摘要： 为解决无线传感器网络逐跳节点拥塞控制问题,在节点网络层与链路层之间引入水槽流入与流出的数学 模型,提出一种针对逐跳节点级链路层帧缓冲区队列长度的拥塞控制模型,并采用基于趋近律的离散滑模控制结 构作为该模型的控制器,控制过程简便且易于实现。仿真结果表明,与常规的PID 控制、模糊PID 控制相比,该模 型在响应速度、延迟时间等方面性能较好。
关键词:
无线传感器网络,
拥塞控制,
离散滑模控制,
趋近律,
滑模变结构
Abstract: A new hop-to-hop congestion mathematical model between the network-layer and the link-layer is presented
based on the tank balance relationship of the inflows and outflows for the node-congestion control in Wireless Sensor Network(WSN). The congestion control model is simpler than ever before and is easy to implement and a discretesliding mode controller is designed based on the reaching-law. The simulation results show that the proposed model is better than the traditional PID and fuzzy control in terms of response and delay.
Key words:
Wireless Sensor Network(WSN),
congestion control,
discrete sliding-mode control,
reaching-law,
slidingmode
variable structure
中图分类号:
陈树,王夫栋. 基于滑模变结构的无线传感器网络拥塞控制[J]. 计算机工程.
CHEN Shu,WANG Fudong. Wireless Sensor Network Congestion Control Based on Sliding-mode Variable Structure[J]. Computer Engineering.