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5G embraces satellites for 6G ubiquitous IoT : basic models for integrated satellite terrestrial networks

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Fang, Xinran, Feng, Wei, Wei, Te, Chen, Yunfei, Ge, Ning and Wang, Cheng-Xiang (2021) 5G embraces satellites for 6G ubiquitous IoT : basic models for integrated satellite terrestrial networks. IEEE Internet of Things Journal, 8 (18). 14399 -14417. doi:10.1109/JIOT.2021.3068596 ISSN 2327-4662.

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Official URL: http://dx.doi.org/10.1109/JIOT.2021.3068596

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Abstract

Terrestrial communication networks mainly focus on users in urban areas but have poor coverage performance in harsh environments, such as mountains, deserts, and oceans. Satellites can be exploited to extend the coverage of terrestrial fifth-generation (5G) networks. However, satellites are restricted by their high latency and relatively low data rate. Consequently, the integration of terrestrial and satellite components has been widely studied, to take advantage of both sides and enable the seamless broadband coverage. Due to the significant differences between satellite communications (SatComs) and terrestrial communications (TerComs) in terms of channel fading, transmission delay, mobility, and coverage performance, the establishment of an efficient hybrid satellite-terrestrial network (HSTN) still faces many challenges. In general, it is difficult to decompose a HSTN into a sum of separate satellite and terrestrial links due to the complicated coupling relationships therein. To uncover the complete picture of HSTNs, we regard the HSTN as a combination of basic cooperative models that contain the main traits of satellite-terrestrial integration but are much simpler and thus more tractable than the large-scale heterogeneous HSTNs. In particular, we present three basic cooperative models, i.e., model X, model L, and model V, and provide a survey of the state-of-the-art technologies for each of them. We discuss future research directions towards establishing a cell-free, hierarchical, decoupled HSTN. We also outline open issues to envision an agile, smart, and secure HSTN for the sixth-generation (6G) ubiquitous Internet of Things (IoT).

Item Type: Journal Article
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Science, Engineering and Medicine > Engineering > Engineering
Library of Congress Subject Headings (LCSH): Artificial satellites in telecommunication, Internet of things, Wireless communication systems, Neural computers
Journal or Publication Title: IEEE Internet of Things Journal
Publisher: IEEE
ISSN: 2327-4662
Official Date: 15 September 2021
Dates:
DateEvent
15 September 2021Published
24 March 2021Available
21 March 2021Accepted
Volume: 8
Number: 18
Page Range: 14399 -14417
DOI: 10.1109/JIOT.2021.3068596
Status: Peer Reviewed
Publication Status: Published
Reuse Statement (publisher, data, author rights): © 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Access rights to Published version: Restricted or Subscription Access
Date of first compliant deposit: 21 April 2021
Date of first compliant Open Access: 21 April 2021
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
2020YFA0711301National Key Research and Development Program of ChinaUNSPECIFIED
61771286[NSFC] National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100001809
61922049[NSFC] National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100001809
61941104[NSFC] National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100001809
61960206006[NSFC] National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100001809
2242019R30001Fundamental Research Funds for the Central Universitieshttp://dx.doi.org/10.13039/501100012226
872172[ERC] Horizon 2020 Framework Programmehttp://dx.doi.org/10.13039/100010661
BNR2020RC01016Beijing National Research Center For Information Science And TechnologyUNSPECIFIED
JC2019115Nantong Science and Technology Bureauhttp://dx.doi.org/10.13039/501100009156
UNSPECIFIEDBeijing Innovation Center for Future Chiphttp://dx.doi.org/10.13039/501100012282

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