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Low-complexity joint channel estimation and list decoding of short codes

Coşkun, Mustafa Cemil and Liva, Gianluigi and Östman, Johan and Durisi, Giuseppe (2019) Low-complexity joint channel estimation and list decoding of short codes. 12th International ITG Conference on Systems, Communications and Coding, Rostock, Germany.

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Abstract

A pilot-assisted transmission (PAT) scheme is proposed for short blocklengths, where the pilots are used only to derive an initial channel estimate for the list construction step. The final decision of the message is obtained by applying a non-coherent decoding metric to the codewords composing the list. This allows one to use very few pilots, thus reducing the channel estimation overhead. The method is applied to an ordered statistics decoder for communication over a Rayleigh block-fading channel. Gains of up to 1:2 dB as compared to traditional PAT schemes are demonstrated for short codes with QPSK signaling. The approach can be generalized to other list decoders, e.g., to list decoding of polar codes.

Item URL in elib:https://elib.dlr.de/127151/
Document Type:Conference or Workshop Item (Speech)
Title:Low-complexity joint channel estimation and list decoding of short codes
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Coşkun, Mustafa Cemilmustafa.coskun (at) dlr.deUNSPECIFIED
Liva, GianluigiGianluigi.Liva (at) dlr.deUNSPECIFIED
Östman, JohanChalmers Univ.UNSPECIFIED
Durisi, GiuseppeChalmers Univ.UNSPECIFIED
Date:11 February 2019
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Pilot-assisted transmission, fading channels, non-coherent transmission, list decoding, ordered-statistics decoder.
Event Title:12th International ITG Conference on Systems, Communications and Coding
Event Location:Rostock, Germany
Event Type:international Conference
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Communication and Navigation
DLR - Research area:Raumfahrt
DLR - Program:R KN - Kommunikation und Navigation
DLR - Research theme (Project):R - Vorhaben Multimedia Satellitennetze
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Satellite Networks
Deposited By: Coskun, Mustafa Cemil
Deposited On:20 May 2019 13:31
Last Modified:31 Jul 2019 20:24

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