Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

User pairing method for non-orthogonal multiple access system

A technology of non-orthogonal multiple access and user pairing, which is applied in the direction of transmission system, digital transmission system, and multiple use of transmission paths to achieve the effect of system performance improvement

Active Publication Date: 2018-01-19
XI AN JIAOTONG UNIV
View PDF6 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, no one has done a detailed study on this issue in non-orthogonal multiple access untrusted networks with multiple users

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
  • User pairing method for non-orthogonal multiple access system
  • User pairing method for non-orthogonal multiple access system
  • User pairing method for non-orthogonal multiple access system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] Below in conjunction with accompanying drawing and embodiment the present invention will be described in further detail:

[0039] The user pairing method for the non-orthogonal multiple access system proposed by the present invention comprises the following steps:

[0040] Step 1), establishing a multi-user non-orthogonal multiple access downlink system model;

[0041] The multi-user non-orthogonal multiple access downlink system model includes 1 base station and K users;

[0042] The base station is multi-antenna, and the user is single antenna;

[0043] Among K users, user k and user l are any two different users;

[0044] In the multi-user non-orthogonal multiple access downlink system model, the number of time slots required for data transmission is λ, the channel path loss factor of large-scale fading is α=3, and the small-scale fading is quasi-static Rayleigh fading

[0045] Step 2), according to the concept of information transmission in multiple time slots, t...

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 user pairing method for a non-orthogonal multiple access system. The method comprises the following steps of step 1) establishing a multi-user non-orthogonal multiple accessdownlink system model; step 2) obtaining a user scheduling predicate between users in the multi-user non-orthogonal multiple access downlink system model according to an average bit error rate threshold requirement inequation of the users in multi-slot transmission and the multi-user non-orthogonal multiple access downlink system model established in the step 1); and step 3) judging whether the users can be paired according to the user scheduling predicate obtained in the step 2). Through the method of the invention, the secure communication between the users can be realized.

Description

technical field [0001] The invention belongs to the field of downlink multi-user security transmission in wireless physical layer security, and in particular relates to a user pairing method for a non-orthogonal multiple access system. Background technique [0002] With the rapid development of the mobile Internet and the Internet of Things, the current cellular network is no longer sufficient to meet people's growing demand for data traffic. In order to meet people's increasing demand for traffic, the research and development of the fifth generation mobile communication system (5G) has been put on the agenda. In the face of 5G, non-orthogonal multiple access technology has attracted more and more attention from researchers because it plays a vital role in improving spectral efficiency and approaching channel capacity of multi-user networks. The essence of non-orthogonal multiple access technology is the use of non-orthogonal transmission for users' transmit power. [0003...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04W12/00H04W72/04H04W12/50
Inventor 李国兵赵菼菼吕刚明张国梅
Owner XI AN JIAOTONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com