Performance Enhancement for Congestion Control in GEO Satellite Networks.

The high-speed broadband access technology of satellite networks is becoming increasingly mature, but high-capacity data transmission is prone to congestion, which greatly affects the transmission impact of geostationary orbit (GEO) satellite networks. To alleviate the congestion in satellite networks and improve the transmission rate of links, this study proposed a scheme to increase the data transmission volume. The impact of long delay and high bandwidth in satellite networks was mitigated by increasing the congestion window on the sender side, and increasing the number of data transmissions ensured that the proposed scheme fully utilized the high bandwidth delay product of satellite networks. Different types of data loss were used to improve the stability of network transmission. Results show that the proposed scheme can significantly improve the throughput and reduce the response time of a satellite link when a satellite network is congested. The scheme also significantly improves the network performance when the satellite network is not congested. When the network is not congested, the proposed scheme improves the throughput by a factor of 6 over the standard protocol. Even in the case of congestion, the former also improves the throughput by a factor of 2 over the latter. The proposed method provides a useful reference for improving the transmission performance of satellite networks. [ABSTRACT FROM AUTHOR]