| 内容中心网络状态感知路由设计 |
| |
| 引用本文： | 蔡岳平,刘 军.内容中心网络状态感知路由设计[J].通信学报,2016,37(6):38-48. |
| |
| 作者姓名： | 蔡岳平 刘 军 |
| |
| 作者单位： | 重庆大学通信工程学院，重庆 400030 |
| |
| 基金项目： | 国家自然科学基金资助项目（No.61301119）；教育部—中国移动科研基金资助项目（No.MCM20150102）；教育部高等学校博士学科点专项科研基金资助项目（No.20120191120025）；教育部留学归国人员启动基金资助项目（No.1020607820140002） |
| |
| 摘 要： | 为了提高内容中心网络的内容分发效率及降低网络开销，提出了网络状态感知的路由机制NSAR(network status aware routing)。NSAR利用从内容服务节点返回的数据分组收集当前网络状态信息，并在回传过程中对路径上各节点上匹配端口的转发概率进行更新，在对后续的兴趣分组进行转发决策时引入转发概率，从而提高内容分发效率。仿真实验表明，与传统内容中心网络路由算法相比，NSAR可以有效地降低内容请求平均时延，减少网络流通分组数以及降低网络带宽开销。
|
| 关 键 词： | 内容中心网络 路由机制 网络状态 状态感知 转发概率 |
Network status aware routing in content-centric network |
| |
| Yue-ping CAI,Jun LIU.Network status aware routing in content-centric network[J].Journal on Communications,2016,37(6):38-48. |
| |
| Authors: | Yue-ping CAI Jun LIU |
| |
| Affiliation: | College of Communication Engineering,Chongqing University,Chongqing 400030,China |
| |
| Abstract: | To improve the efficiency of content delivery and to reduce the network overhead of content centric network (CCN), a network status aware routing (NSAR) mechanism was proposed. NSAR utilized data packets from the content server nodes to collect network statuses. The forwarding probability of the matching ports of the nodes on the path would be updated according to the network statuses. The subsequent interest packet forwarding would be based on the updated forwarding probability. Therefore the content delivery efficiency would be improved. Simulation results show that NSAR can effectively reduce the average delay of content requests and the number of packets in network as well as the network band-width overhead compared with the traditional routing algorithm in CCN. |
| |
| Keywords: | content-centric network routing mechanism network status status aware forwarding probability |
|
| 点击此处可从《通信学报》浏览原始摘要信息 |
|
点击此处可从《通信学报》下载全文 |
