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A Socially Aware D2D Network Secure Transmission Method

A technology of network security and transmission method, applied in the field of physical layer security transmission, which can solve the problems that nodes cannot achieve improved confidentiality capacity, and do not consider the nature of social networks between actual users.

Active Publication Date: 2020-08-18
XI AN JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, most of the existing studies assume that the D2D nodes in the network are friendly nodes, without considering the nature of the social network between actual users, only considering the physical properties of the nodes, so it is assumed that the nodes are all friendly nodes when receiving interference requests After that, it will take the initiative to help with interference, but in practice, the nodes may refuse to help with interference and fail to achieve the purpose of improving the confidentiality capacity

Method used

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  • A Socially Aware D2D Network Secure Transmission Method
  • A Socially Aware D2D Network Secure Transmission Method
  • A Socially Aware D2D Network Secure Transmission Method

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Embodiment Construction

[0117] The present invention is further described below in conjunction with accompanying drawing:

[0118] see Figure 1-Figure 5 In order to solve the problems mentioned above, the present invention will utilize the social attributes of the devices to enhance the confidentiality performance of the network considering that the devices have social relationships. The invention combines the physical layer attributes and social attributes of nodes, and enhances confidentiality through resource allocation. A socially aware D2D network security transmission scheme is designed.

[0119] The present invention grades the social relationship among D2Ds, selects friendly nodes to help interference according to the social attributes and physical attributes of the nodes, and considers power control. Specifically, the present invention first establishes the utility functions of transmission nodes and idle nodes in the D2D network according to the social attributes and physical attributes ...

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Abstract

The invention discloses a D2D network secure transmission method with social awareness. The method comprises the following steps of S1, establishing a system model, and establishing a single-cell single-channel communication scene with N pairs of D2D equipment; S2, classifying social relationships of nodes under the system model in the S1; S3, establishing an utility function for the nodes in theequipment under the classification of the S2; S4, establishing an optimization problem according to the utility function, and solving the problem through cooperative game; S5, updating the social relationships; and S6, evaluating system performance through simulation.

Description

technical field [0001] The invention belongs to the technical field of physical layer security transmission in 5G networks, and in particular relates to a D2D network security transmission method with social awareness. Background technique [0002] With the development of 5G wireless communication, traditional performance indicators such as speed and spectrum efficiency in wireless communication need to be further improved, and the demand for spectrum resources has greatly increased. At the same time, the increasingly rich communication modes and the expansion of cellular network communication are also evolution directions that need to be considered. As a key technology for 5G, D2D communication has received extensive attention. The information of the D2D communication is transmitted directly without being transferred by the base station, thereby greatly reducing the burden on the base station to establish a connection for the D2D communication. D2D users reuse the frequen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/70H04W12/02H04W52/26
CPCH04W4/70H04W12/02H04W52/267
Inventor 王熠晨王璐杨子欢王弢李壮
Owner XI AN JIAOTONG UNIV
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