What to Cache：Differentiated Caching Resource Allocation and Management in Information-Centric Networking  

作　　者：Ru Huo Renchao Xie Hengyang Zhang Tao Huang Yunjie Liu 

机构地区：[1]State Key Laboratory of Networking and Switching, Beijing University of Posts and Telecommunications, Beijing 100876, China [2]Beijing Advanced Innovation Center for Future Internet Technology, Beijing 100124, China

出　　处：《China Communications》2016年第12期261-276,共16页中国通信（英文版）

基　　金：supported in part by The National High Technology Research and Development Program of China (863 Program) under Grant No. 2015AA016101;The National Natural Science Foundation of China under Grant No. 61501042;Beijing Nova Program under Grant No. Z151100000315078;BUPT Special Program for Youth Scientific Research Innovation under Grant No. 2015RC10

摘　　要：Information-centric networking(ICN) aims to improve the efficiency of content delivery and reduce the redundancy of data transmission by caching contents in network nodes. An important issue is to design caching methods with better cache hit rate and achieve allocating on-demand. Therefore, an in-network caching scheduling scheme for ICN was designed, distinguishing different kinds of contents and dynamically allocating the cache size on-demand. First discussing what was appropriated to be cached in nodes, and then a classification about the contents could be cached was proposed. Furthermore, we used AHP to weight different contents classes through analyzing users' behavior. And a distributed control process was built, to achieve differentiated caching resource allocation and management. The designed scheme not only avoids the waste of caching resource, but also further enhances the cache availability. Finally, the simulation results are illustrated to show that our method has the superior performance in the aspects of server hit rate and convergence.Information-centric networking（ICN） aims to improve the efficiency of content delivery and reduce the redundancy of data transmission by caching contents in network nodes. An important issue is to design caching methods with better cache hit rate and achieve allocating on-demand. Therefore, an in-network caching scheduling scheme for ICN was designed, distinguishing different kinds of contents and dynamically allocating the cache size on-demand. First discussing what was appropriated to be cached in nodes, and then a classification about the contents could be cached was proposed. Furthermore, we used AHP to weight different contents classes through analyzing users＇ behavior. And a distributed control process was built, to achieve differentiated caching resource allocation and management. The designed scheme not only avoids the waste of caching resource, but also further enhances the cache availability. Finally, the simulation results are illustrated to show that our method has the superior performance in the aspects of server hit rate and convergence.

关 键 词：caching resource allocation MANAGEMENT differentiation control process information-centric networking 

分 类 号：TP393.0[自动化与计算机技术—计算机应用技术]