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 |
| DOI: | 10.57237/j.cst.2024.04.003 |
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Received: 23 October 2024
Accepted: 28 November 2024
Published Online: 9 January 2025
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