Probabilistic Shaping Using 5G New Radio Polar Codes

An extension to the 5G New Radio polar coding chain is proposed by introducing a shaping encoder prior to the polar encoder that improves the performance with higher order modulation via probabilistic shaping. The method is based on attaching shaping bits to the data bits that force the resulting ch...

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Main Authors: Onurcan Iscan, Ronald Bohnke, Wen Xu
Format: Article
Language:English
Published: IEEE 2019-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/8636931/
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author Onurcan Iscan
Ronald Bohnke
Wen Xu
author_facet Onurcan Iscan
Ronald Bohnke
Wen Xu
author_sort Onurcan Iscan
collection DOAJ
description An extension to the 5G New Radio polar coding chain is proposed by introducing a shaping encoder prior to the polar encoder that improves the performance with higher order modulation via probabilistic shaping. The method is based on attaching shaping bits to the data bits that force the resulting channel input symbols (after rate matching, scrambling, and symbol mapping) to have a desired non-uniform distribution, such that a shaping gain is obtained. The shaping encoder is realized by using a polar decoder so that no additional hardware is required. The extension does not change the structure of the existing blocks in the transmission chain but only modifies the input parameters. The required changes at the receiver are also very small and can be realized by simple operations without increasing the required computational power. The simulation results validate the performance improvements on the additive white Gaussian noise channels, which can be more than 1 dB for typical scenarios.
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spelling doaj.art-910168adc88c45be840c5edde7fd2e602022-12-21T23:48:37ZengIEEEIEEE Access2169-35362019-01-017225792258710.1109/ACCESS.2019.28981038636931Probabilistic Shaping Using 5G New Radio Polar CodesOnurcan Iscan0https://orcid.org/0000-0003-0073-9414Ronald Bohnke1Wen Xu2German Research Center, Huawei Technologies Düsseldorf GmbH, Munich, GermanyGerman Research Center, Huawei Technologies Düsseldorf GmbH, Munich, GermanyGerman Research Center, Huawei Technologies Düsseldorf GmbH, Munich, GermanyAn extension to the 5G New Radio polar coding chain is proposed by introducing a shaping encoder prior to the polar encoder that improves the performance with higher order modulation via probabilistic shaping. The method is based on attaching shaping bits to the data bits that force the resulting channel input symbols (after rate matching, scrambling, and symbol mapping) to have a desired non-uniform distribution, such that a shaping gain is obtained. The shaping encoder is realized by using a polar decoder so that no additional hardware is required. The extension does not change the structure of the existing blocks in the transmission chain but only modifies the input parameters. The required changes at the receiver are also very small and can be realized by simple operations without increasing the required computational power. The simulation results validate the performance improvements on the additive white Gaussian noise channels, which can be more than 1 dB for typical scenarios.https://ieeexplore.ieee.org/document/8636931/5G new radiocoded modulationpolar codingprobabilistic shaping
spellingShingle Onurcan Iscan
Ronald Bohnke
Wen Xu
Probabilistic Shaping Using 5G New Radio Polar Codes
IEEE Access
5G new radio
coded modulation
polar coding
probabilistic shaping
title Probabilistic Shaping Using 5G New Radio Polar Codes
title_full Probabilistic Shaping Using 5G New Radio Polar Codes
title_fullStr Probabilistic Shaping Using 5G New Radio Polar Codes
title_full_unstemmed Probabilistic Shaping Using 5G New Radio Polar Codes
title_short Probabilistic Shaping Using 5G New Radio Polar Codes
title_sort probabilistic shaping using 5g new radio polar codes
topic 5G new radio
coded modulation
polar coding
probabilistic shaping
url https://ieeexplore.ieee.org/document/8636931/
work_keys_str_mv AT onurcaniscan probabilisticshapingusing5gnewradiopolarcodes
AT ronaldbohnke probabilisticshapingusing5gnewradiopolarcodes
AT wenxu probabilisticshapingusing5gnewradiopolarcodes