Towards quantum SAGINs harnessing optical RISs: applications, advances, and the road ahead
Towards quantum SAGINs harnessing optical RISs: applications, advances, and the road ahead
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.
Space-air-ground integrated network, free-space optics, next-generation network, optical reconfigurable intelligent surface, quantum Internet
Trinh, Phuc V.
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Sugiura, Shinya
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Xu, Chao
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Hanzo, Lajos
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Trinh, Phuc V.
7bdb484e-77e0-42ca-965f-ca60c4aa0d6f
Sugiura, Shinya
4c8665dd-1ad8-4dc0-9298-bf04eded3579
Xu, Chao
5710a067-6320-4f5a-8689-7881f6c46252
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Trinh, Phuc V., Sugiura, Shinya, Xu, Chao and Hanzo, Lajos
(2025)
Towards quantum SAGINs harnessing optical RISs: applications, advances, and the road ahead.
IEEE Network.
(doi:10.1109/MNET.2025.3536848).
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.
Text
2025.01.28.IEEE Network_Manuscript_Phuc (FINAL FILES)
- Accepted Manuscript
More information
Accepted/In Press date: 27 January 2025
e-pub ahead of print date: 29 January 2025
Keywords:
Space-air-ground integrated network, free-space optics, next-generation network, optical reconfigurable intelligent surface, quantum Internet
Identifiers
Local EPrints ID: 498902
URI: http://eprints.soton.ac.uk/id/eprint/498902
ISSN: 0890-8044
PURE UUID: e0a9a80f-2269-4f55-bfae-357af2ba5803
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Date deposited: 04 Mar 2025 17:53
Last modified: 05 Mar 2025 02:45
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Contributors
Author:
Phuc V. Trinh
Author:
Shinya Sugiura
Author:
Chao Xu
Author:
Lajos Hanzo
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