Challenges for Efficient and Seamless Space-Terrestrial Heterogeneous Networks

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By interconnecting satellites in the sky with ground stations on earth, space-terrestrial networks can extend the coverage area and increase the throughput for both commercial and non-profit applications. To realize the seamless and economic sky-to-earth networks, we still have to advance the technologies that bridge different types of channels, and find killer-applications that are essential for our life. In this article we review the current state-of-the-art technologies of multibeam satellites and relaying as fundamental cornerstones, and then address the issues of low-latency random access, mobility support, and multipath protocols for realizing a seamless heterogeneous network. We then illustrate two impactful applications: for emergency communication as a near-future and non-profit application, and for simultaneous transmission of information and power as a long-term application.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2015-05
Language
English
Article Type
Article
Citation

IEEE COMMUNICATIONS MAGAZINE, v.53, no.5, pp.156 - 162

ISSN
0163-6804
DOI
10.1109/MCOM.2015.7105655
URI
http://hdl.handle.net/10203/280864
Appears in Collection
AE-Journal Papers(저널논문)
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