无线传感器网络中基于领导者的拥塞控制算法  

Congestion control algorithm based on leader for wireless sensor network

作　　者：杨歆豪[1] 李泽[2] 

机构地区：[1]苏州大学 机电工程学院,江苏苏州215006 [2]苏州科技学院 机电工程系,江苏苏州215009

出　　处：《控制与决策》2012年第9期1348-1352,1358,共6页Control and Decision

基　　金：国家自然科学基金项(60974016,60974129,70931002);江苏省自然科学基金项目(BK2008188,BK2009388)

摘　　要：针对无线传感器网络存在的拥塞问题,设计一种基于领导者的拥塞控制算法,利用分布式动态系统的理论对拥塞问题进行建模,并证明了所提出的算法能够保证所有节点的发送速率收敛到可用的最小带宽,同时利用Lyapunov函数证明了所提出的算法在变拓扑网络结构下的有效性,仿真实验表明,基于领导者的拥塞控制算法能够很好地抑制无线传感器网络中的拥塞现象,保证较高的吞吐量和较低的网络延时,提高整个网络的服务质量。The congestion control algorithm based on Ieader is designed for network congestion of wireless sensor network. The congestion problem is modeled by using the theory of distributed dynamic system, which can prove that the send rate for all nodes converges to the minimal available bandwidth by using the proposed congestion control algorithm. By using Lyapunov function, the effectiveness of the proposed algorithm is proved under the varying network topology. Simulation results show that the proposed algorithm restrains the congestion in wireless sensor network, maintains high throughput and low delay time, and improves the quality of serve for the whole network.

关 键 词：无线传感器网络 网络拥塞控制 分布式动态系统 可用带宽 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]