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Sensors 2017, 17(3), 445; doi:10.3390/s17030445

A Topology Control Strategy with Reliability Assurance for Satellite Cluster Networks in Earth Observation

1
Research Center on Satellite Technology, Harbin Institute of Technology, Harbin 15001, China
2
School of Computer Science and Technology, Harbin Institute of Technology, Harbin 150001, China
*
Author to whom correspondence should be addressed.
Academic Editors: Muhammad Imran, Athanasios V. Vasilakos, Thaier Hayajneh and Neal N. Xiong
Received: 15 December 2016 / Revised: 15 February 2017 / Accepted: 20 February 2017 / Published: 23 February 2017
(This article belongs to the Special Issue Topology Control in Emerging Sensor Networks)
View Full-Text   |   Download PDF [1021 KB, uploaded 24 February 2017]   |  

Abstract

This article investigates the dynamic topology control problemof satellite cluster networks (SCNs) in Earth observation (EO) missions by applying a novel metric of stability for inter-satellite links (ISLs). The properties of the periodicity and predictability of satellites’ relative position are involved in the link cost metric which is to give a selection criterion for choosing the most reliable data routing paths. Also, a cooperative work model with reliability is proposed for the situation of emergency EO missions. Based on the link cost metric and the proposed reliability model, a reliability assurance topology control algorithm and its corresponding dynamic topology control (RAT) strategy are established to maximize the stability of data transmission in the SCNs. The SCNs scenario is tested through some numeric simulations of the topology stability of average topology lifetime and average packet loss rate. Simulation results show that the proposed reliable strategy applied in SCNs significantly improves the data transmission performance and prolongs the average topology lifetime. View Full-Text
Keywords: topology control strategy; reliability assurance; satellite mobility; satellite cluster networks; earth observation topology control strategy; reliability assurance; satellite mobility; satellite cluster networks; earth observation
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Chen, Q.; Zhang, J.; Hu, Z. A Topology Control Strategy with Reliability Assurance for Satellite Cluster Networks in Earth Observation. Sensors 2017, 17, 445.

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