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A Novel Shortening Polar Code Method and System

A polar code, a new type of technology, applied in transmission systems, digital transmission systems, electromagnetic wave transmission systems, etc., can solve the problems of low system reliability, shortened polar codes, high bit error rate, low compatibility, etc., to avoid calculation. resources, uniform drilling, and the effect of improving reliability

Active Publication Date: 2022-04-26
BEIJING UNIV OF POSTS & TELECOMM
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AI Technical Summary

Problems solved by technology

A general shortening pattern such as figure 1 As shown, the general shortening mode has a high bit error rate and low compatibility of the shortened polar code, which makes the system reliability low

Method used

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  • A Novel Shortening Polar Code Method and System
  • A Novel Shortening Polar Code Method and System
  • A Novel Shortening Polar Code Method and System

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Embodiment Construction

[0055] 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 making creative efforts belong to the protection scope of the present invention.

[0056] The purpose of the present invention is to provide a novel method and system for shortening polar codes, which can reduce the bit error rate of shortened polar codes, improve compatibility, and further improve system stability.

[0057] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and s...

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Abstract

The invention relates to a novel shortening polar code method and system. The method includes determining the error probability of the corresponding split sub-channel according to the error rate of each split sub-channel in the polar code; and determining the error probability set of the polar code; performing a bit flip operation on the polar code; The grouped polar codes are grouped; and the auxiliary matrix is ​​determined for the grouped polar codes; the frozen bit set is determined according to the shortened bit set determined by the auxiliary matrix and the polar code error probability set; according to the shortened bit set, the information bit set, and the shortened polar code The code length and frozen bit set are used to shorten the polar code, and determine the shortened polar code; use the shortened polar code to encode the information transmitted in the optical fiber channel; when decoding, the code word bits of the shortened polar code correspond to The LLR value of is determined to be positive infinity, and is decoded using a polar code decoder. The invention can reduce the bit error rate of the shortened polar code, improve the compatibility, and further improve the stability of the system.

Description

technical field [0001] The invention relates to the technical field of optical fiber communication, in particular to a novel method and system for shortening polar codes. Background technique [0002] Optical fiber has become the main transmission mode in the world communication because of its transmission frequency bandwidth, high anti-interference and low signal attenuation, which is far superior to the transmission of cable and microwave communication. [0003] Even though optical fiber communication has many advantages over other communication methods, interference in communication always exists. In order to overcome the impact of external interference factors on information transmission, forward error correction coding technology is proposed to further improve transmission performance. Forward error correction code is a technology used to control errors when transmitting data in an interfering channel. Forward error correction coding technology has the characteristics ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04B10/516H03M13/13
CPCH04L1/0057H04B10/516H03M13/13
Inventor 田清华忻向军姚海鹏李万琪张尼张琦高然饶岚李志沛王富王拥军王光全
Owner BEIJING UNIV OF POSTS & TELECOMM
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