摘要
针对ATM单瓶颈节点网络模型,提出ABR业务拥塞控制方案,给出使系统闭环稳定PID参数应满足的约束条件。设置前馈环节以抑制带宽波动对缓冲区队列长度的影响。仿真结果表明,业务服务质量得到了保证,系统具有较好的动态性能。
In this paper, the scheme of congestion control for ABR services is presented based on the single bottleneck node of ATM networks. The constraint condition of PID parameters is given which can guarantee the stability of closed system. In order to restrain the effect which the wave of available bandwidth brings to the queue length, the device of feed-forward is adopted. The simulation shows that the system has better dynamic performance and guarantees the quality of service.
出处
《计算机科学》
CSCD
北大核心
2004年第1期53-55,65,共4页
Computer Science
基金
国家自然科学基金(No.60174010)
燕山大学科技发展基金(YDJJ0123)
