CCN caching method based on content popularity and node importance

A technology of node importance and popularity, applied in the Internet field, can solve the problems of short caching time, redundancy, and unreachability of popular content, and achieve the effect of improving cache performance and reducing redundancy
CN108366089AActive Publication Date: 2018-08-03NANJING UNIV OF POSTS & TELECOMM
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
NANJING UNIV OF POSTS & TELECOMM
Publication Date
2018-08-03

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Abstract

The invention discloses a CCN caching method based on content popularity and node importance. On the basis of carrying out ranking on the content popularity, a centrality of a node is considered; whenrequest contents are returned along an original path, the contents are cached on a node with the maximum node centrality; after the node is full cached, a content popularity ranking table is generated in the node; then popularity of newly arrived contents is respectively compared to the maximum and minimum popularity in the node; and then whether the new contents are cached in the node is decided. A simulation result shows that according to the scheme, a routing node cache hit ratio is improved; and an average hop count of acquired contents is reduced.
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Description

technical field

[0001] The invention relates to the technical field of the Internet, in particular to a CCN caching method based on content popularity and node importance. Background technique

[0002] The explosive growth of Internet traffic has brought huge challenges to the computing, storage and transmission capabilities of the network. According to the company's forecast, traffic has increased by more than 100% in the past five years, and will continue to increase by nearly three times in the next five years. Among them, content-related network video traffic growth is particularly rapid. The development of the Internet has far exceeded the original idea. Users' attention and demand for content itself have made the limitations of the current end-to-end communication network centered on the host address more and more obvious.

[0003] In order to fundamentally solve the limitations of the network in transmission control, resource allocation, and address space scalabilit...

Claims

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