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D2D playback content distribution method based on social network relationship

A technology for broadcasting content and social networking, which is applied in broadcast service distribution, network traffic/resource management, wireless communication, etc., and can solve problems such as multicast ineffectiveness

Active Publication Date: 2021-11-23
SHANGHAI MARITIME UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, multicasting may not be effective if the majority of UE-initialized operational groups are not interested in the multicast content

Method used

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  • D2D playback content distribution method based on social network relationship
  • D2D playback content distribution method based on social network relationship
  • D2D playback content distribution method based on social network relationship

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Embodiment Construction

[0049] Below figure 1 The invention will be described in detail in connection with the specific embodiments. The following examples will facilitate further understanding of the present invention in any form of techniques, but will not limit the invention in any form. It should be noted that several modifications and improvements can be made without departing from the concept of the present invention without departing from the concept of the present invention. These are all of the scope of protection of the present invention.

[0050] First explain figure 1 Basic information of the scene. Social Relationship andCommunication Degree, SCD is defined as the number of benefit recipients of a given sender, and proposes a multicast transmitter selection scheme with the SCD and related coefficients. Select a transmitter in each cycle S, initialize it to 1. Then, the number of deleted UEs (including the selected UE and the discarded UE) is N s Initialization is 0. In the first step, the po...

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Abstract

The invention discloses a D2D (D2D, device-to-device) playback content distribution method based on social network relationship, which belongs to the communication field. The present invention transmits hot content through D2D communication between neighboring users, thereby reducing the communication pressure on the core network caused by frequent content requests, and reducing the communication bandwidth and transmission capacity consumed by users to obtain required content. A user selection algorithm for content distribution is proposed. By selecting content distribution users reasonably, the average number of benefited users can be increased when users distribute multicast content. The beneficiary user here refers to the neighbor user of the selected distribution user, and the multicast content successfully received by the neighbor user is what it needs.

Description

Technical field [0001] The present invention relates to the field of communications, specifically a D2D playback content distribution method based on a social network relationship. Background technique [0002] As one of the key technologies of the fifth generation (5 g) cellular network, the equipment to the device (D2D) communication allows the user equipment (UE) directly to each other, and has recently been widely used in content delivery to increase content delivery efficiency from the core network. For D2D content delivery, in the case where the proximal UE or itself needs these content, the UE can cache these desired content in a proactive manner. Most D2D content delivery schemes can be simplified to two categories: D2D unicast and D2D multicast. For content delivery based on D2D unicast, when the UE requests some content, another UE cache this content is selected to send the requested content to this UE. For D2D multicast content delivery, the selected UE sends its cache...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/08H04W24/02H04W24/06H04W28/02
CPCH04W4/08H04W24/02H04W24/06H04W28/0221H04W28/0236
Inventor 马贵阳徐艳丽
Owner SHANGHAI MARITIME UNIVERSITY