Intra-network video buffering method based on combined buffering architecture

A technology for caching video and video, applied in the field of communication, can solve problems such as high algorithm complexity, low efficiency, and difficulty in caching video

Active Publication Date: 2017-05-17
陕西尚品信息科技有限公司
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Problems solved by technology

However, due to the contradiction between the number of videos in the Internet and the user's video needs and the limited storage capacity and link bandwidth, it is difficult to efficiently cache videos in the network
[0003] The deficiencies of the current solutions to the video caching problem in the network are: (1) relying on static configuration and time-average request arrival rate, which cannot effectively solve the problems arising in the dynamic request mode; (2) solving video caching at the same time Problems and source node selection problems lead to high complexity of the algorithm, and it takes a long time and the efficiency is too low

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  • Intra-network video buffering method based on combined buffering architecture

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Embodiment Construction

[0057] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can understand the solution of the present invention more clearly, but the protection scope of the present invention is not limited thereby.

[0058] like figure 1 As shown, the video caching method in the network based on the joint caching architecture described in the present invention is specifically as follows:

[0059] Step 1: Cache a specific video on all nodes.

[0060] For the convenience of description, let M be the set of all nodes i in the network; N be the set of all videos k that need to be cached; S k is the size of video k; λ i k Indicates the probability that node i receives a user request for video k, where λ i k ∈[0,1], can be calculated or predicted through historical statistics; y i k Indicates whether there is video k, y in the cache of node i i k = 0 means there is no video k, y i...

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Abstract

The invention discloses an intra-network video buffering method based on a combined buffering architecture. The technical solution for realizing the method includes the following steps: in a network which uses a combined buffering architecture, preserving a total buffering space with a part having a proportion of [alpha] to buffer the most popular video, and using the rest of the space to ensure that all videos buffer in the network; and after the completion of the video buffering, on the basis of dynamic changes of a video request mode and link state information, finding the best video source node for a video request party. According to the invention, the method effectively addresses the problem of intra-network video buffering, can ensure reliable and efficient saving and invoking of video data in a mobile network, saves system broadband, and efficiently lower network time delay cost.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to an intra-network video caching method based on a joint caching architecture. Background technique [0002] With the rapid development of the mobile Internet and the rapid growth of online video content, it is particularly important to improve end-user experience and reduce user costs when caching video in the network. However, due to the contradiction between the number of videos in the Internet and the user's video needs, and the limited storage capacity and link bandwidth, it is difficult to efficiently cache videos in the network. [0003] The deficiencies of the current solutions to the video caching problem in the network are: (1) relying on static configuration and time-average request arrival rate, which cannot effectively solve the problems arising in the dynamic request mode; (2) solving video caching at the same time The problem and the source node se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/231H04N21/647H04L29/08
CPCH04N21/23106H04N21/64723H04L67/5682H04L67/63
Inventor 林木森刘涛刘轩
Owner 陕西尚品信息科技有限公司
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