BBR拥塞控制算法在高通量卫星通信系统加速网关中的应用研究

Application Research of BBR Congestion Control Algorithm in Acceleration Gateway of High-throughput Satellite Communication System

目前,我国高通量卫星系统进入快速发展期,TCP业务作为主要承载业务,在高延迟/高丢包率传输环境下的传输性能成为瓶颈,而新型拥塞控制算法能够有效解决该问题。本文在加速网关中引入BBR拥塞控制算法,做相应改进,并与传统CUBIC拥塞控制算法进行测试对比,验证BBR拥塞控制算法在高通量卫星通信系统中的适用性。

At present,China’s high-throughput satellite system has entered a period of rapid development.TCP service is the main service of the system.The transmission performance becomes the bottleneck in the transmission environment of high delay/high packet loss rate,and the new congestion control algorithm can effectively solve this problem.In this paper,the modified BBR congestion control algorithm is introduced in the acceleration gateway.And BBR is compared with the traditional CUBIC congestion control algorithm to verify the applicability of BBR congestion control algorithm in high-throughput satellite communication system.