Performance Evaluation for the Impact of TCP Congestion Control Algorithms in Low Earth Orbit Satellite Communication

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  • 低軌道衛星通信におけるTCP輻輳制御アルゴリズムの性能評価

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Abstract

Starlink, which is provided by the American company SpaceX provides a satellite internet constellation using Low-Earth orbit (LEO) satellite. The Starlink can achieve high-speed and stable internet access over the world. However, such a LEO satellite communication system have various challenges due to large delay variation compared to traditional ground-based internet. In conventional end-to-end communication over the Internet, TCP adjusts the data transmission rate appropriately based on congestion states in the network. However, since LEO satellite communication systems require communication between the satellites and base stations, some congestion control algorithms may affect communication performance. Therefore, this study aims to evaluate the communication performance with different congestion control algorithms using the Starlink.

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