计算机工程与应用2018，Vol.54Issue(10)：115-120,6.DOI:10.3778/j.issn.1002-8331.1612-0302
命名数据网络中的一种主动拥塞控制策略
Active congestion control strategy in named data networking
摘要
Abstract
This paper proposes a Name Weighted Fair Queuing(NWFQ)algorithm on the basis of the Weighted Fair Queuing(WFQ)algorithm, NWFQ timely changing the sending rate of interest packets to solve the congestion control problem in Named Data Networking(NDN).Firstly,when congestion occurs,the speed limit mechanism based on token bucket algorithm is used to reduce the forwarding rate of the overspeed flow.At the same time,the congestion information field in the interest package is updated and then hop by hop sended to the downstream router;finally,data packets encap-sulate the congestion information and return to the consumer,by this way,consumer can adjust the interest sending rate and the data rate accordingly to mitigate network congestion.Simulation results based on ndnSIM show that:NWFQ can effectively improve the bottleneck link utilization and close to 95%,while maintaining a low packet loss rate and average flow completion time.关键词
命名数据网络/拥塞控制/名字加权公平排队算法/惩罚函数/显式反馈Key words
named data networking/congestion control/name weighted fair queuing algorithm/penalty function/explicit feedback分类
信息技术与安全科学引用本文复制引用
王文静,雒江涛..命名数据网络中的一种主动拥塞控制策略[J].计算机工程与应用,2018,54(10):115-120,6.基金项目
重庆市基础科学与前沿技术研究重点项目(No.cstc2015jcyjBX0009). （No.cstc2015jcyjBX0009）
