Open Access
ARTICLE
A Safe and Reliable Routing Mechanism of LEO Satellite Based on SDN
Chao Guo1, *, Juan Guo2, Chanjuan Yu1, Zhaobin Li1, Cheng Gong3, Abdul Waheed4
1 Department of Electronics and Communication Engineering, Beijing Electronic Science and Technology Institute, Beijing, 100070, China.
2 Vocational and Technical College, Guilin University of Electronic Technology, Beihai, 536000, China.
3 School of Computer and Communication Engineering, University of Science and Technology Beijing, Beijing, 100083, China.
4 University of Management Technology, Lahore, 55300, Pakistan.
* Corresponding Author: Chao Guo. Email: .
Computers, Materials & Continua 2020, 64(1), 439-454. https://doi.org/10.32604/cmc.2020.09792
Received 19 January 2020; Accepted 05 April 2020; Issue published 20 May 2020
Abstract
Satellite networks have high requirements for security and data processing
speed. In order to improve the reliability of the network, software-defined network (SDN)
technology is introduced and a central controller is set in the network. Due to the
characteristics of global perspective, control data separation, and centralized control of
SDN, the idea of SDN is introduced to the design of the satellite network model. As a
result, satellite nodes are only responsible for data transmission, while the maintenance of
the links and the calculation of routes are implemented by the controller. For the massive
LEO satellite network based on SDN, a state evaluation decision routing mechanism is
proposed. The designed mechanism monitors the status of the entire network effectively
and reduces the on-board load on the satellite network. The best routing decision is made
under the comprehensive consideration of the current and historical status of each intersatellite link between Low Earth Orbit (LEO) satellite network nodes. The calculation
and storage requirements are controlled within a reasonable range. Based on the curve
parameter transmission fuzzy encryption algorithm, a safe and reliable condition
assessment decision routing mechanism (CADRM) is designed. It ensures that the
personal information of the LEO satellite network can be transmitted safely and
effectively. The experimental simulation results show the improvement of network
throughput, the reduction of packet loss rate and the enhancing of network reliability.
Keywords
Cite This Article
C. Guo, J. Guo, C. Yu, Z. Li, C. Gong
et al., "A safe and reliable routing mechanism of leo satellite based on sdn,"
Computers, Materials & Continua, vol. 64, no.1, pp. 439–454, 2020. https://doi.org/10.32604/cmc.2020.09792
Citations