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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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WRAP-5G-embraces-satellites-6G-ubiquitous-IoT-basic-models-integrated-satellite-terrestrial-networks-Chen-2021.pdf - Accepted Version - Requires a PDF viewer. Download (22Mb) | Preview |
Official URL: http://dx.doi.org/10.1109/JIOT.2021.3068596
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 | |||||||||||||||||||||||||||||||||
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| 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: |
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| 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: |
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