Popularity-based equilibrium distribution caching method for named data networking

A technology of data naming and balanced distribution, which is applied in the direction of data exchange network, digital transmission system, electrical components, etc., can solve the problem of not considering the node load data cache concentration, etc., to reduce redundancy, reduce network traffic, and improve response speed effect
CN104901980AInactive Publication Date: 2015-09-09BEIJING UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BEIJING UNIV OF TECH
Publication Date
2015-09-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a popularity-based equilibrium distribution caching method for named data networking and relates to the technical field of caching in named data networking. The method comprises the steps as follows: an intermediate node judging the distance between the intermediate node itself and a node of requested data; recording popularity for each data at each intermediate node; querying a PIT table in the node to obtain a hop count H corresponding to a data package; querying a popularity table to obtain popularity P corresponding to the data package; calculating the caching value of the data, comparing the caching value of the data with a threshold value, and finally determining whether to cache the arrived data package. The popularity-based equilibrium distribution caching method of the invention improves response speed and reduces network flow, simultaneously gives consideration to cache capacity of mobile nodes and reduces the redundancy degree of data in the network.
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Description

technical field

[0001] The invention relates to the technical field of caching of a data naming network, in particular to a method for balanced distribution caching of a data naming network based on popularity. Background technique

[0002] Data Naming Network (NDN) is one of many solutions to solve the current Internet's unsuitability for content services. Focusing on the characteristics of current Internet applications, NDN no longer uses information such as IP addresses to identify content owners as routing indexes, and proposes to search and distribute data according to the name of the content, and cache data in the intermediate nodes through which the distributed data passes. In this way, the data request can be answered by the intermediate cache node without reaching the data source. The design idea of ​​NDN is mainly based on the fact that many network users or applications only focus on the content itself, and do not care about where or how the data comes from. [...

Claims

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