Energy-Allocation for Hybrid RF/FSO Satellite to Ground Station Down Links in Integrated Satellite-Terrestrial Networks

Hybrid RF/FSO technology addresses high-capacity transmission demands between satellites and ground stations. In this paper, we propose an energy-allocation scheme, which activates RF/FSO links concurrently. Results show the scheme enhances links capacity by 112.7% and 85% compared to RF or FSO-only settings, with minimal power increasing of 14.5%. This indicates that our energy-allocation scheme not only boosts transmission capacity but also maintains efficiency in power usage, making it a viable solution for modern satellite communication systems.