communications
- Resource Type
- Periodical
- Authors
- Choi, H.; Lee, J.
- Source
- IEEE Wireless Communications Letters IEEE Wireless Commun. Lett. Wireless Communications Letters, IEEE. 13(4):1029-1033 Apr, 2024
- Subject
- Communication, Networking and Broadcast Technologies
Computing and Processing
Signal Processing and Analysis
Satellites
Low earth orbit satellites
Satellite broadcasting
Complexity theory
Optimization
Signal to noise ratio
Heuristic algorithms
Satellite communication
beam placement
beam center position
multicast
- Language
- ISSN
- 2162-2337
2162-2345
In this letter, we investigate a beam placement problem for multicast services in low-earth-orbit satellite environments to determine the optimal beam center position that maximizes the minimum transmission rate of users within a spot beam. We solve this problem using two approaches: an iteration-based gradient ascent algorithm and a geometry-based heuristic algorithm. The simulation results show that the proposed schemes optimally determine the position of the beam center and maximize the minimum transmission rate of users while balancing complexity and performance.