Low density parity check coding method, device and parity check matrix generating method

A parity check matrix and low density parity technology, applied in the field of coding methods and devices of low density parity check codes, can solve problems such as difficulty in applying optical fiber communication systems, high speed, high efficiency and low coding and decoding complexity, etc.
CN101047391AInactive Publication Date: 2007-10-03HUAWEI TECH CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HUAWEI TECH CO LTD
Publication Date
2007-10-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

A LDPC coding method includes confirming number L of cyclic sub-matrix required to generate odd-even calibration matrix according to coding efficiency preset by system, generating L numbers of cyclic sub-matrixes as per code length of LDPC code and confirmed number L, ensuring one of said sub-matrixes to be reversible cyclic sub-matrix, deriving out generating matrix of LDPC code according to generated cyclic sub-matrixes and obtaining bit sequence to be sent by carrying out LDPC coding on information bit to be sent according to said generating matrix. The device used for realizing said method is also disclosed.
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Description

technical field

[0001] The present invention relates to the channel coding technology in the communication system, particularly relate to a kind of coding method and device of Low-Density Parity Check (LDPC, Low-Density Parity Check) code, and a kind of generation method of LDPC code parity check matrix . Background technique

[0002] The role of a communication system is to transfer information from one place to another through a communication channel. Due to the influence of noise, interference, etc. in the communication channel, errors may occur during the transmission of information, resulting in the receiver being unable to receive it correctly. In order to improve the transmission performance of the communication system, by adding some redundant information to the transmitted information, the information errors that occur during the transmission can be found or corrected to recover the correct information. The above-mentioned process of adding redundant information t...

Claims

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