{"id":"https://openalex.org/W2120765143","doi":"https://doi.org/10.1109/tit.2004.834783","title":"Optimal Frequency Hopping Sequences: A Combinatorial Approach","display_name":"Optimal Frequency Hopping Sequences: A Combinatorial Approach","publication_year":2004,"publication_date":"2004-09-28","ids":{"openalex":"https://openalex.org/W2120765143","doi":"https://doi.org/10.1109/tit.2004.834783","mag":"2120765143"},"language":"en","primary_location":{"is_oa":false,"landing_page_url":"https://doi.org/10.1109/tit.2004.834783","pdf_url":null,"source":{"id":"https://openalex.org/S4502562","display_name":"IEEE Transactions on Information Theory","issn_l":"0018-9448","issn":["0018-9448","1557-9654"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false},"type":"article","type_crossref":"journal-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/A5062549364","display_name":"Ryoh Fuji-Hara","orcid":null},"institutions":[{"id":"https://openalex.org/I146399215","display_name":"University of Tsukuba","ror":"https://ror.org/02956yf07","country_code":"JP","type":"education","lineage":["https://openalex.org/I146399215"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"R. Fuji-Hara","raw_affiliation_strings":["Graduate Sch. of Syst. & Inf. Eng., Univ. of Tsukuba, Japan#TAB#"],"affiliations":[{"raw_affiliation_string":"Graduate Sch. of Syst. & Inf. Eng., Univ. of Tsukuba, Japan#TAB#","institution_ids":["https://openalex.org/I146399215"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5000790951","display_name":"Ying Miao","orcid":"https://orcid.org/0000-0002-9086-8668"},"institutions":[{"id":"https://openalex.org/I146399215","display_name":"University of Tsukuba","ror":"https://ror.org/02956yf07","country_code":"JP","type":"education","lineage":["https://openalex.org/I146399215"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Y. Miao","raw_affiliation_strings":["Graduate Sch. of Syst. & Inf. Eng., Univ. of Tsukuba, Japan#TAB#"],"affiliations":[{"raw_affiliation_string":"Graduate Sch. of Syst. & Inf. Eng., Univ. of Tsukuba, Japan#TAB#","institution_ids":["https://openalex.org/I146399215"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5089017605","display_name":"Miwako Mishima","orcid":null},"institutions":[{"id":"https://openalex.org/I42405503","display_name":"Gifu University","ror":"https://ror.org/024exxj48","country_code":"JP","type":"education","lineage":["https://openalex.org/I42405503"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"M. Mishima","raw_affiliation_strings":["[Information and Multimedia Center, Gifu University, Gifu, Japan]"],"affiliations":[{"raw_affiliation_string":"[Information and Multimedia Center, Gifu University, Gifu, Japan]","institution_ids":["https://openalex.org/I42405503"]}]}],"institution_assertions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":2.017,"has_fulltext":true,"fulltext_origin":"ngrams","cited_by_count":120,"citation_normalized_percentile":{"value":0.974663,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":97,"max":98},"biblio":{"volume":"50","issue":"10","first_page":"2408","last_page":"2420"},"is_retracted":false,"is_paratext":false,"primary_topic":{"id":"https://openalex.org/T11797","display_name":"graph theory and CDMA systems","score":0.9998,"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":0.9998,"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":0.9998,"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":0.9993,"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/frequency-hopping-spread-spectrum","display_name":"Frequency-hopping spread spectrum","score":0.88686264},{"id":"https://openalex.org/keywords/frequency-shift-keying","display_name":"Frequency-shift keying","score":0.6751533},{"id":"https://openalex.org/keywords/combinatorial-method","display_name":"Combinatorial method","score":0.46901482},{"id":"https://openalex.org/keywords/modulation","display_name":"Modulation (music)","score":0.4679526},{"id":"https://openalex.org/keywords/sequence","display_name":"Sequence (biology)","score":0.45191863}],"concepts":[{"id":"https://openalex.org/C122962297","wikidata":"https://www.wikidata.org/wiki/Q1136013","display_name":"Frequency-hopping spread spectrum","level":2,"score":0.88686264},{"id":"https://openalex.org/C163996819","wikidata":"https://www.wikidata.org/wiki/Q1166054","display_name":"Frequency-shift keying","level":4,"score":0.6751533},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.5824024},{"id":"https://openalex.org/C105344744","wikidata":"https://www.wikidata.org/wiki/Q958957","display_name":"Spread spectrum","level":3,"score":0.49675757},{"id":"https://openalex.org/C42812","wikidata":"https://www.wikidata.org/wiki/Q1082910","display_name":"Partition (number theory)","level":2,"score":0.47247526},{"id":"https://openalex.org/C2779521423","wikidata":"https://www.wikidata.org/wiki/Q3855646","display_name":"Combinatorial method","level":2,"score":0.46901482},{"id":"https://openalex.org/C123079801","wikidata":"https://www.wikidata.org/wiki/Q750240","display_name":"Modulation (music)","level":2,"score":0.4679526},{"id":"https://openalex.org/C2778112365","wikidata":"https://www.wikidata.org/wiki/Q3511065","display_name":"Sequence (biology)","level":2,"score":0.45191863},{"id":"https://openalex.org/C2776542216","wikidata":"https://www.wikidata.org/wiki/Q6398306","display_name":"Keying","level":2,"score":0.42962053},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.41679665},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.34137234},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.3345576},{"id":"https://openalex.org/C184720557","wikidata":"https://www.wikidata.org/wiki/Q7825049","display_name":"Topology (electrical circuits)","level":2,"score":0.33427423},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.2795899},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.2555243},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.07566485},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.0},{"id":"https://openalex.org/C195251586","wikidata":"https://www.wikidata.org/wiki/Q1185939","display_name":"Demodulation","level":3,"score":0.0},{"id":"https://openalex.org/C54355233","wikidata":"https://www.wikidata.org/wiki/Q7162","display_name":"Genetics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"is_oa":false,"landing_page_url":"https://doi.org/10.1109/tit.2004.834783","pdf_url":null,"source":{"id":"https://openalex.org/S4502562","display_name":"IEEE Transactions on Information Theory","issn_l":"0018-9448","issn":["0018-9448","1557-9654"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false}],"best_oa_location":null,"sustainable_development_goals":[],"grants":[],"datasets":[],"versions":[],"referenced_works_count":32,"referenced_works":["https://openalex.org/W1422065010","https://openalex.org/W1545693521","https://openalex.org/W1569879151","https://openalex.org/W177165335","https://openalex.org/W1965142549","https://openalex.org/W1971033775","https://openalex.org/W1973227439","https://openalex.org/W1976007236","https://openalex.org/W2003994248","https://openalex.org/W2006458041","https://openalex.org/W2017682225","https://openalex.org/W2024130166","https://openalex.org/W2033844300","https://openalex.org/W2043682849","https://openalex.org/W2045038939","https://openalex.org/W2047100175","https://openalex.org/W2060831193","https://openalex.org/W2060909500","https://openalex.org/W2068245410","https://openalex.org/W2078626609","https://openalex.org/W2088193630","https://openalex.org/W2093728854","https://openalex.org/W2112846031","https://openalex.org/W2143587067","https://openalex.org/W2147883795","https://openalex.org/W2160616122","https://openalex.org/W2171297434","https://openalex.org/W2208059987","https://openalex.org/W2480234826","https://openalex.org/W24985204","https://openalex.org/W2611298788","https://openalex.org/W4254866411"],"related_works":["https://openalex.org/W854026276","https://openalex.org/W2542002834","https://openalex.org/W2377601335","https://openalex.org/W2304504342","https://openalex.org/W2265199195","https://openalex.org/W2160808756","https://openalex.org/W2130370437","https://openalex.org/W2071004001","https://openalex.org/W2033038403","https://openalex.org/W1608975172"],"abstract_inverted_index":{"Frequency":[0],"hopping":[1,28],"multiple":[2,9],"access":[3],"(FHMA)":[4],"spread-spectrum":[5],"communication":[6,95],"systems":[7,44],"employing":[8],"frequency-shift":[10],"keying":[11],"(MFSK)":[12],"as":[13,59],"data":[14],"modulation":[15],"technique":[16],"are":[17,52,70,81,88],"investigated":[18],"from":[19,54],"a":[20,46],"combinatorial":[21,56],"approach.":[22],"A":[23],"correspondence":[24],"between":[25],"optimal":[26,48,78],"frequency":[27],"(FH)":[29],"sequences":[30,80,87],"and":[31,64],"partition-type":[32],"difference":[33,65],"packings":[34],"is":[35],"first":[36],"established.":[37],"By":[38],"virtue":[39],"of":[40,77],"this":[41],"correspondence,":[42],"FHMA":[43],"with":[45],"single":[47],"FH":[49,79,86],"sequence":[50],"each":[51],"constructed":[53],"various":[55],"structures":[57],"such":[58],"affine":[60],"geometries,":[61],"cyclic":[62],"designs,":[63],"families.":[66],"Combinatorial":[67],"recursive":[68],"constructions":[69],"also":[71,89],"presented.":[72],"Many":[73],"new":[74,85],"infinite":[75],"series":[76],"thus":[82],"obtained.":[83],"These":[84],"useful":[90],"in":[91],"ultra":[92],"wideband":[93],"(UWB)":[94],"systems.":[96]},"cited_by_api_url":"https://api.openalex.org/works?filter=cites:W2120765143","counts_by_year":[{"year":2024,"cited_by_count":3},{"year":2023,"cited_by_count":4},{"year":2022,"cited_by_count":4},{"year":2021,"cited_by_count":4},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":8},{"year":2018,"cited_by_count":5},{"year":2017,"cited_by_count":6},{"year":2016,"cited_by_count":10},{"year":2015,"cited_by_count":8},{"year":2014,"cited_by_count":7},{"year":2013,"cited_by_count":10},{"year":2012,"cited_by_count":8}],"updated_date":"2025-01-02T19:43:10.494345","created_date":"2016-06-24"}