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Data caching substitution method based on content level and popularity in NDN/CCN

A data caching and popularity technology, applied in the field of Internet communication, can solve problems such as ignoring the difference in data requirements of the client, and achieve the effect of improving the experience of requests, improving performance, and improving utilization efficiency

Active Publication Date: 2015-11-11
CHONGQING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, like most of the current NDN data replacement and caching strategies, the differences in data requirements of clients are ignored

Method used

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  • Data caching substitution method based on content level and popularity in NDN/CCN
  • Data caching substitution method based on content level and popularity in NDN/CCN
  • Data caching substitution method based on content level and popularity in NDN/CCN

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Embodiment Construction

[0036] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0037] The method of the present invention consists of two parts, a data storage method based on the data request level and frequency and a data replacement method based on the request level and frequency. Among them, the data storage method considers the user's request level for data and the frequency of user request data, and preferably stores data at a node close to the client, so that when the same subsequent request arrives, the cache copy can be used to respond to the client request faster, and the response efficiency can be improved, and as much as possible Ensure that data with high request levels can be protected. Data replacement means that when the cache space is insufficient, the weight value of the data in the node is obtained through the request level of the data and the request frequency of the data in different time periods....

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Abstract

The invention relates to a data caching substitution method based on content level and popularity in NDN / CCN and belongs to the technical field of Internet communications. According to the method, under the premise of guaranteeing the performance of the whole NDN / CCN network, data is cached in a node as close to a client as possible when the position of a data placement node is selected, and meanwhile, in order to guarantee the performance of the whole network, the node for caching the data has relatively high requirements on both the average request level of data and the request frequency of the data; besides, when data needs to be cached in another node, the weight value of the data in the present node needs to be calculated according to the request level of the data in the present node and the request frequency of the data in different time slots if the caching space is insufficient, and then whether the existing data in a cache needs to be deleted for saving the data is judged on the basis of the weight value. Data high in request level and popularity is retained, thus improving the caching space utilization efficiency of the whole network.

Description

technical field [0001] The invention belongs to the technical field of Internet communication, and relates to a data cache replacement method based on content level and popularity in NDN / CCN. Background technique [0002] With the development of the Internet, new services and applications are constantly emerging, resulting in an explosive increase in data traffic in the network, and users' requirements for data requests continue to increase. In this context, the traditional host-centric network architecture has been difficult to meet the current development of the Internet. In order to break the shackles of the traditional Internet TCP / IP structure, researchers designed a new Internet architecture. In the study of the new network structure, data is regarded as the core of the network, and Information-Centric Networking (ICN) is regarded as a revolutionary (clean-slate) future Internet design idea, which has become the basis of future Internet design. important pattern. Am...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L29/08
Inventor 黄胜滕明埝何玉杰向劲松刘焕淋
Owner CHONGQING UNIV OF POSTS & TELECOMM
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