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D2D Multicast Communication Clustering Method Based on User Social Attributes

A multicast communication and user technology, applied in the field of communication, can solve the problems of poor stability of D2D multicast clusters, loss of user performance, etc., and achieve the effect of improving effectiveness and reliability and realizing resource sharing.

Inactive Publication Date: 2020-12-25
XIAN UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a D2D multicast clustering method based on user social attributes to solve the problem of user performance loss caused by the poor stability of existing D2D multicast clusters

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  • D2D Multicast Communication Clustering Method Based on User Social Attributes
  • D2D Multicast Communication Clustering Method Based on User Social Attributes
  • D2D Multicast Communication Clustering Method Based on User Social Attributes

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Embodiment Construction

[0041] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0042] 1. The present invention provides a D2D multicast clustering method based on user social attributes.

[0043] 1. This method is based on a D2D communication user social attribute model, the model is as follows:

[0044] The social attributes between users are affected by the frequency of user contact, the duration of contact, user intimacy, and the way of interaction. Since the research object of this project is data transmission between D2D communication users, the present invention mainly considers the frequency and duration of content sharing between users. The degree of social connection between users is described by the number of content sharing between two users within a certain period of time and the duration of each content sharing.

[0045] Let δ n,m (t) represents the content sharing value between the nth user and the mth ...

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Abstract

The invention discloses a D2D multicast clustering method based on user social attributes. The problem of user performance loss caused by poor stability of an existing D2D multicast cluster is solved.The method comprises the following steps: S101, randomly selecting K D2D users and distributing the K D2D users into K clusters; S102, calculating a mean vector mk of each cluster; S103, for the nthuser, calculating a clustering factor distance from the nth user to each cluster; S104, dividing the user n into a cluster with the nearest clustering factor; S105, calculating a new mean vector mk'ofthe kth cluster (k = 1,..., K); S106, judging whether the new mean vector mk'of the kth cluster is equal to the mean vector mk of the current cluster or not, and if not, replacing the original mean vector with the newly calculated mean vector, if so, not changing; S107, returning to execute the steps S103-S106 until the mean vector of each cluster is equal to the result of the previous round of calculation, and at the moment, converging the algorithm; and S108, taking a result of algorithm convergence as a final clustering result.

Description

【Technical field】 [0001] The invention belongs to the technical field of communication, and in particular relates to a D2D multicast communication clustering method based on user social attributes. 【Background technique】 [0002] Huge data traffic requirements and increasingly rich types of services lead to an increasingly heavy load on wireless communication networks. According to Cisco's 2018 statistics and forecasts, from 2017 to 2022, the data volume of wireless mobile devices will increase by 7 times, and the mobile data traffic will reach 77.5 Exabytes per month in 2022. Mobile data traffic will continue to grow at a compound annual growth rate (CAGR) of 46% between 2017 and 2022. From this point of view, the demand for mobile data traffic will continue to increase sharply in the future, which poses a huge challenge to the load capacity of wireless mobile networks. [0003] As one of the key technologies of the fifth generation (5th-Generation, 5G) mobile communicati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/029H04W4/08H04W4/70H04W84/18
CPCH04W4/025H04W4/08H04W84/18H04W4/70
Inventor 龚文熔
Owner XIAN UNIV OF SCI & TECH