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File content distribution method and device in d2d wireless cache network

A technology for caching files and content distribution, applied in the field of mobile communications, can solve the problem of not considering terminal mobility and social attributes, and achieve the effect of reducing the cache failure rate

Active Publication Date: 2021-03-09
BEIJING INFORMATION SCI & TECH UNIV
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  • Claims
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Problems solved by technology

Both of these allocation mechanisms do not take into account the mobility and social attributes of terminals

Method used

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  • File content distribution method and device in d2d wireless cache network
  • File content distribution method and device in d2d wireless cache network
  • File content distribution method and device in d2d wireless cache network

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Embodiment Construction

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the embodiments of the present invention.

[0023] see figure 1 , this embodiment discloses a method for distributing file content in a D2D wireless caching network, including:

[0024] S1. Based on the mobility and social attributes of smart terminals, cluster the smart terminal clusters;

[0025] S2. According to the request probability of the content of the file to be cached and the cachin...

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Abstract

The embodiment of the present invention discloses a file content distribution method and device in a D2D wireless cache network, which can reduce the cache failure rate of file content. The method includes: S1. Clustering the smart terminal cluster based on the mobility and social attributes of the smart terminal; S2. According to the request probability of the file content to be cached and the caching capability of the smart terminal, and using the logarithmic barrier method to determine the Caching the caching probability of the file content; S3. According to the clustering result of the smart terminal cluster and the caching probability of the file content to be cached, assign the file content to be cached to the smart terminal cluster.

Description

technical field [0001] Embodiments of the present invention relate to the field of mobile communications, and in particular to a method and device for distributing file content in a D2D wireless caching network. Background technique [0002] With the rapid popularization of terminal devices such as smart phones and tablet computers, the fountain of mobile data traffic seems to grow, and the balance between the carrying capacity of traditional cellular networks and the demand for mobile data traffic services is broken. Traditional techniques for increasing cellular network capacity, such as increasing spectrum resources, improving spectrum utilization, and increasing spatial reuse, are difficult to implement on a large scale due to the scarcity of spectrum resources and the high cost of deploying short-distance base stations. The D2D (Device-to-Device, device-to-device) communication technology, which is a key candidate technology for 5G, does not need to be transferred by th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/08H04W4/70H04L29/08
CPCH04W4/08H04W4/70H04L67/568
Inventor 陈昕李卓陈莹许婷婷
Owner BEIJING INFORMATION SCI & TECH UNIV
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