Method for improving compensation restraint of phase noise

A phase noise compensation and phase noise technology, applied in the field of phase noise compensation and suppression, to reduce the bit error rate and improve reliability

Inactive Publication Date: 2014-04-09
UNIV OF ELECTRONICS SCI & TECH OF CHINA
View PDF4 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the appearance of phase noise spreads part of the power

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
  • Method for improving compensation restraint of phase noise
  • Method for improving compensation restraint of phase noise
  • Method for improving compensation restraint of phase noise

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0027] S1. Realize channel estimation by using a channel estimation sequence, including:

[0028] S11. The channel estimation sequence is a sequence composed of some known symbols. For example, the single-carrier channel estimation sequence in the 802.11.ad standard is [-Gb 128 ,-Ga 128 ,Gb 128 ,-Ga 128 ,-Gb 128 , Ga 128 ,-Gb 128 ,-Ga 128 ,-Gb 128 ], where Ga 128 and Gb 128 is a Gray sequence.

[0029] S12. At the receiving end, we can obtain the signal in the time domain expressed as a matrix: y N×1 =A N×N h N×N x N×1 +w N×1 , where y N×1 is in the form of an N×1 column vector, which is affected by phase noise and white Gaussian noise. A N×N is an N×N diagonal matrix composed of phase noise, h N×N is the Toeplitz matrix composed of the equivalent time-domain channel impulse response, x N×1 is an N×1 column vector composed of transmitted data, w N×1 is an N×1 noise vector.

[0030] S13. We can not only use some traditional channel estimation methods, such ...

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 belongs to the technical field of wireless communication, and particularly relates to method for achieving compensation restraint of phase noise in a wireless communication system through an iteration method. The method comprises the steps that firstly, an equivalent dispersion time domain channel impulse response is estimated through a channel estimation sequence; then, a CPE of the phase noise is estimated through interpolation; finally, noise phase compensation is achieved through the iteration method. According to the method for achieving the compensation restraint of the phase noise, the reliability of the system is improved and the error rate is reduced.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to realizing the compensation and suppression of phase noise by using an iterative method in a wireless communication system. Background technique [0002] With the explosive growth of people's demand for wireless communication, spectrum resources are becoming more and more precious. Correspondingly, this requires us to better deal with phase noise issues such as local oscillators. [0003] In an actual communication system, the signal distortion generated by the analog front end will cause the system performance to degrade. Due to the trade-off of area, power consumption and cost of the RF circuit, the signal distortion generated by the analog front end is inevitable. An important linearity distortion in the analog front-end of wireless communication is caused by the random phase noise of the voltage-controlled oscillator or the phase-locked loop. [0...

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): H04L25/02H04L25/03
Inventor 袁波成先涛
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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