一种基于带宽估计的MANET网络拥塞避免机制  

Congestion Avoidance Mechanism Based on Bandwidth Estimation in MANET Networks

作　　者：王庆辉[1] 魏立峰[1] 王光兴[2] 

机构地区：[1]沈阳化工学院信息工程学院,沈阳110041 [2]东北大学信息科学与技术学院,沈阳110004

出　　处：《计算机工程》2007年第3期24-26,84,共4页Computer Engineering

基　　金：国家"863"计划基金资助项目(863-701-2-4);辽宁省教育厅高等学校科技攻关计划基金资助项目(20040291)

摘　　要：针对MANET网络提出了一种基于带宽估计的拥塞避免机制。该机制通过实时地监测无线节点链路的工作状态,来估计节点的可用带宽,从而获得节点的拥塞程度指标,根据包的类型进行拥塞控制。带宽估计不需要与其他节点进行状态信息交换,降低了系统开销。拥塞避免机制缓解了无线网络的拥塞状态,提高了网络性能。A congestion avoidance mechanism based on bandwidth estimation in MANET networks is proposed. In order to get the metric of congestion degree, the available bandwidth is estimated through the work status of wireless link that is monitored by the node continuously. The congestion control mechanism is implemented according to packet type. The bandwidth estimation needn＇t exchange information with other nodes, so the overload of system is low. The results of simulation show that the mechanism has better performance.

关 键 词：MANET网络 拥塞避免 带宽估计 包类型 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]