Communications in Space–Air–Ground Integrated Networks: An Overview
As an emerging vertical heterogeneous network architecture that integrates the satellite-based space networks, air networks, and traditional ground networks, space–air–ground integrated network (SAGIN) is developed to realize the Internet of everything, global coverage, and ubiquitous intelligent co...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Association for the Advancement of Science (AAAS)
2025-01-01
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| Series: | Space: Science & Technology |
| Online Access: | https://spj.science.org/doi/10.34133/space.0199 |
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| _version_ | 1850141323458248704 |
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| author | Kai Yang Yichen Wang Xiaozheng Gao Chenrui Shi Yuting Huang Hang Yuan Minwei Shi |
| author_facet | Kai Yang Yichen Wang Xiaozheng Gao Chenrui Shi Yuting Huang Hang Yuan Minwei Shi |
| author_sort | Kai Yang |
| collection | DOAJ |
| description | As an emerging vertical heterogeneous network architecture that integrates the satellite-based space networks, air networks, and traditional ground networks, space–air–ground integrated network (SAGIN) is developed to realize the Internet of everything, global coverage, and ubiquitous intelligent communications. However, SAGIN also faces quite a few challenges due to its unique characteristics, such as highly complex network architecture, highly dynamic node topology, time-varying communication channels, and restricted resources. In this paper, we first introduce the architecture and benefits of SAGIN, and then present the faced challenges. Next, we discuss some key technologies in SAGIN. In particular, we discuss the flexible access in the realization of a dynamic communication architecture, explore some efficient resource scheduling methods to avoid wastage of resources, and investigate the secure communications, such as covert communications, physical layer security, and anti-jamming communications, in SAGIN. Finally, the potential future directions are discussed. |
| format | Article |
| id | doaj-art-0d08bca5aa92474d8e20d62dfe8d9575 |
| institution | OA Journals |
| issn | 2692-7659 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | American Association for the Advancement of Science (AAAS) |
| record_format | Article |
| series | Space: Science & Technology |
| spelling | doaj-art-0d08bca5aa92474d8e20d62dfe8d95752025-08-20T02:29:29ZengAmerican Association for the Advancement of Science (AAAS)Space: Science & Technology2692-76592025-01-01510.34133/space.0199Communications in Space–Air–Ground Integrated Networks: An OverviewKai Yang0Yichen Wang1Xiaozheng Gao2Chenrui Shi3Yuting Huang4Hang Yuan5Minwei Shi6School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China.School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China.School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China.Scool of Information and Communication Engineering, Communication University of China, Beijing 100024, China.School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China.School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China.Scool of Cyberspace Science and Technology, Beijing Institute of Technology, Beijing 100081, China.As an emerging vertical heterogeneous network architecture that integrates the satellite-based space networks, air networks, and traditional ground networks, space–air–ground integrated network (SAGIN) is developed to realize the Internet of everything, global coverage, and ubiquitous intelligent communications. However, SAGIN also faces quite a few challenges due to its unique characteristics, such as highly complex network architecture, highly dynamic node topology, time-varying communication channels, and restricted resources. In this paper, we first introduce the architecture and benefits of SAGIN, and then present the faced challenges. Next, we discuss some key technologies in SAGIN. In particular, we discuss the flexible access in the realization of a dynamic communication architecture, explore some efficient resource scheduling methods to avoid wastage of resources, and investigate the secure communications, such as covert communications, physical layer security, and anti-jamming communications, in SAGIN. Finally, the potential future directions are discussed.https://spj.science.org/doi/10.34133/space.0199 |
| spellingShingle | Kai Yang Yichen Wang Xiaozheng Gao Chenrui Shi Yuting Huang Hang Yuan Minwei Shi Communications in Space–Air–Ground Integrated Networks: An Overview Space: Science & Technology |
| title | Communications in Space–Air–Ground Integrated Networks: An Overview |
| title_full | Communications in Space–Air–Ground Integrated Networks: An Overview |
| title_fullStr | Communications in Space–Air–Ground Integrated Networks: An Overview |
| title_full_unstemmed | Communications in Space–Air–Ground Integrated Networks: An Overview |
| title_short | Communications in Space–Air–Ground Integrated Networks: An Overview |
| title_sort | communications in space air ground integrated networks an overview |
| url | https://spj.science.org/doi/10.34133/space.0199 |
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