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A D2D communication user pairing method based on social community

A user pairing and user technology, applied in the field of communication, can solve the problems of increasing pairing time and equipment energy consumption

Active Publication Date: 2021-01-22
SOUTH CHINA NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Distributed approach is more flexible, but increases pairing time and device power consumption due to beacon signals and complex scanning

Method used

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  • A D2D communication user pairing method based on social community
  • A D2D communication user pairing method based on social community
  • A D2D communication user pairing method based on social community

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] This embodiment provides a D2D communication user pairing method based on a social community, and its features include:

[0060] (1) In D2D communication user pairing, it is necessary to consider how to select the target user and whether the target user agrees to the communication request of the D2D transmitter. It can be considered from two levels: the physical layer and the social layer. In terms of the physical layer, the distance between D2D users is shortened, the path loss is reduced, and the throughput of the system is increased. In terms of the social layer, select users with strong social relationships for matching to increase the success rate of matching.

[0061] (2) For the physical layer, after the user initiates a D2D connection request, the base station checks that the nearby distance is less than the maximum constraint distance d of D2D communication max According to the principle of optimal system throughput, users with a short distance and can be pair...

Embodiment 2

[0115] This embodiment provides a D2D communication user pairing method based on a social community, including:

[0116] In the D2D communication user pairing, consider the selection of the target user and whether the target user agrees to the communication request of the D2D transmitter from two levels: the physical layer and the social layer. In terms of the physical layer, shorten the distance between D2D users, reduce path loss, increase System throughput; In terms of social layer, select users with strong social relationship for matching to increase the success rate of matching;

[0117] For the physical layer, after the user initiates a D2D connection request, the base station checks the distance less than the maximum constraint distance d of D2D communication max users, according to the principle of optimal system throughput, select users with short distance and can be paired to maximize the system throughput;

[0118] For the social layer, the mobile social network is...

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Abstract

The invention discloses a method for pairing D2D communication users based on a social community. In the device discovery of device-to-device (D2D) communication, the social attribute of the social network is introduced, and the social interaction between mobile users promotes the cooperation of D2D users. , to optimize pairing between D2D users. According to the three social attributes in the social network, which are social relationship, social group and centrality, the weighted combination is carried out to form the social trust value among users. According to the modularity-based community discovery algorithm Louvain algorithm and the social trust value between users, D2D communication user pairing is designed using the attributes of social networks, and the system is put into two levels: the physical level and the social level. In terms of the physical layer, shorten the distance between D2D users, find the shortest distance target users, and increase the throughput of D2D users. In terms of social layer, according to the algorithm of using social network attributes to divide the network, a D2D user pairing method based on social community is proposed.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to D2D communication technology, and in particular to a social community-based D2D communication user pairing method. Background technique [0002] In the evolution to the fifth-generation mobile communication system, D2D communication is one of the key technologies of 5G. D2D communication allows terminals to directly transmit data with short-distance users by multiplexing the authorized frequency band resources of cellular users without going through the base station. , solve the base station load problem, improve spectrum utilization and system throughput. The key technologies of D2D communication method include user pairing, mode selection, resource allocation, power control and interference coordination. In the key technology of D2D communication, user pairing is the first step of D2D communication, and it is also a key step, because user pairing is the foundati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W48/16H04W76/14G06Q50/00
CPCG06Q50/01H04W48/16H04W76/14
Inventor 潘达儒梁祥逸宋晖杨汝佳
Owner SOUTH CHINA NORMAL UNIVERSITY
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