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

Single antenna descending NOMA system Power distribution method

A single-antenna, power technology, applied in power management, wireless communication, electrical components, etc., can solve problems such as performance loss and achieve the effect of increasing performance gain

Active Publication Date: 2017-05-17
RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN +1
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the power allocation method based on the Gaussian input assumption will inevitably lead to performance loss in the actual limited character input system

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
  • Single antenna descending NOMA system Power distribution method
  • Single antenna descending NOMA system Power distribution method
  • Single antenna descending NOMA system Power distribution method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0020] It should be noted that the terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. As used in the description of the present invention and the appended claims, the singular forms "a", "the" and "the" are also intended to include the plural forms unless the context clearly dictates otherwise. It should als...

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 provides a single antenna descending NOMA system power distribution method. The power distribution method comprises the following steps of calculating and obtaining each user's an achievable rate expression by using a mutual-information formula; removing an operation for acquiring an expectation in the achievable rate expression by using a Jensen inequality and an integral operation, thereby simplifying the achievable rate expression and obtaining an approximate achievable rate expression; acquiring a system optimization target function and maximizing the optimization target function by using the approximate achievable rate expression, thereby obtaining a power distribution result. The power distribution method has the advantages that the power distribution result for weighting the system and maximizing the power is acquired by a lower complexity, a certain performance gain is acquired, and the certain performance gain is increased with an enlargement of a signal-to-noise ratio.

Description

technical field [0001] The present invention relates to the technical field of wireless mobile communication, in particular to downlink data transmission in a cellular network wireless communication system, and in particular to a single-antenna downlink non-orthogonal multiple access technology (Non-orthogonal Multiple Access) under the constraints of a limited character set in an actual system. , NOMA) system power allocation method. Background technique [0002] In recent years, non-orthogonal multiple access technology (Non-orthogonal multiple access, NOMA) can provide higher spectral efficiency and support more connections at the same time than traditional orthogonal multiple access technology. , has gained widespread attention in both academia and industry. In the downlink NOMA system, data symbols sent to different users can share channel resources through superposition coding, and serial interference cancellation technology (Successive Interference Cancellation, SIC)...

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): H04W52/14H04W52/24H04W52/26H04W52/34
CPCH04W52/143H04W52/241H04W52/267H04W52/346
Inventor 王军宋健唐子涵
Owner RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN
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