一种精确度加强的主动队列管理算法BLUE^+

Precision Enhanced Active Queue Management Algorithm BLUE^+

主动队列管理是IP拥塞控制的一种重要机制,BLUE算法作为一种典型的主动队列管理算法,使用丢包和连接空闲事件来控制拥塞,但是其性能还不稳定。对BLUE算法进行了改进,提出了一种精确度加强的主动队列管理算法BLUE+,并将其应用于区分服务(D iffServ)模型。仿真表明BLUE+能够进一步提高对队列的控制精确度,改善BLUE算法的性能,并且能有效地支持区分服务。

Active queue management algorithm is an important mechanism of IP congestion control. As a kind of typical active queue management algorithm, BLUE uses packet loss and link idle events to manage congestion, but its performance is still unstable. This paper improved BLUE algorithm, proposed a precision enhanced active queue management algorithm BLUE^＋ and applied BLUE^＋ to the model of DiffServ. Simulations experiments show that BLUE^＋ improves the precision of queue management and the performance of BLUE algorithm, supports the DiffServ effectively.