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A File Sharing Method Based on Social Network

A technology for social networking and file sharing, applied in the device-to-device field of communication technology, it can solve problems such as low security, difficulty in tracking and control, and achieve the effects of improving efficiency, reducing delay, and reducing download burden.

Active Publication Date: 2019-05-21
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current social network file sharing method has defects such as low security, difficulty in tracking and control, etc.

Method used

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  • A File Sharing Method Based on Social Network
  • A File Sharing Method Based on Social Network
  • A File Sharing Method Based on Social Network

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Experimental program
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Embodiment Construction

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0031] The technical solution adopted by the present invention to solve the technical problem is: use the small world network model to simulate the social network formed by users. Subsequently, according to the user's demand for files, the users are divided into several temporary groups, and in each group, the central user with the greatest social degree receives the target file first. Finally, according to the social relationship between users, use D2D communication technology to share with other users. These include user node trust degree algorithm Suc, group member social degree algorithm Dul, and delay algorithm Del. At the same time, the greedy color edge labeling algorithm, which is commonly used in the study of file sharing mechanism for delay calculation, is introduced to compare with our proposed delay algorithm.

[0032] User node trust degree alg...

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Abstract

The invention discloses a file sharing method based on a social network. The method provides a new method for sharing and distributing files between users based on a social network under a D2D communication environment controlled by a base station. In this method, the base station divides the users into several temporary groups according to the needs of the users, and judges the central users according to the social degree of the users. In the case that there is no need for file caching in the system, the base station first sends the file to the central user through the wireless cellular communication link, and the central user shares the file with users with social relations in the group through D2D communication. Users who have no social relationship with the central user can obtain the file from the base station or other users who have obtained the file, thereby realizing file sharing. In addition, the problem that the D2D user can only process (receive or send) one request at a time is solved. The invention can greatly reduce the transmission time delay, lighten the base station load, and optimize the overall performance of the cellular communication system.

Description

technical field [0001] The invention belongs to the technical field of device-to-device in communication technology, and in particular relates to a method for distributing and sharing files based on a social network. Background technique [0002] With the rapid development of science and technology, social networks have become an important part of human life, and gradually become the main body of message transmission and information carrying. The leaping progress of mobile communication technology has made people's social networking methods rapidly transition from traditional social networking sites to the mobile field. The formation, evolution and development of this mobile social network provide people with more convenient information exchange in their lives. Reducing the cost of material time and providing high-quality, efficient and useful information" is advancing in this direction, and its impact and role are extraordinary. At the same time, the relationship between p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08H04L12/58H04W24/02H04W28/08H04W72/04G06Q50/00
CPCH04L67/06H04L67/1095H04L67/141H04W24/02H04W28/08H04W72/0453G06Q50/01H04L51/52
Inventor 王磊周亮王涛陈鸣锴刘嘉铭
Owner NANJING UNIV OF POSTS & TELECOMM
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