{"id":"https://openalex.org/W3174486372","doi":"https://doi.org/10.1109/itw46852.2021.9457656","title":"Optimization of Irregular NB QC-LDPC Block Codes over Small Alphabets","display_name":"Optimization of Irregular NB QC-LDPC Block Codes over Small Alphabets","publication_year":2021,"publication_date":"2021-04-11","ids":{"openalex":"https://openalex.org/W3174486372","doi":"https://doi.org/10.1109/itw46852.2021.9457656","mag":"3174486372"},"language":"en","primary_location":{"id":"doi:10.1109/itw46852.2021.9457656","is_oa":false,"landing_page_url":"https://doi.org/10.1109/itw46852.2021.9457656","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2020 IEEE Information Theory Workshop (ITW)","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5018999589","display_name":"Irina E. Bocharova","orcid":"https://orcid.org/0000-0002-6460-4626"},"institutions":[{"id":"https://openalex.org/I56085075","display_name":"University of Tartu","ror":"https://ror.org/03z77qz90","country_code":"EE","type":"education","lineage":["https://openalex.org/I56085075"]},{"id":"https://openalex.org/I173089394","display_name":"ITMO University","ror":"https://ror.org/04txgxn49","country_code":"RU","type":"education","lineage":["https://openalex.org/I173089394"]}],"countries":["EE","RU"],"is_corresponding":true,"raw_author_name":"Irina E. Bocharova","raw_affiliation_strings":["University of Information Technologies, Mechanics and Optics,St. Petersburg,Russia,197101","University of Tartu, Estonia, Tartu, Estonia"],"affiliations":[{"raw_affiliation_string":"University of Information Technologies, Mechanics and Optics,St. Petersburg,Russia,197101","institution_ids":["https://openalex.org/I173089394"]},{"raw_affiliation_string":"University of Tartu, Estonia, Tartu, Estonia","institution_ids":["https://openalex.org/I56085075"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5088880021","display_name":"Boris D. Kudryashov","orcid":"https://orcid.org/0000-0002-5865-5283"},"institutions":[{"id":"https://openalex.org/I173089394","display_name":"ITMO University","ror":"https://ror.org/04txgxn49","country_code":"RU","type":"education","lineage":["https://openalex.org/I173089394"]},{"id":"https://openalex.org/I56085075","display_name":"University of Tartu","ror":"https://ror.org/03z77qz90","country_code":"EE","type":"education","lineage":["https://openalex.org/I56085075"]}],"countries":["EE","RU"],"is_corresponding":false,"raw_author_name":"Boris D. Kudryashov","raw_affiliation_strings":["University of Information Technologies, Mechanics and Optics,St. Petersburg,Russia,197101","University of Tartu, Estonia, Tartu, Estonia"],"affiliations":[{"raw_affiliation_string":"University of Information Technologies, Mechanics and Optics,St. Petersburg,Russia,197101","institution_ids":["https://openalex.org/I173089394"]},{"raw_affiliation_string":"University of Tartu, Estonia, Tartu, Estonia","institution_ids":["https://openalex.org/I56085075"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5047884155","display_name":"Evgenii P. Ovsyannikov","orcid":"https://orcid.org/0000-0002-3388-6368"},"institutions":[{"id":"https://openalex.org/I130523015","display_name":"Saint Petersburg State University of Aerospace and Instrumentation","ror":"https://ror.org/02rsxaa93","country_code":"RU","type":"education","lineage":["https://openalex.org/I130523015"]}],"countries":["RU"],"is_corresponding":false,"raw_author_name":"Evgenii P. Ovsyannikov","raw_affiliation_strings":["State University of Aerospace Instrumentation,St. Petersburg,Russia,190000"],"affiliations":[{"raw_affiliation_string":"State University of Aerospace Instrumentation,St. Petersburg,Russia,190000","institution_ids":["https://openalex.org/I130523015"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5048122752","display_name":"Vitaly Skachek","orcid":"https://orcid.org/0000-0002-0626-2437"},"institutions":[{"id":"https://openalex.org/I56085075","display_name":"University of Tartu","ror":"https://ror.org/03z77qz90","country_code":"EE","type":"education","lineage":["https://openalex.org/I56085075"]}],"countries":["EE"],"is_corresponding":false,"raw_author_name":"Vitaly Skachek","raw_affiliation_strings":["University of Tartu, Estonia,Tartu,Estonia,50409"],"affiliations":[{"raw_affiliation_string":"University of Tartu, Estonia,Tartu,Estonia,50409","institution_ids":["https://openalex.org/I56085075"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5074271105","display_name":"T\u00e4hvend Uustalu","orcid":"https://orcid.org/0000-0002-7037-2462"},"institutions":[{"id":"https://openalex.org/I56085075","display_name":"University of Tartu","ror":"https://ror.org/03z77qz90","country_code":"EE","type":"education","lineage":["https://openalex.org/I56085075"]}],"countries":["EE"],"is_corresponding":false,"raw_author_name":"Tahvend Uustalu","raw_affiliation_strings":["University of Tartu, Estonia,Tartu,Estonia,50409"],"affiliations":[{"raw_affiliation_string":"University of Tartu, Estonia,Tartu,Estonia,50409","institution_ids":["https://openalex.org/I56085075"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5018999589"],"corresponding_institution_ids":["https://openalex.org/I173089394","https://openalex.org/I56085075"],"apc_list":null,"apc_paid":null,"fwci":0.3056,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.58403176,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":96},"biblio":{"volume":"1","issue":null,"first_page":"1","last_page":"5"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11321","display_name":"Error Correcting Code Techniques","score":1.0,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11321","display_name":"Error Correcting Code Techniques","score":1.0,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10125","display_name":"Advanced Wireless Communication Techniques","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10796","display_name":"Cooperative Communication and Network Coding","score":0.9980000257492065,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/low-density-parity-check-code","display_name":"Low-density parity-check code","score":0.8783551454544067},{"id":"https://openalex.org/keywords/tanner-graph","display_name":"Tanner graph","score":0.7399848103523254},{"id":"https://openalex.org/keywords/decoding-methods","display_name":"Decoding methods","score":0.644574761390686},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.5592589974403381},{"id":"https://openalex.org/keywords/concatenated-error-correction-code","display_name":"Concatenated error correction code","score":0.5362619161605835},{"id":"https://openalex.org/keywords/block-code","display_name":"Block code","score":0.5155699253082275},{"id":"https://openalex.org/keywords/parity-check-matrix","display_name":"Parity-check matrix","score":0.49851036071777344},{"id":"https://openalex.org/keywords/finite-field","display_name":"Finite field","score":0.48815399408340454},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.4392918348312378},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.43780848383903503},{"id":"https://openalex.org/keywords/hamming-code","display_name":"Hamming code","score":0.42575353384017944},{"id":"https://openalex.org/keywords/linear-code","display_name":"Linear code","score":0.41370752453804016},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.3445113003253937}],"concepts":[{"id":"https://openalex.org/C67692717","wikidata":"https://www.wikidata.org/wiki/Q187444","display_name":"Low-density parity-check code","level":3,"score":0.8783551454544067},{"id":"https://openalex.org/C87117866","wikidata":"https://www.wikidata.org/wiki/Q7683664","display_name":"Tanner graph","level":5,"score":0.7399848103523254},{"id":"https://openalex.org/C57273362","wikidata":"https://www.wikidata.org/wiki/Q576722","display_name":"Decoding methods","level":2,"score":0.644574761390686},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.5592589974403381},{"id":"https://openalex.org/C78944582","wikidata":"https://www.wikidata.org/wiki/Q5158264","display_name":"Concatenated error correction code","level":4,"score":0.5362619161605835},{"id":"https://openalex.org/C157125643","wikidata":"https://www.wikidata.org/wiki/Q884707","display_name":"Block code","level":3,"score":0.5155699253082275},{"id":"https://openalex.org/C95925971","wikidata":"https://www.wikidata.org/wiki/Q3100414","display_name":"Parity-check matrix","level":4,"score":0.49851036071777344},{"id":"https://openalex.org/C77926391","wikidata":"https://www.wikidata.org/wiki/Q603880","display_name":"Finite field","level":2,"score":0.48815399408340454},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.4392918348312378},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.43780848383903503},{"id":"https://openalex.org/C73150493","wikidata":"https://www.wikidata.org/wiki/Q853922","display_name":"Hamming code","level":4,"score":0.42575353384017944},{"id":"https://openalex.org/C2400350","wikidata":"https://www.wikidata.org/wiki/Q1752667","display_name":"Linear code","level":4,"score":0.41370752453804016},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.3445113003253937}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/itw46852.2021.9457656","is_oa":false,"landing_page_url":"https://doi.org/10.1109/itw46852.2021.9457656","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2020 IEEE Information Theory Workshop (ITW)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.6600000262260437,"id":"https://metadata.un.org/sdg/4","display_name":"Quality Education"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":20,"referenced_works":["https://openalex.org/W1982872379","https://openalex.org/W2015684392","https://openalex.org/W2098666392","https://openalex.org/W2136204051","https://openalex.org/W2142655068","https://openalex.org/W2158710434","https://openalex.org/W2173776306","https://openalex.org/W2201739330","https://openalex.org/W2205421834","https://openalex.org/W2690179980","https://openalex.org/W2743637348","https://openalex.org/W2744698717","https://openalex.org/W2888021163","https://openalex.org/W2984973237","https://openalex.org/W3036957491","https://openalex.org/W3102119770","https://openalex.org/W4287753583","https://openalex.org/W4300188436","https://openalex.org/W6687623625","https://openalex.org/W6779632207"],"related_works":["https://openalex.org/W2350442631","https://openalex.org/W2367967120","https://openalex.org/W2883494139","https://openalex.org/W2277489942","https://openalex.org/W2460434904","https://openalex.org/W2058933018","https://openalex.org/W1590794928","https://openalex.org/W2164611661","https://openalex.org/W2125647673","https://openalex.org/W1793009983"],"abstract_inverted_index":{"We":[0],"propose":[1],"a":[2],"novel":[3],"approach":[4],"for":[5,52,82],"optimization":[6],"of":[7,36,54,60,65,85,93,98,121,146,154],"nonbinary":[8],"(NB)":[9],"quasi-cyclic":[10],"(QC)-LDPC":[11],"codes.":[12,88],"In":[13,132],"this":[14],"approach,":[15],"the":[16,23,32,37,47,66,77,83,94,110,119,122,129,133,136,139,143,147,151,155],"base":[17],"parity-check":[18],"matrices":[19],"are":[20,70,74],"constructed":[21],"by":[22],"simulated":[24],"annealing":[25],"method,":[26],"and":[27,107,150],"then":[28],"labeled":[29],"while":[30],"maximizing":[31],"so-called":[33],"generalized":[34],"girth":[35],"NB":[38,57,86,101],"LDPC":[39,58,87],"code":[40,127],"Tanner":[41],"graph.":[42],"Random":[43],"coding":[44,113],"bounds":[45,73,141],"on":[46,76,142],"ML":[48,148],"decoding":[49,97,149,157],"error":[50,144],"probability":[51,145],"ensembles":[53,84],"\"almost":[55,99],"regular\"":[56,100],"codes":[59,104],"finite":[61],"lengths":[62],"over":[63],"extensions":[64],"binary":[67,124],"Galois":[68],"field":[69],"derived.":[71],"These":[72],"based":[75],"average":[78],"bit":[79],"weight":[80],"spectra":[81],"The":[89],"observed":[90],"FER":[91],"performance":[92,120,153],"sum-product":[95],"BP":[96,156],"QC-LDPC":[102,125],"block":[103,126],"is":[105,158],"presented":[106],"compared":[108],"to":[109,118],"finite-length":[111,140],"random":[112],"bounds,":[114],"as":[115,117],"well":[116],"optimized":[123],"in":[128],"5G":[130],"standard.":[131],"waterfall":[134],"region,":[135],"gap":[137],"between":[138],"simulation":[152],"about":[159],"0.1":[160],"\u2013":[161],"0.2":[162],"dB.":[163]},"counts_by_year":[{"year":2022,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
