{"id":"https://openalex.org/W1988108191","doi":"https://doi.org/10.1007/s10623-008-9257-8","title":"Gold codes, Hadamard partitions and the security of CDMA systems","display_name":"Gold codes, Hadamard partitions and the security of CDMA systems","publication_year":2008,"publication_date":"2008-12-18","ids":{"openalex":"https://openalex.org/W1988108191","doi":"https://doi.org/10.1007/s10623-008-9257-8","mag":"1988108191"},"language":"en","primary_location":{"id":"doi:10.1007/s10623-008-9257-8","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s10623-008-9257-8","pdf_url":null,"source":{"id":"https://openalex.org/S81616010","display_name":"Designs Codes and Cryptography","issn_l":"0925-1022","issn":["0925-1022","1573-7586"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319965","host_organization_name":"Springer Nature","host_organization_lineage":["https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Designs, Codes and Cryptography","raw_type":"journal-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/A5064976367","display_name":"Derek H. Smith","orcid":"https://orcid.org/0000-0002-8128-2067"},"institutions":[{"id":"https://openalex.org/I128993996","display_name":"University of South Wales","ror":"https://ror.org/02mzn7s88","country_code":"GB","type":"education","lineage":["https://openalex.org/I128993996"]}],"countries":["GB"],"is_corresponding":true,"raw_author_name":"Derek H. Smith","raw_affiliation_strings":["Division of Mathematics and Statistics, University of Glamorgan, Pontypridd, CF37 1DL, Wales, UK","Division of Mathematics and Statistics, University of Glamorgan, Pontypridd, UK CF37 1DL#TAB#"],"affiliations":[{"raw_affiliation_string":"Division of Mathematics and Statistics, University of Glamorgan, Pontypridd, CF37 1DL, Wales, UK","institution_ids":["https://openalex.org/I128993996"]},{"raw_affiliation_string":"Division of Mathematics and Statistics, University of Glamorgan, Pontypridd, UK CF37 1DL#TAB#","institution_ids":["https://openalex.org/I128993996"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5102058807","display_name":"Richard Ward","orcid":null},"institutions":[{"id":"https://openalex.org/I128993996","display_name":"University of South Wales","ror":"https://ror.org/02mzn7s88","country_code":"GB","type":"education","lineage":["https://openalex.org/I128993996"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Richard P. Ward","raw_affiliation_strings":["Division of Mathematics and Statistics, University of Glamorgan, Pontypridd, CF37 1DL, Wales, UK","Division of Mathematics and Statistics, University of Glamorgan, Pontypridd, UK CF37 1DL#TAB#"],"affiliations":[{"raw_affiliation_string":"Division of Mathematics and Statistics, University of Glamorgan, Pontypridd, CF37 1DL, Wales, UK","institution_ids":["https://openalex.org/I128993996"]},{"raw_affiliation_string":"Division of Mathematics and Statistics, University of Glamorgan, Pontypridd, UK CF37 1DL#TAB#","institution_ids":["https://openalex.org/I128993996"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5064124520","display_name":"Stephanie Perkins","orcid":"https://orcid.org/0000-0002-6292-8731"},"institutions":[{"id":"https://openalex.org/I128993996","display_name":"University of South Wales","ror":"https://ror.org/02mzn7s88","country_code":"GB","type":"education","lineage":["https://openalex.org/I128993996"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Stephanie Perkins","raw_affiliation_strings":["Division of Mathematics and Statistics, University of Glamorgan, Pontypridd, CF37 1DL, Wales, UK","Division of Mathematics and Statistics, University of Glamorgan, Pontypridd, UK CF37 1DL#TAB#"],"affiliations":[{"raw_affiliation_string":"Division of Mathematics and Statistics, University of Glamorgan, Pontypridd, CF37 1DL, Wales, UK","institution_ids":["https://openalex.org/I128993996"]},{"raw_affiliation_string":"Division of Mathematics and Statistics, University of Glamorgan, Pontypridd, UK CF37 1DL#TAB#","institution_ids":["https://openalex.org/I128993996"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5064976367"],"corresponding_institution_ids":["https://openalex.org/I128993996"],"apc_list":{"value":2290,"currency":"EUR","value_usd":2890},"apc_paid":null,"fwci":0.3382,"has_fulltext":false,"cited_by_count":12,"citation_normalized_percentile":{"value":0.61945639,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":"51","issue":"3","first_page":"231","last_page":"243"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11797","display_name":"graph theory and CDMA systems","score":0.9998999834060669,"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"}},"topics":[{"id":"https://openalex.org/T11797","display_name":"graph theory and CDMA systems","score":0.9998999834060669,"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/T11130","display_name":"Coding theory and cryptography","score":0.9995999932289124,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"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/T10575","display_name":"Wireless Communication Networks Research","score":0.998199999332428,"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/hadamard-transform","display_name":"Hadamard transform","score":0.7064319849014282},{"id":"https://openalex.org/keywords/hadamard-code","display_name":"Hadamard code","score":0.5922767519950867},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.5870729684829712},{"id":"https://openalex.org/keywords/hadamard-matrix","display_name":"Hadamard matrix","score":0.5681724548339844},{"id":"https://openalex.org/keywords/partition","display_name":"Partition (number theory)","score":0.5212962627410889},{"id":"https://openalex.org/keywords/complex-hadamard-matrix","display_name":"Complex Hadamard matrix","score":0.49323219060897827},{"id":"https://openalex.org/keywords/hadamards-inequality","display_name":"Hadamard's inequality","score":0.4884418547153473},{"id":"https://openalex.org/keywords/hadamard-product","display_name":"Hadamard product","score":0.462046355009079},{"id":"https://openalex.org/keywords/bounded-function","display_name":"Bounded function","score":0.44844043254852295},{"id":"https://openalex.org/keywords/code","display_name":"Code (set theory)","score":0.4410463571548462},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.34947875142097473},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.3262370526790619},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.32471975684165955},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.31246423721313477}],"concepts":[{"id":"https://openalex.org/C60292330","wikidata":"https://www.wikidata.org/wiki/Q1014065","display_name":"Hadamard transform","level":2,"score":0.7064319849014282},{"id":"https://openalex.org/C26693338","wikidata":"https://www.wikidata.org/wiki/Q1567339","display_name":"Hadamard code","level":3,"score":0.5922767519950867},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.5870729684829712},{"id":"https://openalex.org/C30463267","wikidata":"https://www.wikidata.org/wiki/Q1422682","display_name":"Hadamard matrix","level":3,"score":0.5681724548339844},{"id":"https://openalex.org/C42812","wikidata":"https://www.wikidata.org/wiki/Q1082910","display_name":"Partition (number theory)","level":2,"score":0.5212962627410889},{"id":"https://openalex.org/C6497535","wikidata":"https://www.wikidata.org/wiki/Q5156556","display_name":"Complex Hadamard matrix","level":4,"score":0.49323219060897827},{"id":"https://openalex.org/C31021346","wikidata":"https://www.wikidata.org/wiki/Q1365087","display_name":"Hadamard's inequality","level":4,"score":0.4884418547153473},{"id":"https://openalex.org/C90230998","wikidata":"https://www.wikidata.org/wiki/Q3406746","display_name":"Hadamard product","level":3,"score":0.462046355009079},{"id":"https://openalex.org/C34388435","wikidata":"https://www.wikidata.org/wiki/Q2267362","display_name":"Bounded function","level":2,"score":0.44844043254852295},{"id":"https://openalex.org/C2776760102","wikidata":"https://www.wikidata.org/wiki/Q5139990","display_name":"Code (set theory)","level":3,"score":0.4410463571548462},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.34947875142097473},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.3262370526790619},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.32471975684165955},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.31246423721313477},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","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:10.1007/s10623-008-9257-8","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s10623-008-9257-8","pdf_url":null,"source":{"id":"https://openalex.org/S81616010","display_name":"Designs Codes and Cryptography","issn_l":"0925-1022","issn":["0925-1022","1573-7586"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319965","host_organization_name":"Springer Nature","host_organization_lineage":["https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Designs, Codes and Cryptography","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Decent work and economic growth","score":0.4000000059604645,"id":"https://metadata.un.org/sdg/8"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320334627","display_name":"Engineering and Physical Sciences Research Council","ror":"https://ror.org/0439y7842"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":9,"referenced_works":["https://openalex.org/W1606480398","https://openalex.org/W1808050642","https://openalex.org/W2024674802","https://openalex.org/W2047785219","https://openalex.org/W2067096554","https://openalex.org/W2138068001","https://openalex.org/W2159338674","https://openalex.org/W2889867763","https://openalex.org/W4300568384"],"related_works":["https://openalex.org/W2138472192","https://openalex.org/W2790370651","https://openalex.org/W2124522323","https://openalex.org/W2116325477","https://openalex.org/W2084599657","https://openalex.org/W2010617738","https://openalex.org/W1507795568","https://openalex.org/W2551746628","https://openalex.org/W2101602579","https://openalex.org/W3103130602"],"abstract_inverted_index":null,"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":3},{"year":2019,"cited_by_count":2},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":1},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
