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A parallel polar code decoding method and device

A polar code and decoding technology, applied in the field of communication, can solve the problem of low decoding performance of SCL decoder, and achieve the effect of improving decoding performance

Active Publication Date: 2020-08-07
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the L of the SCL decoder is small, the decoding performance of the SCL decoder is low

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  • A parallel polar code decoding method and device
  • A parallel polar code decoding method and device
  • A parallel polar code decoding method and device

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Embodiment Construction

[0071] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. . Based on the embodiments in 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 embodiments of the present invention.

[0072] Aiming at the problem in the prior art that the decoding performance of a single SCL decoder is low when the L of the SCL decoder is small, the embodiment of the present invention provides a parallel polar code decoding method and device to obtain a single channel Receiving signals, sorting the predetermined a priori error modes, receiving signals through a single channel, and constructing k × M groups...

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Abstract

The embodiment of the invention provides a parallel polar code decoding method and a parallel polar code decoding device. The method comprises the following steps: acquiring single channel receive signals, and sorting each pre-determined prior error mode according to the pre-determined prior error modes; receiving signals over a single channel, k*M groups of different channel receiving values areconstructed from k*M priori error modes preselected from the priori error modes, M decoders are operated in parallel to decode the channel receiving values of the respective decoders at this time, andeach input of each decoder in the M decoders is the M groups of different channel receiving values. Therefore, compared with a single decoder in the prior art for decoding, the decoders can be operated in parallel for decoding, so that the decoding performance is improved.

Description

technical field [0001] Embodiments of the present invention relate to the field of communication technologies, and in particular, to a parallel polar code decoding method and device. Background technique [0002] Polar Code Polar Code is a forward error correction coding method for signal transmission. Polar codes are the first channel coding techniques that can reach the Shannon limit through theoretical proof, and have practical linear complexity coding and decoding capabilities. [0003] At present, polar codes can be decoded using a variety of decoding methods. Here, the serial cancellation list (successive cancellation list, SCL) decoding method is used to illustrate: [0004] The value of L in the SCL decoder is greater than or equal to 2, assuming that the value of L here is 8. The SCL decoder receives a single-channel received signal; uses a single-channel received signal to determine 8 candidate paths to be decoded; decodes each candidate path, and uses Cyclic Red...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H03M13/13H03M13/09
CPCH03M13/091H03M13/13H04L1/0052H04L1/0057H04L1/0061
Inventor 牛凯董超董雁飞
Owner BEIJING UNIV OF POSTS & TELECOMM