摘要： Internet网络拥塞控制算法决定着网络的服务质量。把Internet通信系统看作具有通信时延的闭环反馈系统，建立了一个PID调解器控制Internet连接节点的拥塞率。采用特定相位裕量方法动态调整PID控制器的参数，使控制器能在线自适应网络系统中的变化。最后仿真验证了新的主动队列管理策略的有效性和鲁棒性。
关键词:
Internet拥塞控制,
主动队列管理策略,
PID调解器
Abstract: Internet congestion control algorithms decide the quality of service (QoS). By considering Internet system as a closed-loop feedback system with time-delay, a PID controller is established as active queue management (AQM) scheme to adjust the congestion marked possibility. The controller parameters are dynamically tuned by applying especial reference phase method for adapting the change of the Internet system. Finally, computer simulations show the validity and robustness of the new AQM scheme.
Key words:
Internet congestion control,
Active queue management (AQM) scheme,
PID controller
中图分类号:
杨洪勇;王福生;段惠东. 动态自适应的Internet拥塞控制系统的PID调解器[J]. 计算机工程, 2007, 33(06): 141-143.
YANG Hongyong; WANG Fusheng; DUAN Huidong. Dynamical Adaptive PID Controller of Internet Congestion Control System[J]. Computer Engineering, 2007, 33(06): 141-143.