Segmentation polarization code coding and decoding method and system based on LSC-CRC decoding

Abstract

The invention discloses a segmentation polarization code coding and decoding method and system based on LSC-CRC decoding. The method comprises steps of combining and separating a plurality of independent channels to obtain bit channels as many as the independent channels, obtaining the capacity of each bit channel, and obtaining the number of the fully polarized bit channels; dividing the free information bit sequence to be transmitted into the corresponding number of sub-sequences according to the number of fully polarized bit channels, subjecting each sub-sequence to polarization code decoding, and transmitting the encoded information to the corresponding bit channel; and after a receiving end receives the encoded information, performing segmentation decoding according to the LSC-CRC decoding algorithm, and finally connecting the obtained decoded sub-sequences in an end-to-end manner to obtain the decoding sequence. The channel coding and decoding method is simple to operate, the coding and decoding space complexity is reduced, and the decoding accuracy is improved.

Description

technical field [0001] The present invention relates to the technical field of channel coding, in particular to a segmented polar code coding and decoding method and system based on LSC-CRC decoding. Background technique [0002] Source coding is a symbol transformation to improve communication effectiveness and reduce source redundancy. By aiming at the statistical characteristics of the source output symbol sequence, a method is sought to transform the source output symbol sequence into the shortest code word sequence, so that the average amount of information carried by each symbol of the latter is the largest, and at the same time, it can ensure is true to restore the original sequence of symbols. It is an important technical means in the field of digital communication. [0003] Although various communication systems have different forms and uses, from the perspective of information transmission, storage and processing, they are essentially communication systems with t...

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Problems solved by technology

[0014] In view of the above deficiencies in the prior art, the purpose of the present invention is to provide a segmented polar code encoding and decoding method and system based on LSC-CRC decoding, aiming to solve the problem of high space complexity of the decoding technology in the prior art and the problem of decoding low accuracy problem

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