Polar-Coded Non-Coherent Communication

Peihong Yuan; Mustafa Cemil Coskun; Gerhard Kramer

doi:10.1109/LCOMM.2021.3061650

Polar-Coded Non-Coherent Communication

Peihong Yuan, Mustafa Cemil Coskun, Gerhard Kramer

Chair of Communications Engineering

Technical University of Munich

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

A polar-coded transmission (PCT) scheme with joint channel estimation and decoding is proposed for channels with unknown channel state information (CSI). The CSI is estimated via successive cancellation (SC) decoding and the constraints imposed by the frozen bits. SC list decoding with an outer code improves performance, including resolving a phase ambiguity when using quadrature phase-shift keying (QPSK) and Gray labeling. Simulations with 5G polar codes and QPSK show gains of up to 2 dB at a frame error rate (FER) of 10-4 over pilot-assisted transmission for various non-coherent models. Moreover, PCT performs within a few tenths of a dB to a coherent receiver with perfect CSI. For Rayleigh block-fading channels, PCT outperforms an FER upper bound based on random coding and operates within one dB of a lower bound.

Original language	English
Article number	9361585
Pages (from-to)	1786-1790
Number of pages	5
Journal	IEEE Communications Letters
Volume	25
Issue number	6
DOIs	https://doi.org/10.1109/LCOMM.2021.3061650
State	Published - Jun 2021

Keywords

Polar codes
blind estimation
fading channel
non-coherent communication
pilot-assisted transmission

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10.1109/LCOMM.2021.3061650

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title = "Polar-Coded Non-Coherent Communication",

abstract = "A polar-coded transmission (PCT) scheme with joint channel estimation and decoding is proposed for channels with unknown channel state information (CSI). The CSI is estimated via successive cancellation (SC) decoding and the constraints imposed by the frozen bits. SC list decoding with an outer code improves performance, including resolving a phase ambiguity when using quadrature phase-shift keying (QPSK) and Gray labeling. Simulations with 5G polar codes and QPSK show gains of up to 2 dB at a frame error rate (FER) of 10-4 over pilot-assisted transmission for various non-coherent models. Moreover, PCT performs within a few tenths of a dB to a coherent receiver with perfect CSI. For Rayleigh block-fading channels, PCT outperforms an FER upper bound based on random coding and operates within one dB of a lower bound.",

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AB - A polar-coded transmission (PCT) scheme with joint channel estimation and decoding is proposed for channels with unknown channel state information (CSI). The CSI is estimated via successive cancellation (SC) decoding and the constraints imposed by the frozen bits. SC list decoding with an outer code improves performance, including resolving a phase ambiguity when using quadrature phase-shift keying (QPSK) and Gray labeling. Simulations with 5G polar codes and QPSK show gains of up to 2 dB at a frame error rate (FER) of 10-4 over pilot-assisted transmission for various non-coherent models. Moreover, PCT performs within a few tenths of a dB to a coherent receiver with perfect CSI. For Rayleigh block-fading channels, PCT outperforms an FER upper bound based on random coding and operates within one dB of a lower bound.

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KW - blind estimation

KW - fading channel

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KW - pilot-assisted transmission

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Polar-Coded Non-Coherent Communication

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