Research on ABR congestion control algorithm in satellite ATM network based on onboard processing

Satellite ATM is a hot research area of satellite communication in recent years and congestion control is one of the key issues. This paper focuses on the ABR congestion control algorithm in a satellite ATM network based on onboard processing, which is implemented by using traffic prediction. Owing to the long propagation delay of the satellite channel, the accuracy of prediction decreases and it degrades the performance of the ABR congestion control algorithm. In order to overcome the impact of inaccuracy, a new method 'long-time prediction combined with dynamic bandwidth utilization factor' is suggested. Simulation results show that this method has advantages in the cell loss probability, link efficiency, and adaptation to different numbers of sources.