1.
Trinh, Phuc V.; Sugiura, Shinya; Xu, Chao; Hanzo, Lajos
Toward Quantum SAGINs Harnessing Optical RISs: Applications, Advances, and the Road Ahead Journal Article
In: IEEE Network, vol. 39, no. 3, pp. 215–222, 2025, ISSN: 1558-156X.
Abstract | Links | BibTeX | Tags: Airplanes, Buildings, Drones, free-space optics, Low earth orbit satellites, next-generation network, Optical beams, Optical fiber networks, Optical fibers, optical reconfigurable intelligent surface, Quantum entanglement, quantum Internet, Relays, Satellites, Space-air-ground integrated network, Space-air-ground integrated networks
@article{trinh_toward_2025,
title = {Toward Quantum SAGINs Harnessing Optical RISs: Applications, Advances, and the Road Ahead},
author = {Phuc V. Trinh and Shinya Sugiura and Chao Xu and Lajos Hanzo},
url = {https://ieeexplore.ieee.org/document/10858146},
doi = {10.1109/MNET.2025.3536848},
issn = {1558-156X},
year = {2025},
date = {2025-05-01},
urldate = {2025-10-08},
journal = {IEEE Network},
volume = {39},
number = {3},
pages = {215–222},
abstract = {The space-air-ground integrated network (SAGIN) concept is vital for the development of seamless next-generation (NG) wireless coverage, integrating satellites, unmanned aerial vehicles, and manned aircraft along with the terrestrial infrastructure to provide resilient ubiquitous communications. By incorporating quantum communications using optical wireless signals, SAGIN is expected to support a synergistic global quantum Internet alongside classical networks. However, long-distance optical beam propagation requires line-of-sight (LOS) connections in the face of beam broadening and LoS blockages. To overcome blockages among SAGIN nodes, we propose deploying optical reconfigurable intelligent surfaces (ORISs) on building rooftops. They can also adaptively control optical beam diameters for reducing losses. This article first introduces the applications of ORISs in SAGINs, then examines their advances in quantum communications for typical SAGIN scenarios. Finally, the road ahead towards the practical realization of ORIS-aided NG quantum SAGINs is outlined.},
keywords = {Airplanes, Buildings, Drones, free-space optics, Low earth orbit satellites, next-generation network, Optical beams, Optical fiber networks, Optical fibers, optical reconfigurable intelligent surface, Quantum entanglement, quantum Internet, Relays, Satellites, Space-air-ground integrated network, Space-air-ground integrated networks},
pubstate = {published},
tppubtype = {article}
}
The space-air-ground integrated network (SAGIN) concept is vital for the development of seamless next-generation (NG) wireless coverage, integrating satellites, unmanned aerial vehicles, and manned aircraft along with the terrestrial infrastructure to provide resilient ubiquitous communications. By incorporating quantum communications using optical wireless signals, SAGIN is expected to support a synergistic global quantum Internet alongside classical networks. However, long-distance optical beam propagation requires line-of-sight (LOS) connections in the face of beam broadening and LoS blockages. To overcome blockages among SAGIN nodes, we propose deploying optical reconfigurable intelligent surfaces (ORISs) on building rooftops. They can also adaptively control optical beam diameters for reducing losses. This article first introduces the applications of ORISs in SAGINs, then examines their advances in quantum communications for typical SAGIN scenarios. Finally, the road ahead towards the practical realization of ORIS-aided NG quantum SAGINs is outlined.