面向多业务的内容中心网络拥塞控制策略  

Content Centric Network Congestion Control Strategy for Multi-service

作　　者：张成晨 王雷[1] 吕威[1] 夏磊[1] 

机构地区：[1]中国科学技术大学自动化系,合肥230027

出　　处：《计算机工程》2016年第4期79-82,87,共5页Computer Engineering

基　　金：中国科学院战略性先导科技专项基金资助项目(XDA06011202);中央高校基本科研业务费专项基金资助项目(WK2100100022)

摘　　要：现有内容中心网络中的拥塞控制策略在解决网络拥塞时,难以直接获得网络中的拥塞状态信息反馈,在多业务的情况下无法保证各业务的服务质量。为此,提出一种能够在多业务情景下提高服务质量的拥塞控制策略。利用中间路由节点实时监控到达的兴趣包,根据兴趣包队列中的业务情况判定拥塞程度,将链路状态信息反馈给发送端,据此调节发送速率。实验结果表明,相比现有基于发送端的拥塞控制策略,该策略能在不增加业务完成时间的前提下有效解决网络拥塞问题,并保障不同业务的服务质量。It is difficult for the existing congestion control strategies in Content Centric Network（CCN） to obtain the feedback of the network congestion status directly. Besides, it can not guarantee the Quality of Services （ QoS ） for multi- service of each business. To solve this problem, a congestion control strategy that can improve the QoS in multi-service situations is proposed. This strategy monitors the arrived interest packets by the intermediate routing nodes, judges the congesting degree according to the business conditions of the interest packet queue, and feeds back the link state information to receivers, so as to adjust the sending rate. Experimental results show that this strategy can effectively control congestion in the network without increasing the completion time of services,and ensure QoS of different busiress.

关 键 词：内容中心网络 拥塞控制 服务质量 标签 未来网络 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]