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Low-decoding complexity rate matching polarization code transmission method based on QUP method

A technology of rate matching and transmission method, which is applied in the field of channel coding and decoding, can solve the problem of high complexity of rate matching polar codes, and achieve the effects of reducing redundant calculations, increasing time resources, and reducing space complexity

Active Publication Date: 2017-11-24
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

[0005] The purpose of the present invention is to propose a low-decoding complexity rate-matched polar code transmission method based on the QUP method in view of the technical defect of the existing SC decoding structure for the high complexity of the rate-matched polar code

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  • Low-decoding complexity rate matching polarization code transmission method based on QUP method

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Embodiment 1

[0035] This embodiment has set forth in detail that the present invention is K=4 in information sequence length, code rate is 1 / 3, then code length is M=12, and mother code length is N=16, and channel is additive Gaussian white noise channel, and translation Steps for concrete implementation under the condition that the code mode adopts the SC decoding algorithm.

[0036] figure 1 is a schematic diagram of the polar code transmission model of the present invention, by figure 1 It can be seen that the polar code transmission model of the present invention includes an information bit selection unit, a polar coding unit, a rate matching unit, an optimized decoder structure unit, an SC / SCL decoding unit, and an adaptive coding and modulation unit, wherein the adaptive coding and modulation The unit determines the puncturing parameters according to the estimated channel state, and outputs the puncturing parameter information to the information bit selection unit and the optimized ...

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Abstract

The invention discloses a low-decoding complexity rate matching polarization code transmission method based on a QUP method, and belongs to the technical field of the channel coding / decoding. The method comprises the following steps: step one, determining a punch position and a punch parameter; step two, constructing an information sequence; step three, performing polarization coding, and outputting a coding sequence; step four, outputting the punched coding sequence according to the punch parameter determined in the step one; step five, sending the coding sequence punched in the step four one bit by one bit by a sending end; step six, receiving the coding sequence sent in the step five through channel transmission by a receiving end; step seven, optimizing a decoder structure according to the punch parameter determined in the step one, and outputting the optimized SC decoder; and step eight, performing polarization code decoding by using the SC decoder optimized in the step seven. By using the method disclosed by the invention, the spatial complexity and the time complexity of the polarization code decoding are effectively lowered, and the saved time and time source is increased along the increasing of the punch number.

Description

technical field [0001] The present invention relates to a low decoding complexity polar code transmission method, in particular to a low decoding complexity rate matching polar code transmission method based on the QUP method, which belongs to the technical field of channel coding and decoding. Background technique [0002] In 2008, the concept of channel polarization was first proposed by Arikan and introduced into coding theory. In 2009, Arikan proposed a polar coding scheme. Arikan proved that in all binary discrete memoryless channels, under SC decoding, polar codes can reach channel capacity when the code length tends to be infinite. This is the first and also It is the only known channel coding scheme that can achieve channel capacity, so polar codes have attracted widespread attention once they were proposed. Aiming at the error transmission phenomenon of SC decoding, people have improved the SC decoding algorithm. At present, the widely used decoding algorithm is th...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00
CPCH04L1/0057H04L1/0068
Inventor 费泽松王新奕孙策贾岱黄靖轩于含笑
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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