On sequential decoding metric function of polarization-adjusted convolutional (PAC) codes

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buir.contributor.authorMoradi, Mohsen
buir.contributor.orcidMoradi, Mohsen|0000-0001-7026-0682
dc.citation.epage7922en_US
dc.citation.issueNumber12en_US
dc.citation.spage7913en_US
dc.citation.volumeNumber69en_US
dc.contributor.authorMoradi, Mohsen
dc.date.accessioned2022-01-28T07:27:07Z
dc.date.available2022-01-28T07:27:07Z
dc.date.issued2021-09-07
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.description.abstractIn this paper, we present a sequential decoding metric function, which leads to significantly improved computational complexity while maintaining the superiority of polarizationadjusted convolutional (PAC) codes’ error-correction performance. With the proposed metric function, the PAC codes’ decoding computational complexity is comparable to the computational complexity of sequential decoding of conventional convolutional codes (CCs). Moreover, simulation results show an improvement in the error-correction performance of low rate PAC codes when using the proposed metric function. Simulation results also show that using the proposed metric, the upper bound on the PAC codes’ computational complexity has a Pareto distribution. To reduce the worst-case latency of PAC sequential decoder, we limit the number of searches performed by sequential decoder. The results show that for PAC codes of length 128, search-limited sequential decoding can achieve an error-correction performance close to the error-correction performance of polar codes with successive cancellation list decoding with list size 64 and CRC length 11 with considerably less computational complexity.en_US
dc.description.provenanceSubmitted by Evrim Ergin (eergin@bilkent.edu.tr) on 2022-01-28T07:27:07Z No. of bitstreams: 1 On_sequential_decoding_metric_function_of_polarization-adjusted_convolutional_(PAC)_codes.pdf: 1413615 bytes, checksum: 894c49291dbb392e97bab42e61ed0e03 (MD5)en
dc.description.provenanceMade available in DSpace on 2022-01-28T07:27:07Z (GMT). No. of bitstreams: 1 On_sequential_decoding_metric_function_of_polarization-adjusted_convolutional_(PAC)_codes.pdf: 1413615 bytes, checksum: 894c49291dbb392e97bab42e61ed0e03 (MD5) Previous issue date: 2021-09-07en
dc.identifier.doi10.1109/TCOMM.2021.3111018en_US
dc.identifier.eissn1558-0857
dc.identifier.issn0090-6778
dc.identifier.urihttp://hdl.handle.net/11693/76858
dc.language.isoEnglishen_US
dc.publisherIEEEen_US
dc.relation.isversionofhttps://doi.org/10.1109/TCOMM.2021.3111018en_US
dc.source.title7922en_US
dc.subjectPAC codesen_US
dc.subjectSequential decodingen_US
dc.subjectMetric functionen_US
dc.subjectThreshold spacingen_US
dc.subjectBias valueen_US
dc.titleOn sequential decoding metric function of polarization-adjusted convolutional (PAC) codesen_US
dc.typeArticleen_US

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