Neighbor-Referencing Cooperative Cache Policy in Content-Centric Network

• Published in: Applied Mechanics and Materials Vol. 433-435; no. Advances in Mechatronics and Control Engineering II; pp. 1702 - 1708
• Main Authors: Zhang, Guo Yin, Wang, Xiang Hui, Wu, Yan Xia, Tang, Bin
• Format: Journal Article
• Language: English
• Published: Zurich Trans Tech Publications Ltd 15.10.2013
• Subjects: Algorithms; Caching; Computer simulation; Efficiency; Internet; Networks; Policies; Redundancy; Referencing; Cooperative Caching; Cache Replacement Policy; LRU; Content-Centric Network
• ISBN: 303785894X; 9783037858943
• ISSN: 1660-9336; 1662-7482; 1662-7482
• DOI: 10.4028/www.scientific.net/AMM.433-435.1702

In-network caching is one of the key aspects of content-centric networks (CCN), while the cache replacement algorithm of LRU does not consider the relation between the cache contents and its neighbor nodes in the cache replacement process, which reduced the efficiency of the cache. In this paper, a Neighbor-Referencing Cooperative Cache Policy (NRCCP) in CCN has been proposed to check whether the neighbors have cached the content. Node will cache the content while none of its neighbors has cached it, therefore reduce redundancy of cached content and increase the variety of contents. Simulation results show that NRCCP has better performance, as the network path had more caching ability and more content popularity densely distributed.