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Active content push method based on node semi-local centrality and content popularity

A semi-local and content-based technology, applied in the field of content active push based on node semi-local centrality and content popularity, can solve problems such as mobility support protocols and unnameable data networks, reduce node resources and storage space, and improve response times , the effect of reducing the impact

Active Publication Date: 2022-07-19
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. The new routing method based on the content name in NDN directly leads to the fact that the mobility support protocol in the current IP network cannot be directly applied to the named data network

Method used

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  • Active content push method based on node semi-local centrality and content popularity
  • Active content push method based on node semi-local centrality and content popularity
  • Active content push method based on node semi-local centrality and content popularity

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Embodiment Construction

[0033] Based on the characteristics of NDN itself, the present invention designs a scheme to support the movement of content producers, ie an active push scheme based on semi-local centrality and content popularity, combined with the cache function of NDN network nodes. When the content producer moves, the content in the node will be counted according to the popularity calculation formula. After establishing the PPC push path, the selected content with high popularity will be pushed to the core nodes in the network. The selection is made by semi-local centrality information. In order to realize the active push of content in NDN, this paper uses some functions of the PIT table (Pending Interest Table, pending interest table) to establish a way for content producers to push content to core nodes, and then complete the push of content. In this way, even if the content producer moves, the content consumer can still obtain the requested content. The biggest advantage of the presen...

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Abstract

A content active push method based on node semi-local centrality and content popularity. When the content producer moves, the core node with important value in the network actively caches the most popular content among the content generated by the content producer. , in order to achieve the purpose of improving the content availability after the content producer moves. The invention makes full use of the NDN cache mechanism and intelligent routing and forwarding strategy, and the core node with important value actively caches the content, which increases the number of responses provided after the node caches the content and the number of forwarding hops reduced after the node caches the content, and reduces content production. impact on the network caused by the movement of the user. The cache of high-temperature content reduces the node resources and storage space consumed by the cache operation, and avoids high-frequency cache replacement of core nodes.

Description

technical field [0001] The invention relates to the technical field of computer networks, in particular to a content active push method based on node semi-local centrality and content popularity. Background technique [0002] The research of NDN mobility mechanism is not only an important basis for ensuring the overall application and performance of the network, but also an important support for improving network operation efficiency and ensuring high-quality and highly reliable network services in a mobile environment. At the same time, studying the NDN mobility mechanism is also crucial for the realization of specific technologies such as content-oriented publishing, requesting, storage, routing, and forwarding in the new network system. The research of NDN mobility mechanism is divided into the movement of content consumers and the movement of content producers. For the movement of content consumers, the NDN content consumer-driven communication mechanism natively suppor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L67/568H04L67/55H04L45/02
CPCH04L45/02H04L67/55H04L67/568
Inventor 李沛谕范志辉陈曦张超武崔高林王辉
Owner HENAN UNIV OF SCI & TECH