Satellite-Terrestrial Integrated Edge Computing Networks: Architecture, Challenges, and Open Issues

STN has been considered a novel network architecture to accommodate a variety of services and applications in future networks. Being a promising paradigm, MEC has been regarded as a key technology-enabler to offer further service innovation and business agility in STN. However, most of the existing...

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Bibliographic Details
Published in:IEEE network Vol. 34; no. 3; pp. 224 - 231
Main Authors: Xie, Renchao, Tang, Qinqin, Wang, Qiuning, Liu, Xu, Yu, F. Richard, Huang, Tao
Format: Journal Article
Language:English
Published: New York IEEE 01.05.2020
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:
Computation offloading
Computer architecture
Data centers
Edge computing
Mobility management
Multilayers
Quality of experience
Resource scheduling
Satellite broadcasting
Satellite networks
Satellites
Task analysis
Task scheduling
ISSN:0890-8044, 1558-156X
Online Access:Get full text
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Summary:STN has been considered a novel network architecture to accommodate a variety of services and applications in future networks. Being a promising paradigm, MEC has been regarded as a key technology-enabler to offer further service innovation and business agility in STN. However, most of the existing research in MEC enabled STN regards a satellite network as a relay network, and the feasibility of tasks processing directly on the satellites is largely ignored. Moreover, the problem of multi-layer edge computing architecture design and heterogeneous edge computing resource co-scheduling, have not been fully considered. Therefore, different from previous works, in this article, we propose a novel architecture named STECN, in which computing resources exist in multi-layer heterogeneous edge computing clusters. The detailed functional components of the proposed STECN are discussed, and we present the promising technical challenges, including meeting QoE requirements, cooperative computation offloading, multi-node task scheduling, mobility management and fault/failure recovery. Finally, some potential research issues for future research are highlighted.
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ISSN:0890-8044
1558-156X
DOI:10.1109/MNET.011.1900369