Supercharge Your Innovation With Domain-Expert AI Agents!

A Polar Coded Pilot Symbol Selection Method

A technology of pilot symbols and polar codes, applied in the field of polar codes, to achieve the effect of satisfying the validity structure, improving performance, and facilitating decoding

Active Publication Date: 2019-07-23
ANHUI UNIVERSITY
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the defect that there is no pilot design for polar codes in the prior art, and to provide a method for selecting pilot symbols of polar codes to solve the above problems

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
  • A Polar Coded Pilot Symbol Selection Method
  • A Polar Coded Pilot Symbol Selection Method
  • A Polar Coded Pilot Symbol Selection Method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] In order to have a further understanding and understanding of the structural features of the present invention and the achieved effects, the preferred embodiments and accompanying drawings are used for a detailed description, as follows:

[0040] Such as figure 1 As shown, a kind of polar code pilot symbol selection method of the present invention comprises the following steps:

[0041] The first step is the setting of the polar code. According to the obtained polar code, the validity encoding condition of the polar code is set.

[0042] Here, the validity coding condition is in matrix form: (G II ) -1 =G II To represent. G II is a generating matrix G N The submatrix of G , where G II The rows and columns of are from the information set I. On the basis of effective coding conditions, two pilot selection methods (non-uniform pilot selection method and uniform pilot selection method) are proposed. Since the pilot is selected in the coded symbols, a new coded set...

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 relates to a polar code pilot symbol selection method, which solves the defect that there is no pilot design for the polar code compared with the prior art. The present invention includes the following steps: polar code setting, setting polar code validity coding conditions according to the acquired polar code; coding set identification setting; pilot symbol selection in set I; Selection of pilot symbols in set F; determination of coding set C. The invention selects the pilot symbol in the coding symbol, improves the performance of the polar code in the finite field, and maintains the existing effective structure.

Description

technical field [0001] The present invention relates to the technical field of polar codes, in particular to a method for selecting pilot symbols of polar codes. Background technique [0002] Polar codes are well known because they can reach the Shannon limit for a variety of symmetric discrete memoryless channels (DMCs), and they have a clear code construction method and low encoding and decoding complexity, so they are selected as control channels. Enhanced coding methods in 5G. [0003] Channel estimation is a fundamental step in fading channels when polar codes are applied to wireless communications. For both systematic and non-systematic polar codes, their structures are based on information sets and known dormant bits, and efficient implementations exist in both. In channel estimation or channel tracking, the traditional method is to add extra pilot symbols in the codeword, LS and MMSE are also often used in channel estimation techniques, such as inserting pilot symb...

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 Patents(China)
IPC IPC(8): H04L25/02
CPCH04L25/0224
Inventor 李莉萍徐祖政胡艳军
Owner ANHUI UNIVERSITY
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com