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LLR-based segmented flip polarization code decoding method and intelligent terminal

A polar code and decoding technology, applied in the field of channel coding, can solve the problems of poor decoding performance of polar codes with short and medium code lengths

Active Publication Date: 2019-10-25
SHENZHEN UNIV
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is: the decoding performance of short and medium code length polar codes is poor. In view of the above-mentioned defects in the prior art, the present invention provides an LLR-based segmented flip polar code decoding method, an intelligent terminal and a storage device. medium

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  • LLR-based segmented flip polarization code decoding method and intelligent terminal
  • LLR-based segmented flip polarization code decoding method and intelligent terminal
  • LLR-based segmented flip polarization code decoding method and intelligent terminal

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[0056] In order to make the object, technical solution and advantages of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit 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.

[0057] The LLR-based segmentation flipping polar code decoding method described in the preferred embodiment of the present invention, such as figure 1 Shown, a kind of LLR-based segment flip polar code decoding method, wherein, the LLR-based segment flip polar code decoding method comprises the following steps:

[0058] Step S10, calculating the LLR value of the information bit c...

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Abstract

The invention discloses an LLR-based segmented flip polarization code decoding method and an intelligent terminal. The method comprises the following steps: calculating an LLR value of an informationbit channel, counting index distribution of a low-reliability channel, and determining a segment position; performing segment coding on the information sequence according to the segment positions andthen sending the information sequence to a transmission channel; carrying out SCL decoding on the received sequence, and carrying out CRC check in a segmented mode; performing bit flipping decoding onthe sub-code segments which do not pass the CRC check; and if the flip decoding succeeds, continuing the next segment of decoding or outputting a decoding result, and if the flip decoding fails, terminating the decoding and declaring the decoding failure. According to the invention, based on the segmented decoding of the LLR, the multi-bit flipping decoding is realized, the error correction success rate is improved, the failure decoding is terminated in time, the calculation complexity is reduced, and the better decoding performance can be realized with lower calculation complexity.

Description

technical field [0001] The present invention relates to the technical field of channel coding in a communication system, in particular to an LLR-based decoding method for a segmented inverted polar code, an intelligent terminal and a storage medium. Background technique [0002] Polar code is an emerging channel coding technology, and it is also the only coding scheme that can reach the Shannon limit in theory. Polar codes are constructed on the theoretical basis of channel polarization. In the process of channel polarization, the channel capacity shifts, some channel capacity becomes larger, and the other part channel capacity becomes smaller. When the code length tends to be infinitely long, part of the channel capacity is 1, and the other part of the channel capacity is 0. At this time, the low-complexity SC (successive cancellation) decoding algorithm can realize efficient and reliable transmission decoding. But for polar codes with short and medium code lengths, not a...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00
CPCH04L1/0009H04L1/0057H04L1/0061
Inventor 何业军曹安琪张力
Owner SHENZHEN UNIV
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