Unlock instant, AI-driven research and patent intelligence for your innovation.

D2D communication physical layer safety power distribution method based on NOMA

A physical layer security and allocation method technology, applied in the field of NOMA-based D2D communication physical layer security power allocation, can solve the problems of complex security processing, complex interference management, and difficulty in ensuring D2D link security, and achieve resistance to eavesdropping, Improving spectral efficiency and improving system capacity

Pending Publication Date: 2021-12-10
SHANDONG UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In terms of security, D2D communication usually counters eavesdroppers in the network by interfering with the cellular link, but the security of the D2D link itself is difficult to guarantee
Applying NOMA to D2D communication will introduce co-channel interference, which makes interference management more complicated. In the case of eavesdroppers, the security processing will be more complicated

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • D2D communication physical layer safety power distribution method based on NOMA
  • D2D communication physical layer safety power distribution method based on NOMA
  • D2D communication physical layer safety power distribution method based on NOMA

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] In order to describe the technical content of the present invention more clearly, the present invention will be further described below in conjunction with the accompanying drawings.

[0027] The present invention proposes a D2D communication physical layer security power allocation method based on NOMA, considering the physical layer security problem of D2D communication under passive eavesdropping, ensuring the service quality of each D2D user, and the cellular user and D2D group transmitter power is limited In the case of , construct an optimization problem with the goal of maximizing the confidentiality rate of D2D group communication. By optimizing the D2D transmitter DT to the receiver DR 1 and DR 2 The power allocation to maximize the confidentiality rate of the D2D communication system. According to the KKT condition, the closed-form solution of the optimal power allocation in the two cases is deduced, and then the final power allocation method is obtained by ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a D2D communication physical layer safety power distribution method based on NOMA, belongs to the technical field of wireless communication, and solves the problem of physical layer safety of D2D communication under passive eavesdropping and the problem of constructing optimization aiming at maximizing the D2D communication secrecy rate under the condition of ensuring the service quality of each D2D user. The power distribution of the DR1 and the DR2 by the D2D group transmitter DT is optimized, so that the secrecy rate of the D2D communication system is maximized. According to the KKT condition, the closed-form solution of the optimal power distribution under the two conditions is derived, and then the final optimal power distribution method is obtained by comparing the confidentiality total rates of the D2D communication system under the two conditions. Compared with the secrecy rate and the energy efficiency of a D2D communication network based on OMA, the provided power distribution method has higher secrecy rate and energy efficiency.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a NOMA-based D2D communication physical layer security power allocation method. Background technique [0002] With the rise of intelligent services such as smart homes, smart cities, Internet of Things, and smart grids, there will be a large number of mobile terminals with limited energy access to the network in the future. In this context, the efficient use of spectrum resources, the effective and repeated use of energy are increasingly concerned by industry and academia. The number of users accessing the 4G wireless communication network using Orthogonal Multiple Access (OMA) is limited by limited orthogonal resources, which cannot satisfy the access of a large number of users to a certain extent. Different from orthogonal multiple access, non-orthogonal multiple access (NOMA) in the power domain is one of the key technologies of 5G. It distinguishes dif...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04W4/70H04W12/122H04W52/14H04W52/24H04W52/26
CPCH04W4/70H04W12/122H04W52/146H04W52/241H04W52/243H04W52/267
Inventor 刘琚徐田凤于山山高智超邬磊
Owner SHANDONG UNIV