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Solution method for reduction of content obtaining delay in mobile content center network

A content-centric network and content acquisition technology, which is applied in the field of prefetch operation strategy for content targets, can solve problems such as prefetch operation research, achieve the effects of reducing average delay, making full use of network resources, and protecting fairness

Inactive Publication Date: 2019-01-11
CHONGQING UNIV OF POSTS & TELECOMM
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AI Technical Summary

Problems solved by technology

Most of the previous research work focused on the establishment of the prefetch model, and did not study the specific way of the prefetch operation

Method used

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  • Solution method for reduction of content obtaining delay in mobile content center network
  • Solution method for reduction of content obtaining delay in mobile content center network
  • Solution method for reduction of content obtaining delay in mobile content center network

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Embodiment Construction

[0041] Below in conjunction with accompanying drawing, the present invention will be further described:

[0042] image 3 It is a work flow diagram of a solution to reduce the content acquisition delay in the mobile content-centric network according to the present invention. As shown in the figure, the solution includes popularity list, prefetch list, congestion control and prefetch specific operations four parts. Among them, the popularity list and the prefetch list are mainly used to determine the content object to be prefetched in advance, and the specific operation of congestion control and prefetch is to perform a specific operation process on the given prefetched content.

[0043] Refer to the attached Figure 9 , illustrating the specific steps of a solution to reduce the content acquisition delay in the mobile content-centric network:

[0044] Step 801: The cache node C ranks according to the initial content popularity, obtains the content popularity list, and sets ...

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Abstract

The present invention provides a solution scheme for reduction of content obtaining delay in a mobile content center network, belonging to the technical field of communication. The scheme mainly comprises the steps of: establishing of a content popularity list, establishing of a prefetching list, congestion control and prefetch concrete operation. The content popularity list and the prefetching list are employed to determine content required being prefetched, and a cache node performs perfetching of the content according to a pre-triggering mode, employs explicit congestion control to performdynamic regulation for a content prefetching window according to a network state and combines the prefetching concrete operation to complete prefetching of the content. The scheme employs features that the content in the content center network can be further segmented into blocks to perform prefetching for the following-up blocks of the given content and gradually push the following-up content blocks to nodes close to the users so as to reduce the delay of the users obtaining content.

Description

technical field [0001] The invention belongs to the technical field of communication, and relates to a prefetch operation strategy of content objects in a mobile content center network. Background technique [0002] Content-Centric Networks (CCN) is a content-centric network, which is an important part of the future network architecture. The content-centric network is content-centric rather than host-centric, that is, the core of the entire network is content, and different content is identified by naming. The main responsibility of CCN is to effectively cache and efficiently distribute content throughout the network, so as to quickly return the correct content to users. One of the most important features of the CCN network is the built-in cache of the network. Since the content in the network is named based on the name, the CCN cache router can identify the content and perform operations such as marking and forwarding it. Therefore, some content can be cached in the networ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/02H04W28/14
CPCH04W28/0289H04W28/14
Inventor 段洁邢媛韩健赵国锋曾帅
Owner CHONGQING UNIV OF POSTS & TELECOMM
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