Near-space communications: The last piece of 6G space–air–ground–sea integrated network puzzle

H Liu, T Qin, Z Gao, T Mao, K Ying, Z Wan… - Space: Science & …, 2024 - spj.science.org
This article presents a comprehensive study on the emerging near-space communications
(NS-COM) within the context of space–air–ground–sea integrated network (SAGSIN) …

Energy Efficiency Optimization for Subterranean LoRaWAN Using A Reinforcement Learning Approach: A Direct-to-Satellite Scenario

K Lin, MA Ullah, H Alves, K Mikhaylov… - IEEE Wireless …, 2023 - ieeexplore.ieee.org
The integration of subterranean LoRaWAN and non-terrestrial networks (NTN) delivers
substantial economic and societal benefits in remote agriculture and disaster rescue …