A Caching Based Robust Routing Algorithm Using DDR for LEO Constellation Networks
The Laser Inter-Satellite Link (LISL) has emerged as a promising method for achieving higher transmission rates, increasing bandwidth, and reducing power consumption in Low Earth Orbit (LEO) constellation networks. Currently, a variety of routing algorithms have been developed for LEO constellation...
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| Vydané v: | IEEE International Conference on Communications workshops s. 1747 - 1752 |
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| Hlavní autori: | , , , , , |
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| Jazyk: | English |
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08.06.2025
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| ISSN: | 2694-2941 |
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| Abstract | The Laser Inter-Satellite Link (LISL) has emerged as a promising method for achieving higher transmission rates, increasing bandwidth, and reducing power consumption in Low Earth Orbit (LEO) constellation networks. Currently, a variety of routing algorithms have been developed for LEO constellation network with LISL. However, most of them assumed that the LISLs are stable, and none of them considered the packet loss caused by the LISL jitters. When the LISL is jittering the packet loss ratio becomes higher, and the LISLs are not stable actually. This paper proposes a caching-based robust routing algorithm for LEO constellation with LISL by using the Double Data Rate SDRAM (DDR). Specifically, the packets transmitted in the most recent time period on each LISL are ring cached in DDR, and the cached packets are rerouted in the interruption event of LISL. We propose a detailed software and hardware caching based routing system design and show its advantages in LISL constellation networks. Various simulations are constructed, and our proposed algorithm outperforms the existing routing algorithm in terms of packet loss ratio. |
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| AbstractList | The Laser Inter-Satellite Link (LISL) has emerged as a promising method for achieving higher transmission rates, increasing bandwidth, and reducing power consumption in Low Earth Orbit (LEO) constellation networks. Currently, a variety of routing algorithms have been developed for LEO constellation network with LISL. However, most of them assumed that the LISLs are stable, and none of them considered the packet loss caused by the LISL jitters. When the LISL is jittering the packet loss ratio becomes higher, and the LISLs are not stable actually. This paper proposes a caching-based robust routing algorithm for LEO constellation with LISL by using the Double Data Rate SDRAM (DDR). Specifically, the packets transmitted in the most recent time period on each LISL are ring cached in DDR, and the cached packets are rerouted in the interruption event of LISL. We propose a detailed software and hardware caching based routing system design and show its advantages in LISL constellation networks. Various simulations are constructed, and our proposed algorithm outperforms the existing routing algorithm in terms of packet loss ratio. |
| Author | Hu, Haiying Wu, Youlong Zhao, Yanchun Wang, Wenqian Tian, Feng Chen, Zhihao |
| Author_xml | – sequence: 1 givenname: Zhihao surname: Chen fullname: Chen, Zhihao email: chenzhihao23@mails.ucas.ac.cn organization: Innovation Academy for Microsatellites of CAS,Key Laboratory for Satellite Digitalization Technology,Shanghai,China – sequence: 2 givenname: Feng surname: Tian fullname: Tian, Feng email: tianf@microsate.com organization: Innovation Academy for Microsatellites of CAS,Key Laboratory for Satellite Digitalization Technology,Shanghai,China – sequence: 3 givenname: Yanchun surname: Zhao fullname: Zhao, Yanchun email: zhaoyanchun@microsate.com organization: Innovation Academy for Microsatellites of CAS,Key Laboratory for Satellite Digitalization Technology,Shanghai,China – sequence: 4 givenname: Wenqian surname: Wang fullname: Wang, Wenqian email: wangwenqian1011@mail.ustc.edu.com organization: Innovation Academy for Microsatellites of CAS,Key Laboratory for Satellite Digitalization Technology,Shanghai,China – sequence: 5 givenname: Youlong surname: Wu fullname: Wu, Youlong email: wuyl1@shanghaitech.edu.cn organization: ShanghaiTech University,School of Information Science and Technology,Shanghai,China – sequence: 6 givenname: Haiying surname: Hu fullname: Hu, Haiying email: huhy@microsate.com organization: Innovation Academy for Microsatellites of CAS,Key Laboratory for Satellite Digitalization Technology,Shanghai,China |
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| Snippet | The Laser Inter-Satellite Link (LISL) has emerged as a promising method for achieving higher transmission rates, increasing bandwidth, and reducing power... |
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| SubjectTerms | Conferences DDR Hardware LEO constellation network LISL Low earth orbit satellites Packet loss packet loss ratio Routing SDRAM Software Software algorithms Software reliability System analysis and design |
| Title | A Caching Based Robust Routing Algorithm Using DDR for LEO Constellation Networks |
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