Cache Pressure Based Selective Caching Scheme for Content-centric Networks

被引：0
|
作者：
Luo X. [1 ,2 ]
An Y. [1 ]
机构：
[1] Institute of Information Security & Big Data, Central South University, Changsha
[2] Department of Information Technology, Hunan Police Academy, Changsha
来源：
An, Ying (anying@csu.edu.cn) | 2018年 / Hunan University卷 / 45期
基金：
中国国家自然科学基金;
关键词：
Cache pressure; Content-Centric Networking; In-network caching; Next generation networks; Selective caching;
D O I：
10.16339/j.cnki.hdxbzkb.2018.08.020
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
In-network caching scheme is one of the key technologies of Content Centric Networking (CCN). In some existing CCN caching schemes, the dynamic information of cache state and load condition are not fully considered so that the differences of cache state between nodes cannot be reflected accurately, which affects the reasonability of caching decision. In this paper, a Cache Pressure Based Selective Caching Scheme (CPBSC) was proposed. In this scheme, the cache occupancy rate and cache replacement rate were used to estimate the cache pressure of node. According to the cache pressure and content popularity, the caching nodes were rationally selected. Meanwhile, the content replacement is implemented based on the cache value of content which is evaluated by the content request rate and the residual time to live of Interest packet. Simulation results show that CPBSC effectively increases the resource utilization and improves the whole cache performance. © 2018, Editorial Department of Journal of Hunan University. All right reserved.
引用
收藏
页码：150 / 156
页数：6
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