Block-Based Incremental Caching for Information Centric Networking

Sung-Hwa LIM  Yeo-Hoon YOON  Young-Bae KO  Huhnkuk LIM  

IEICE TRANSACTIONS on Communications   Vol.E99-B   No.12   pp.2550-2558
Publication Date: 2016/12/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.2016CNP0010
Type of Manuscript: Special Section PAPER (Special Section on Information Centric Networking: Paradigms, Technologies, and Applications)
information centric networking,  cache replication,  multimedia services,  

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Information-Centric Networking (ICN) technology has recently been attracting substantial interest in the research community as one of the most promising future Internet architectures. The Named Data Networking (NDN) approach, which is one of the most recent instantiations of the ICN approach, would be a good choice for multimedia services, because NDN utilizes in-network storage embedded in NDN routers by caching recently or frequently requested contents. It is important to determine which data to cache at which NDN routers in order to achieve high performance, by considering not only the popularity of contents but also the inter-chunk popularity of a content item. This paper presents a chunk-block-based incremental caching scheme that considers both content and inter-chunk popularity. Our proposed scheme employs an incremental cache populating mechanism, which utilizes not only core-side but also edge-side NDN routers according to the request rate of the content item. Through simulations, we show that the proposed scheme achieves less delay, reduced redundant network traffic, and a higher cache hit ratio than legacy schemes.