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- Title
低轨卫星星座快速响应链路损毁路由算法.
- Authors
崔荣芳; 徐 湛; 职如昕
- Abstract
Designing efficient and flexible satellite routing algorithms is a major trend of low earth (LEO) orbit satellite communication technology. In order to solve the issues of transmission interruption and data security after inter-satellite link failure in LEO satellite constellation network,a quick-response link destruction routing algorithm for LEO satellite constellation(QRLDRA) is proposed. QRLDRA takes the predictable topology of constellation as the basis of inter-satellite routing calculation. And then,the ground satellite- return routing design is added to this algorithm to quickly send inter-satellite abnormality back to the ground computing center for processing after the link change is found. Meanwhile,in response to complete timely response of topology changes, after adopting the functions of route calculation, route annotation and link detection,a multi-priority dynamic queue is introduced to optimize the algorithm. It is flexible for queue to adjust the priority of different data transmission of inter-satellite link according to the node link state. Through simulation tests with traditional algorithm and QRLDRA,QRLDRA significantly improves the success rate of data end-to-end transmission and provides a reliable guarantee for the quality of service(QoS) of users.
- Subjects
ROUTING algorithms; TELECOMMUNICATION satellites; DATA transmission systems; TELECOMMUNICATION; MULTICASTING (Computer networks); DATA security; ORBITS of artificial satellites
- Publication
Telecommunication Engineering, 2023, Vol 63, Issue 8, p1165
- ISSN
1001-893X
- Publication type
Article
- DOI
10.20079/j.issn.1001-893x.220228001