{"id":"https://openalex.org/W2119876353","doi":"https://doi.org/10.1109/itw.2003.1216754","title":"Low density parity check matrices for coding of multiple access networks","display_name":"Low density parity check matrices for coding of multiple access networks","publication_year":2004,"publication_date":"2004-03-02","ids":{"openalex":"https://openalex.org/W2119876353","doi":"https://doi.org/10.1109/itw.2003.1216754","mag":"2119876353"},"language":"en","primary_location":{"id":"doi:10.1109/itw.2003.1216754","is_oa":false,"landing_page_url":"https://doi.org/10.1109/itw.2003.1216754","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings 2003 IEEE Information Theory Workshop (Cat. No.03EX674)","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/A5007060371","display_name":"Jun Muramatsu","orcid":"https://orcid.org/0000-0001-5016-5717"},"institutions":[{"id":"https://openalex.org/I2251713219","display_name":"NTT (Japan)","ror":"https://ror.org/00berct97","country_code":"JP","type":"company","lineage":["https://openalex.org/I2251713219"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"J. Muramatsu","raw_affiliation_strings":["NTT Communication Science Laboratories., NTT Corporation, Soraku-gun, Kyoto, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"NTT Communication Science Laboratories., NTT Corporation, Soraku-gun, Kyoto, Japan","institution_ids":["https://openalex.org/I2251713219"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5077493107","display_name":"Tomohiko Uyematsu","orcid":"https://orcid.org/0000-0002-9876-6789"},"institutions":[{"id":"https://openalex.org/I114531698","display_name":"Tokyo Institute of Technology","ror":"https://ror.org/0112mx960","country_code":"JP","type":"education","lineage":["https://openalex.org/I114531698"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"T. Uyematsu","raw_affiliation_strings":["Tokyo Institute of Technology, Meguro, Tokyo, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Tokyo Institute of Technology, Meguro, Tokyo, Japan","institution_ids":["https://openalex.org/I114531698"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5049268989","display_name":"Tadashi Wadayama","orcid":null},"institutions":[{"id":"https://openalex.org/I193620225","display_name":"Okayama Prefectural University","ror":"https://ror.org/038bgk418","country_code":"JP","type":"education","lineage":["https://openalex.org/I193620225"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"T. Wadayama","raw_affiliation_strings":["Okayama Prefectural University, Soja, Okayama, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Okayama Prefectural University, Soja, Okayama, Japan","institution_ids":["https://openalex.org/I193620225"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":{"value":0.18939604,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":"e78 a","issue":null,"first_page":"304","last_page":"307"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10796","display_name":"Cooperative Communication and Network Coding","score":0.9998999834060669,"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/T10796","display_name":"Cooperative Communication and Network Coding","score":0.9998999834060669,"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/T11321","display_name":"Error Correcting Code Techniques","score":0.9998999834060669,"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/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.9991000294685364,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/low-density-parity-check-code","display_name":"Low-density parity-check code","score":0.8050153255462646},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6319987177848816},{"id":"https://openalex.org/keywords/coding","display_name":"Coding (social sciences)","score":0.5705245733261108},{"id":"https://openalex.org/keywords/parity","display_name":"Parity (physics)","score":0.5344281196594238},{"id":"https://openalex.org/keywords/parity-check-matrix","display_name":"Parity-check matrix","score":0.5201133489608765},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.5052319169044495},{"id":"https://openalex.org/keywords/construct","display_name":"Construct (python library)","score":0.43953847885131836},{"id":"https://openalex.org/keywords/linear-network-coding","display_name":"Linear network coding","score":0.4125867784023285},{"id":"https://openalex.org/keywords/decoding-methods","display_name":"Decoding methods","score":0.3863421380519867},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.37327414751052856},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3315345048904419},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.165749192237854},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.1324860155582428}],"concepts":[{"id":"https://openalex.org/C67692717","wikidata":"https://www.wikidata.org/wiki/Q187444","display_name":"Low-density parity-check code","level":3,"score":0.8050153255462646},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6319987177848816},{"id":"https://openalex.org/C179518139","wikidata":"https://www.wikidata.org/wiki/Q5140297","display_name":"Coding (social sciences)","level":2,"score":0.5705245733261108},{"id":"https://openalex.org/C2777151079","wikidata":"https://www.wikidata.org/wiki/Q141160","display_name":"Parity (physics)","level":2,"score":0.5344281196594238},{"id":"https://openalex.org/C95925971","wikidata":"https://www.wikidata.org/wiki/Q3100414","display_name":"Parity-check matrix","level":4,"score":0.5201133489608765},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.5052319169044495},{"id":"https://openalex.org/C2780801425","wikidata":"https://www.wikidata.org/wiki/Q5164392","display_name":"Construct (python library)","level":2,"score":0.43953847885131836},{"id":"https://openalex.org/C138293262","wikidata":"https://www.wikidata.org/wiki/Q1089578","display_name":"Linear network coding","level":3,"score":0.4125867784023285},{"id":"https://openalex.org/C57273362","wikidata":"https://www.wikidata.org/wiki/Q576722","display_name":"Decoding methods","level":2,"score":0.3863421380519867},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.37327414751052856},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3315345048904419},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.165749192237854},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.1324860155582428},{"id":"https://openalex.org/C109214941","wikidata":"https://www.wikidata.org/wiki/Q18334","display_name":"Particle physics","level":1,"score":0.0},{"id":"https://openalex.org/C158379750","wikidata":"https://www.wikidata.org/wiki/Q214111","display_name":"Network packet","level":2,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/itw.2003.1216754","is_oa":false,"landing_page_url":"https://doi.org/10.1109/itw.2003.1216754","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings 2003 IEEE Information Theory Workshop (Cat. No.03EX674)","raw_type":"proceedings-article"},{"id":"pmh:oai:t2r2.star.titech.ac.jp:00097452","is_oa":false,"landing_page_url":"http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100491992","pdf_url":null,"source":{"id":"https://openalex.org/S4377196385","display_name":"Tokyo Tech Research Repository (Tokyo Institute of Technology)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I114531698","host_organization_name":"Tokyo Institute of Technology","host_organization_lineage":["https://openalex.org/I114531698"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Journal Article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":18,"referenced_works":["https://openalex.org/W1496328033","https://openalex.org/W2088214533","https://openalex.org/W2088587246","https://openalex.org/W2095817220","https://openalex.org/W2099213070","https://openalex.org/W2114449874","https://openalex.org/W2128765501","https://openalex.org/W2135764410","https://openalex.org/W2142971133","https://openalex.org/W2155676967","https://openalex.org/W2162388654","https://openalex.org/W2162635854","https://openalex.org/W2180357386","https://openalex.org/W2206295654","https://openalex.org/W4254911724","https://openalex.org/W6629816883","https://openalex.org/W6674447305","https://openalex.org/W6685806021"],"related_works":["https://openalex.org/W2537963609","https://openalex.org/W2030775967","https://openalex.org/W2092857423","https://openalex.org/W2775568945","https://openalex.org/W2361792238","https://openalex.org/W2111960289","https://openalex.org/W2182725540","https://openalex.org/W3126598192","https://openalex.org/W2122913048","https://openalex.org/W2090897912"],"abstract_inverted_index":{"The":[0],"paper":[1],"considers":[2],"linear":[3],"matrices":[4],"for":[5,9],"a":[6],"coding":[7],"problem":[8],"multiple":[10],"access":[11],"networks.":[12],"It":[13],"is":[14],"proved":[15],"that":[16],"we":[17],"can":[18],"construct":[19],"codes":[20],"by":[21],"using":[22],"sparse":[23],"matrices,":[24],"which":[25],"are":[26],"also":[27],"called":[28],"low":[29],"density":[30],"parity":[31],"check":[32],"(LDPC)":[33],"matrices.":[34]},"counts_by_year":[{"year":2012,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}