Computing over Space-Air-Ground Integrated Networks: Challenges and Opportunities

Space-air-ground integrated networks (SAGINs) have gained significant attention and become a promising architecture for ubiquitous connectivity for SG-Advanced and 6G, enabling the integration of satellite networks, aerial networks, and terrestrial networks. This integration brings tremendous commun...

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Veröffentlicht in:IEEE network Jg. 35; H. 4; S. 302 - 309
Hauptverfasser: Shang, Bodong, Yi, Yang, Liu, Lingjia
Format: Journal Article
Sprache:Englisch
Veröffentlicht: New York IEEE 01.07.2021
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Schlagworte:
6G mobile communication
Computation
Computer architecture
Ecosystems
Performance evaluation
Quality of service
Quality of service architectures
Satellite networks
Satellites
Segments
Space communications
Systems architecture
Traffic delay
ISSN:0890-8044, 1558-156X
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Zusammenfassung:Space-air-ground integrated networks (SAGINs) have gained significant attention and become a promising architecture for ubiquitous connectivity for SG-Advanced and 6G, enabling the integration of satellite networks, aerial networks, and terrestrial networks. This integration brings tremendous communication benefits, such as non-terrestrial networks, seamless global coverage, high flexibility, and augmented system capacity. Meanwhile, computing capability becomes an indispensable part of the SAGIN ecosystem. In SAGINs, limited and unbalanced computation and communication resources of different network segments make it challenging to provide strict quality-of-service (QoS) guarantees for specific traffic (e.g., delay-sensitive traffic and outage-sensitive traffic). To fully utilize available system resources in SAGINs, cooperative computing among different network segments is a promising technology. This article presents the fundamentals and applications of computing over SAGINs by introducing the system architecture and explaining the potential technical issues related to cooperative computing. Furthermore, the potential for cooperative computing over SAGINs is showcased with a preliminary performance evaluation. Finally, future research opportunities are discussed.
Bibliographie:ObjectType-Article-1
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ISSN:0890-8044
1558-156X
DOI:10.1109/MNET.011.2000567