高轨卫星数据传输方案优化设计及验证
北京计算机技术及应用研究所, 北京 100854
| 摘 要： | 频带资源有限、传输延迟长是高轨卫星和地面之间端到端数据传输的难点。为了解决这些问题，需要对TCP实现进行针对性的优化。当前有五种主流的传输方案：双侧TCP参数轻度优化方案、双侧TCP内核重度优化方案、地端单侧TCP内核重度优化方案、重度隧道优化方案和轻量级TCP-QUIC代理优化方案。针对高轨卫星的应用场景，通过深入比较分析，最终只有轻量级TCP-QUIC代理优化方案能够满足。该方案在在减少连接建立的延迟、提高拥塞控制和流量控制的效率、支持多路复用和连接迁移等方面具有很好的优化效果。利用北京计算机技术及应用研究所建立的原型系统进行的半实物仿真试验对该优化方案进行了验证，经过优化之后，在150 Mbps的下行方向上，速率可提升100倍以上，10 Mbps的上行方向上，速率可提升7倍以上，完全满足使用需求。轻量级TCP-QUIC代理优化方案可作为中国今后的高轨卫星数据传输的很有竞争力的备选标准技术方案，发挥重要的应用价值。 |
| 关 键 词： | 高轨卫星; 数据传输; 端到端; 传输速率; TCP-QUIC; 半实物仿真 |
| DOI： | 10.57237/j.cst.2024.04.003 |
View:
Downloads:
收稿日期: 2024-10-23
接受日期: 2024-11-28
在线出版日期: 2025-01-09
Design and Validation of an Optimized Data Transmission Scheme for High Orbit Satellites
Beijing Institute of Computer Technology and Application, Beijing 100854, China
| Abstract: | The limited frequency resource and low transmission rate are bottleneck of the End-to-End data transmission between high orbit satellites and ground segments. The optimization of the TCP realization is necessary. There are five popular data transmission schemes: double-side TCP lightweight parameter optimization scheme, double-side TCP heavyweight core optimization scheme, heavyweight tunnel optimization scheme and lightweight TCP-QUIC proxy optimization scheme. After intensive analysis, only the lightweight TCP-QUIC proxy optimization scheme can fulfill the user specifications. This scheme has a good optimization effect in reducing the delay of connection establishment, improving the efficiency of congestion control and flow control, and supporting multi-channel multiplexing and connection migration. Based on the prototype system established by Beijing Institute of Computer Technology and Application, hardware-in-the-loop simulations show that, after optimization, the 150Mbps downlink transmission rate can improve by 100 times, while the 10Mbps uplink transmission rate can improve by 7 times. The transmission rates can fully satisfy the user requirements. The optimized scheme in this paper can be a competitive candidate for the scheme of the standard data transmission scheme for future orbit satellites in China. |
| Keywords: | High Orbit Satellites; Data Transmission; End-to-End; Transmission Rate; TCP-QUIC; Hardware-in-the-loop Simulation |
参考文献
| [1] | Carlo Caini, Rosario Firrincieli, Daniele Lacamera. PEPsal: a Performance Enhancing Proxy for TCP satellite connections [C], Proc. of IEEE VTC’06 spring, Melbourne, May 2006, 22(8): B9-B16. |
| [2] | 曾 斌, 李之棠, 徐帆江. 面向卫星网络的TCP代理 [J], 软件学报, 2007, 18(7): 1695-1704. |
| [3] | D. Velenis, D. Kalogeras, B. Maglaris. SaTPEP: A TCP Performance Enhancing Proxy for Satellite Links Published in NETWORKING 19 May 2002 Computer Science, Engineering: 1233-1238. |
| [4] | 王辉, 王凌云, 吴震. 面向卫星网络的TCP 传输性能的研究 [J], 通信技术, 2008, 41(9): 145-149. |
| [5] | 侯晓谦. 适用于卫星网路的T CP Vegas算法的改进研究 [J], 科技视界, 2015, 1(84): 119. |
| [6] | 林晓拔. 卫星互联网TC P 拥塞控制算法 [J], 计算机工程与设计, 2018, 4(39): 94. |
| [7] | X. Cao and X. Zhang. SaTCP: Link-layer informed TCP adaptation for highly dynamic LEO satellite networks [C], IEEE INFOCOM, Hoboken, New Jersey, USA, 2023. |
| [8] | W. Stevens, TCP/IP Illustrated, Volume I: The Protocols [M]. 北京: 清华大学出版社, 1994. |
| [9] | Sibo Pan, Ruifeng Gao, Yingdong Hu, Ye Li. TCP Performance in Satellite Backhauling for Maritime Communications: A ns-3 Study [C], 14th International Conference on Wireless Communications and Signal Processing (WCSP), Nanjing, November 2022: 877-882. |
| [10] | Red Hat Enterprise. Chapter 31. Tuning the network performance, in Monitoring and managing system status and performance: [M], 2024: 244-285. |
| [11] | Jerry Chu. Tuning TCP Parameters for the 21st Century [C], 75th Internet Engineering Task Force Confernce, Stockholm, July 2009. |
| [12] | Yuchung Cheng, Neal Cardwell, Making Linux TCP Fast [J], Netdev Conference, 2023. |
| [13] | ExtraHop Network Inc. Optimizing TCP: Nagle’s Algorithm and Beyond [R], 2016. https://assets.extrahop.com/whitepapers/TCP-Optimization-Guide-by-ExtraHop.pdf |
| [14] | 林利祥, 刘旭东, 刘少腾, 徐跃东. 前向纠错编码在网络传输协议中的应用综述 [J], 计算机科学, 2022, 49(2): 292-303. |
| [15] | Esma Yildirim, Dengpan Yin, Tevfik Kosar, Balancing TCP Buffer vs Parallel Streams in Application Level Throughput Optimization [C], DADC'09, Munich, Germany. June 2009: 21-30. |
| [16] | M. Y. Sanadidi, M. Gerla, J. Stepanek. On-board satellite ‘Split TCP’ Proxy. IEEE Journal on Selected Areas in Communications, 2004, 22(2): 362 – 370. |
