一种适用于双边推流的负反馈拥塞控制算法

A Negative Feedback Congestion Control Algorithm Applicable for Bilateral Flow Push

针对高速长延时网络中双边推流速率低下的情况,我们提出了一种适用于双边推流的的负反馈拥塞控制算法,通过采集链路的往返延时以及丢包信息,并对系统进行负反馈设计,计算得出合理的收敛因子,精确地评估了链路的拥塞状况,有效地提升了双边推流的速率,实验结果表明,ustcp算法不仅能够主动避免链路的拥塞,而且使得双边推流的速率比传统的拥塞控制算法提高了251%,并且在丢包率升高的情况下,效果更加明显。

In view of the slow rate of bilateral flow push in high speed long latency network, we propose a negative feedback congestion control algorithm applicable for bilateral flow push,through the acquisition of round-trip time and packet loss information of the link, and the negative feedback design of the system, a reasonable convergence factor is calculated, the link congestion situation is accurately evaluated, effectively improve the rate of bilateral flow push.The experimental results show that, algorithm ustcp can not only proactively avoid link congestion, but also improve the rate of bilateral flow push by 251% than traditional congestion control algorithm, if packet loss rate increases, the effect is more obvious.