User selection method in multi-community multi-user interference channel system

A multi-cell multi-user, interference channel technology, applied in the field of user selection in multi-cell multi-user interference channel system, can solve the problems of high complexity of user selection scheme and poor system performance, etc.

Inactive Publication Date: 2013-04-10
ZHENGZHOU UNIV
View PDF1 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is: how to propose a low-complexity and high-performance user selection method in a multi-cell multi-user interference channel system to solve the defects of poor system performance of the OIAUS scheme and traditional user selection based on eigenvalue decomposition The problem of high program complexity

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 selection method in multi-community multi-user interference channel system
  • User selection method in multi-community multi-user interference channel system
  • User selection method in multi-community multi-user interference channel system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043]In order to make the purpose, content and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0044] The user selection method in the multi-cell multi-user interference channel system proposed by the present invention is described as follows in conjunction with the accompanying drawings and embodiments:

[0045] Such as figure 1 Shown, the present invention comprises the following steps:

[0046] S1: Obtain interference channel matrices from base stations in other cells to users in this cell, and combine the interference channel matrices with interference channel matrices for users in this cell;

[0047] The steps of obtaining the interference channel matrix of each user are as follows:

[0048] Suppose the number of user groups in the system is 3, each user group includes K users, and the number of transmitting antennas at the base station is N ...

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 selection method in a multi-community multi-user interference channel system in the technical field of communication. The user selection method in multi-community multi-user interference channel system includes: firstly, obtaining an interference channel matrix from other communities to the users in the community, and combing the interference channel matrix into an interference channel matrix of the users of the community; resolving quick response (QR) sorting the interference channel matrix of the users of the community, and obtaining a corresponding upper triangular matrix and postprocessing matrix; using the upper triangular matrix to obtain a user channel mass matrix; obtaining optimal users through the user channel mass matrix; finally, obtaining a postprocessing matrix through the interference channel matrix corresponding to the optimal users. The user selection method in the multi-community multi-user interference channel system is capable of ensuring that the users can select the system, lowering calculating complexity of channel quality information of each user, increasing handling capacity of the system, obviously improving the residual interference after user selection, and improving feasibility of the method in practical application.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a user selection method in a multi-cell multi-user interference channel system. Background technique [0002] The pursuit of higher transmission rate and higher spectral efficiency is a long-standing topic in the field of wireless communication. Multiple-antenna technology (Multiple Input Multiple Output, MIMO) introduces additional spatial freedom for wireless communication by configuring multiple antennas at the transmitting end and receiving end, thereby greatly improving the spectrum utilization and throughput of the system. With the deepening of research, MIMO technology has been extended from point-to-point single-user system to point-to-multipoint multi-user MIMO system (Multi-User MIMO: MU-MIMO). The MIMO system can greatly improve system capacity and spectrum efficiency. In the evolution of the 3GPP LTE standard, MU-MIMO technology has been adopted as an alternat...

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): H04W48/16
Inventor 高向川王忠勇朱政宇靳进王朝伟
Owner ZHENGZHOU UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap