{"id":"https://openalex.org/W2770597477","doi":"https://doi.org/10.1109/afrcon.2017.8095475","title":"A low complexity encoder construction for systematic quasi-cyclic LDPC codes","display_name":"A low complexity encoder construction for systematic quasi-cyclic LDPC codes","publication_year":2017,"publication_date":"2017-09-01","ids":{"openalex":"https://openalex.org/W2770597477","doi":"https://doi.org/10.1109/afrcon.2017.8095475","mag":"2770597477"},"language":"en","primary_location":{"id":"doi:10.1109/afrcon.2017.8095475","is_oa":false,"landing_page_url":"https://doi.org/10.1109/afrcon.2017.8095475","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2017 IEEE AFRICON","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/A5014131135","display_name":"Yuval Genga","orcid":"https://orcid.org/0000-0001-5467-8317"},"institutions":[{"id":"https://openalex.org/I192619145","display_name":"University of the Witwatersrand","ror":"https://ror.org/03rp50x72","country_code":"ZA","type":"education","lineage":["https://openalex.org/I192619145"]}],"countries":["ZA"],"is_corresponding":true,"raw_author_name":"Yuval Genga","raw_affiliation_strings":["School of Electrical & Information Engineering, University of the Witwatersrand, Johannesburg, South Africa"],"affiliations":[{"raw_affiliation_string":"School of Electrical & Information Engineering, University of the Witwatersrand, Johannesburg, South Africa","institution_ids":["https://openalex.org/I192619145"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5019839928","display_name":"Olayinka O. Ogundile","orcid":"https://orcid.org/0000-0002-2053-6086"},"institutions":[{"id":"https://openalex.org/I192619145","display_name":"University of the Witwatersrand","ror":"https://ror.org/03rp50x72","country_code":"ZA","type":"education","lineage":["https://openalex.org/I192619145"]}],"countries":["ZA"],"is_corresponding":false,"raw_author_name":"Olayinka Ogundile","raw_affiliation_strings":["School of Electrical & Information Engineering, University of the Witwatersrand, Johannesburg, South Africa"],"affiliations":[{"raw_affiliation_string":"School of Electrical & Information Engineering, University of the Witwatersrand, Johannesburg, South Africa","institution_ids":["https://openalex.org/I192619145"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5064718136","display_name":"Olutayo O. Oyerinde","orcid":"https://orcid.org/0000-0002-7827-5448"},"institutions":[{"id":"https://openalex.org/I192619145","display_name":"University of the Witwatersrand","ror":"https://ror.org/03rp50x72","country_code":"ZA","type":"education","lineage":["https://openalex.org/I192619145"]}],"countries":["ZA"],"is_corresponding":false,"raw_author_name":"Olutayo Oyerinde","raw_affiliation_strings":["School of Electrical & Information Engineering, University of the Witwatersrand, Johannesburg, South Africa"],"affiliations":[{"raw_affiliation_string":"School of Electrical & Information Engineering, University of the Witwatersrand, Johannesburg, South Africa","institution_ids":["https://openalex.org/I192619145"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5036589744","display_name":"D.J.J. Versfeld","orcid":"https://orcid.org/0000-0001-8327-2244"},"institutions":[{"id":"https://openalex.org/I26092322","display_name":"Stellenbosch University","ror":"https://ror.org/05bk57929","country_code":"ZA","type":"education","lineage":["https://openalex.org/I26092322"]}],"countries":["ZA"],"is_corresponding":false,"raw_author_name":"Jaco Versfeld","raw_affiliation_strings":["Department of Electrical and Electronic Engineering, Stellenbosch University, Matieland, South Africa"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Electronic Engineering, Stellenbosch University, Matieland, South Africa","institution_ids":["https://openalex.org/I26092322"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5014131135"],"corresponding_institution_ids":["https://openalex.org/I192619145"],"apc_list":null,"apc_paid":null,"fwci":0.2072,"has_fulltext":false,"cited_by_count":5,"citation_normalized_percentile":{"value":0.58591505,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":95},"biblio":{"volume":null,"issue":null,"first_page":"167","last_page":"170"},"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":0.9990000128746033,"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":0.9905999898910522,"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":0.8852403163909912},{"id":"https://openalex.org/keywords/generator-matrix","display_name":"Generator matrix","score":0.6647775173187256},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6520596742630005},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.6173803806304932},{"id":"https://openalex.org/keywords/parity-check-matrix","display_name":"Parity-check matrix","score":0.6108579635620117},{"id":"https://openalex.org/keywords/reduction","display_name":"Reduction (mathematics)","score":0.5974665880203247},{"id":"https://openalex.org/keywords/encoder","display_name":"Encoder","score":0.5685952305793762},{"id":"https://openalex.org/keywords/code-word","display_name":"Code word","score":0.522022545337677},{"id":"https://openalex.org/keywords/code","display_name":"Code (set theory)","score":0.4525810480117798},{"id":"https://openalex.org/keywords/turbo-code","display_name":"Turbo code","score":0.42314887046813965},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.37865519523620605},{"id":"https://openalex.org/keywords/decoding-methods","display_name":"Decoding methods","score":0.3522886037826538},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.24907764792442322}],"concepts":[{"id":"https://openalex.org/C67692717","wikidata":"https://www.wikidata.org/wiki/Q187444","display_name":"Low-density parity-check code","level":3,"score":0.8852403163909912},{"id":"https://openalex.org/C1842014","wikidata":"https://www.wikidata.org/wiki/Q1502046","display_name":"Generator matrix","level":3,"score":0.6647775173187256},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6520596742630005},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.6173803806304932},{"id":"https://openalex.org/C95925971","wikidata":"https://www.wikidata.org/wiki/Q3100414","display_name":"Parity-check matrix","level":4,"score":0.6108579635620117},{"id":"https://openalex.org/C111335779","wikidata":"https://www.wikidata.org/wiki/Q3454686","display_name":"Reduction (mathematics)","level":2,"score":0.5974665880203247},{"id":"https://openalex.org/C118505674","wikidata":"https://www.wikidata.org/wiki/Q42586063","display_name":"Encoder","level":2,"score":0.5685952305793762},{"id":"https://openalex.org/C153207627","wikidata":"https://www.wikidata.org/wiki/Q863873","display_name":"Code word","level":3,"score":0.522022545337677},{"id":"https://openalex.org/C2776760102","wikidata":"https://www.wikidata.org/wiki/Q5139990","display_name":"Code (set theory)","level":3,"score":0.4525810480117798},{"id":"https://openalex.org/C114504821","wikidata":"https://www.wikidata.org/wiki/Q2164281","display_name":"Turbo code","level":3,"score":0.42314887046813965},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.37865519523620605},{"id":"https://openalex.org/C57273362","wikidata":"https://www.wikidata.org/wiki/Q576722","display_name":"Decoding methods","level":2,"score":0.3522886037826538},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.24907764792442322},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.0},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/afrcon.2017.8095475","is_oa":false,"landing_page_url":"https://doi.org/10.1109/afrcon.2017.8095475","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2017 IEEE AFRICON","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":16,"referenced_works":["https://openalex.org/W628021441","https://openalex.org/W821768790","https://openalex.org/W2006738967","https://openalex.org/W2012354853","https://openalex.org/W2073843305","https://openalex.org/W2099244604","https://openalex.org/W2113420173","https://openalex.org/W2119281626","https://openalex.org/W2128765501","https://openalex.org/W2133068391","https://openalex.org/W2147776616","https://openalex.org/W2156938362","https://openalex.org/W2164601298","https://openalex.org/W2173776306","https://openalex.org/W2297433544","https://openalex.org/W6623215464"],"related_works":["https://openalex.org/W2479327835","https://openalex.org/W2169710030","https://openalex.org/W2537963609","https://openalex.org/W2126543779","https://openalex.org/W2279940065","https://openalex.org/W2282053458","https://openalex.org/W2090897912","https://openalex.org/W3012554690","https://openalex.org/W2968415127","https://openalex.org/W4205411573"],"abstract_inverted_index":{"For":[0],"practical":[1],"applications":[2],"in":[3],"forward":[4],"error":[5],"correction,":[6],"the":[7,20,41,51,71,76,79,91,94,99],"importance":[8],"of":[9,22,53,78,93],"a":[10,23,35,86,103],"systematic":[11,24,30],"codeword":[12],"cannot":[13],"be":[14],"overemphasized.":[15],"Thus,":[16],"this":[17],"paper":[18],"proposes":[19],"construction":[21,92,101],"quasi-cyclic":[25],"(QC)":[26],"LDPC":[27],"code.":[28],"This":[29,46],"structure":[31,74],"is":[32],"achieved":[33],"by":[34],"row":[36,47,62,67],"reduction":[37,48,63,68],"technique":[38,49,69],"different":[39],"from":[40],"conventional":[42],"Gaussian":[43,61],"elimination":[44],"method.":[45],"has":[50],"advantage":[52],"being":[54],"easier":[55],"to":[56,60,90],"implement":[57],"when":[58],"compared":[59],"techniques.":[64],"The":[65],"proposed":[66,100],"maintains":[70],"quasi":[72],"cyclic":[73],"and":[75],"sparsity":[77],"QC-LDPC":[80],"parity":[81],"check":[82],"matrix":[83],"while":[84],"providing":[85],"low":[87],"complexity":[88],"approach":[89],"generator":[95],"matrix.":[96],"In":[97],"addition,":[98],"exhibits":[102],"good":[104],"BER":[105],"performance":[106],"for":[107],"high":[108],"rate":[109],"codes.":[110]},"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}