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

Serial Cancellation List Bit Flip Decoding Method for Polar Codes

A bit-flip, polar code technology, applied in the field of serial offset list bit-flip decoding and decoding, can solve the problem that there is no bit-flip method in the CRC-SCL decoding process, and achieve the effect of improving BLER performance

Active Publication Date: 2022-05-27
SOUTHEAST UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing SCF decoding method only performs bit flipping for the SC decoding process, and there is no bit flipping method for the CRC-SCL decoding process

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
  • Serial Cancellation List Bit Flip Decoding Method for Polar Codes
  • Serial Cancellation List Bit Flip Decoding Method for Polar Codes
  • Serial Cancellation List Bit Flip Decoding Method for Polar Codes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] For the convenience of elaboration, the commonly used mathematical symbols and key concepts in the following sections are introduced as follows. First, the basic concepts of polar codes are introduced. Assume is the sequence to be encoded, and the polar code encoding sequence is where N is the length of the polar code, G N is the generator matrix of polar codes. contains K information bits and N-K frozen bits, wherein the value of the frozen bits is fixed as bit 0, and the index set of the information bits is denoted as A. Polar codes can be used as figure 1 represented by the binary tree structure in figure 1 Middle and bottom white nodes {u 1 ,u 2 ,u 3 ,u 5 } represents frozen bits, black nodes {u 4 ,u 6 ,u 7 ,u 8 } represents the information bits, ie A=={4,6,7,8}. The color of the upper layer node represents the properties of the bits to be encoded that it contains. For example, the leftmost node of the penultimate layer is white, which means that it...

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 present invention provides a serial offset list bit flip decoding method for polar codes. The method includes the following steps: the first step: constructing a bit flip index set; the second step: using a CRC-SCL decoder to receive a signal Decoding; the third step: performing SCLF decoding. The polar code serial cancellation list bit flipping (Successivecancellationlistflip, SCLF) decoding method proposed by the present invention is an improved method for the existing SCF and CRC-SCL decoding methods, and the SCLF method introduces the concept of bit flipping into CRC-SCL Among the SCL decoders, the performance of the CRC-SCL decoder is further improved, that is, after the CRC-SCL decoder finds that the decoding fails, it can still take remedial measures to make the current decoding successful.

Description

technical field [0001] The invention relates to a decoding method, in particular to a serial cancellation list bit flip decoding method of polar codes, which belongs to the technical field of channel coding in wireless communication. Background technique [0002] Polar code is the first channel coding method that can be strictly proved to achieve the capacity of binary input memoryless channel. At the same time, polar code has a low-complexity encoding and decoding method. Therefore, polar code has become a research hotspot in the field of channel coding. . In the fifth generation mobile communication standard, polar code is a channel coding scheme in the control channel. [0003] Although in the ideal case where the code rate is lower than the channel capacity and the code length is infinite, the polar code can realize error-free information transmission through the serial cancellation (SC) decoding method, but when the polar code length is limited in length At the time (...

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): H03M13/13
CPCH03M13/13
Inventor 潘志文于永润刘楠尤肖虎
Owner SOUTHEAST 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