Information centric networking caching method based on user interests and preferences

Abstract

The invention discloses an information centric networking caching method based on user interests and preferences, and belongs to the field of communication. The method aims at a certain user node v in an information centric networking and includes steps: firstly, the user node periodically performs statistics on content request records initiated by the node, divides request content by theme categories, and obtains the interests and the preferences of different theme categories for the user node; secondly, the user node records an interest packet of each request content passing the node and further calculates the local popularity predicted value of each request content on the user node; and finally, the information centric networking returns data packets corresponding to the interest packets along the reverse path and comprehensively performs caching decision according to the matching degree of the theme category which the content belongs to and the interests and the preferences of the user node and the local popularity predicted value of the content. According to the method, caching decision is performed through the user node, the cache replacement frequency of the node is effectively reduced, and the calculating resource of the user node is saved.

Description

technical field [0001] The invention belongs to the fields of communication methods, communication terminals, communication networks and communication data processing, and relates to information center networks, in particular to an information center network caching method based on user interests and preferences. Background technique [0002] With the development of communication networks, the main application of the future network is content distribution and sharing. At the same time, the future network will have thousands of terminals connected. Finite problems will be phased out, so a content / information-centric network will become a viable architecture for future networks. [0003] Information Centric Networking (ICN) solves the problem that in the existing end-to-end communication mode, each access to content must be indirectly mapped to the device where the content is located by focusing on the data content itself rather than the location of the data content. , thus e...

AI Technical Summary

Problems solved by technology

[0005] In the existing caching methods based on node characteristics, the limitation of node cache space is not considered enough, resulting in the need for constant replacement and updating of node cache space, a large amount of load on important nodes can easily shorten the life of nodes, and there is a lack of node pairing in social networks. The consideration of different content interest preferences leads to a large cache redundancy of nodes;

[0006] In the caching method based on content characteristics, there is a lack of integration and processing of huge data content objects. At the same time, under the social network, the distinction between users themselves is ignored. Users have different interests and preferences, and different contents are located in different locations of users Popularity also tends to vary

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