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Calculation Method of Code Redistribution of Polar Codes

A calculation method and polar code technology are applied in the field of calculation of polar code code redistribution, which can solve the problems of occupying storage space and increasing data reading and writing time.

Active Publication Date: 2020-10-23
FUQING BRANCH OF FUJIAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This processing method not only increases the time for data reading and writing, but also takes up storage space when the outdated data is written back to the hard disk again.

Method used

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  • Calculation Method of Code Redistribution of Polar Codes
  • Calculation Method of Code Redistribution of Polar Codes
  • Calculation Method of Code Redistribution of Polar Codes

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Embodiment Construction

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0039] Such as figure 1 , is a flow chart of steps of a method for calculating polar code redistribution of the present invention,

[0040] Step 1, carry out BPSK modulation on the all-zero code word of the polar code whose code length is N, and transmit it through the noise-free AWGN channel;

[0041] Step 2, receiving soft information from the noise-free AWGN channel, and setting the number L of survival paths;

[0042] The data received from the noise-free AWG...

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Abstract

The invention belongs to the technical field of communication networks and particularly relates to a method for calculating polarization code weight distribution. The method comprises the following steps of carrying out BPSK modulation on all-zero code words of the polarization code with the code length of N and transmitting the code words through a noise-free AWGN channel; receiving soft information from the noise-free AWGN channel and setting a living path strip number L; performing list serial offset decoding to obtain L code words; calculating the weight of each code word and counting codeweight distribution. The technical scheme of the invention is based on the list serial offset decoding method; the required data are only read from the hard disk, and the data needing to be updated are only written into the hard disk; meanwhile, the over-period data are deleted as early as possible, so that not only is the hard disk storage space saved, but also the computer operation time is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of communication networks, and in particular relates to a calculation method for code redistribution of polar codes. Background technique [0002] Polar code is the only Shannon limit-reachable channel coding proposed by Erdal Arikan with a clear coding structure and a low-complexity coding scheme. It has been accepted as a channel coding scheme in the 5G communication standard. The construction of the polar code is based on the channel polarization, assuming that there are N(=2 m , m>0) mutually independent channel W with capacity I(W). The N channels may undergo multiple iterative polarizations through two operations of channel combining and channel splitting. As the code length N increases, the channel after splitting will develop towards two extremes: some of the split channels will approach the perfect channel, that is, a noise-free channel whose channel capacity approaches 1; while the other part ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H03M13/13
CPCH03M13/13H04L1/0054H04L1/0057
Inventor 陈国泰
Owner FUQING BRANCH OF FUJIAN NORMAL UNIV