{"id":"https://openalex.org/W1532809503","doi":"https://doi.org/10.1109/pimrc.2002.1045443","title":"Soft orthogonal phase shift keying (SOPK) modulation with OVSF-MAC for UMTS","display_name":"Soft orthogonal phase shift keying (SOPK) modulation with OVSF-MAC for UMTS","publication_year":2003,"publication_date":"2003-08-27","ids":{"openalex":"https://openalex.org/W1532809503","doi":"https://doi.org/10.1109/pimrc.2002.1045443","mag":"1532809503"},"language":"en","primary_location":{"id":"doi:10.1109/pimrc.2002.1045443","is_oa":false,"landing_page_url":"https://doi.org/10.1109/pimrc.2002.1045443","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The 13th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications","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/A5066129698","display_name":"J. S. Pereira","orcid":"https://orcid.org/0000-0002-4303-2876"},"institutions":[{"id":"https://openalex.org/I3133160195","display_name":"Instituto Superior de Gest\u00e3o","ror":"https://ror.org/05mnej980","country_code":"PT","type":"education","lineage":["https://openalex.org/I3133160195"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"J. da Silva Pereira","raw_affiliation_strings":["Departamento de Engenharia Inform\u00e1tica, Escola Superior de Tecnologia e Gest\u00e3o, Leiria, Portugal"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Departamento de Engenharia Inform\u00e1tica, Escola Superior de Tecnologia e Gest\u00e3o, Leiria, Portugal","institution_ids":["https://openalex.org/I3133160195"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100674067","display_name":"Henrique Silva","orcid":"https://orcid.org/0000-0003-2866-2746"},"institutions":[{"id":"https://openalex.org/I4210120471","display_name":"Instituto de Telecomunica\u00e7\u00f5es","ror":"https://ror.org/02ht4fk33","country_code":"PT","type":"nonprofit","lineage":["https://openalex.org/I4210120471"]},{"id":"https://openalex.org/I76903346","display_name":"University of Coimbra","ror":"https://ror.org/04z8k9a98","country_code":"PT","type":"education","lineage":["https://openalex.org/I76903346"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"H.J. Almeida da Silva","raw_affiliation_strings":["Instituto de Telecomuni\u00e7\u00f5es, Universidade de Coimbra Polo II, Coimbra, Portugal"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Instituto de Telecomuni\u00e7\u00f5es, Universidade de Coimbra Polo II, Coimbra, Portugal","institution_ids":["https://openalex.org/I4210120471","https://openalex.org/I76903346"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.04742137,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"4","issue":null,"first_page":"1572","last_page":"1576"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10125","display_name":"Advanced Wireless Communication Techniques","score":0.9987000226974487,"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/T10125","display_name":"Advanced Wireless Communication Techniques","score":0.9987000226974487,"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/T10575","display_name":"Wireless Communication Networks Research","score":0.9934999942779541,"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/T11392","display_name":"Energy Harvesting in Wireless Networks","score":0.9879999756813049,"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/phase-shift-keying","display_name":"Phase-shift keying","score":0.7950087189674377},{"id":"https://openalex.org/keywords/umts-frequency-bands","display_name":"UMTS frequency bands","score":0.6773500442504883},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6374567151069641},{"id":"https://openalex.org/keywords/bit-error-rate","display_name":"Bit error rate","score":0.5972555875778198},{"id":"https://openalex.org/keywords/modulation","display_name":"Modulation (music)","score":0.5891580581665039},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.5760853290557861},{"id":"https://openalex.org/keywords/minimum-shift-keying","display_name":"Minimum-shift keying","score":0.5688399076461792},{"id":"https://openalex.org/keywords/quadrature-amplitude-modulation","display_name":"Quadrature amplitude modulation","score":0.47976359724998474},{"id":"https://openalex.org/keywords/continuous-phase-modulation","display_name":"Continuous phase modulation","score":0.4212872087955475},{"id":"https://openalex.org/keywords/keying","display_name":"Keying","score":0.4164920747280121},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.41106492280960083},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.41022735834121704},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.4010297358036041},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.33617910742759705},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.15679383277893066},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.15623119473457336}],"concepts":[{"id":"https://openalex.org/C186378180","wikidata":"https://www.wikidata.org/wiki/Q4874866","display_name":"Phase-shift keying","level":4,"score":0.7950087189674377},{"id":"https://openalex.org/C101618186","wikidata":"https://www.wikidata.org/wiki/Q3633928","display_name":"UMTS frequency bands","level":2,"score":0.6773500442504883},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6374567151069641},{"id":"https://openalex.org/C56296756","wikidata":"https://www.wikidata.org/wiki/Q840922","display_name":"Bit error rate","level":3,"score":0.5972555875778198},{"id":"https://openalex.org/C123079801","wikidata":"https://www.wikidata.org/wiki/Q750240","display_name":"Modulation (music)","level":2,"score":0.5891580581665039},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.5760853290557861},{"id":"https://openalex.org/C55857970","wikidata":"https://www.wikidata.org/wiki/Q4156818","display_name":"Minimum-shift keying","level":5,"score":0.5688399076461792},{"id":"https://openalex.org/C32409245","wikidata":"https://www.wikidata.org/wiki/Q749753","display_name":"Quadrature amplitude modulation","level":4,"score":0.47976359724998474},{"id":"https://openalex.org/C343090","wikidata":"https://www.wikidata.org/wiki/Q5165504","display_name":"Continuous phase modulation","level":2,"score":0.4212872087955475},{"id":"https://openalex.org/C2776542216","wikidata":"https://www.wikidata.org/wiki/Q6398306","display_name":"Keying","level":2,"score":0.4164920747280121},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.41106492280960083},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.41022735834121704},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.4010297358036041},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.33617910742759705},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.15679383277893066},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.15623119473457336},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/pimrc.2002.1045443","is_oa":false,"landing_page_url":"https://doi.org/10.1109/pimrc.2002.1045443","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The 13th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":7,"referenced_works":["https://openalex.org/W52918216","https://openalex.org/W123603329","https://openalex.org/W1967267438","https://openalex.org/W1983425587","https://openalex.org/W1984386576","https://openalex.org/W2145354815","https://openalex.org/W2187171457"],"related_works":["https://openalex.org/W1644162651","https://openalex.org/W2548484459","https://openalex.org/W2027117786","https://openalex.org/W2035739394","https://openalex.org/W2063895299","https://openalex.org/W2113661990","https://openalex.org/W2017769333","https://openalex.org/W2136954438","https://openalex.org/W2052143987","https://openalex.org/W2026715077"],"abstract_inverted_index":{"Various":[0],"digital":[1],"modulation":[2,25,41,59,67,76],"techniques":[3],"have":[4,9],"been":[5],"extensively":[6],"studied":[7],"and":[8,50],"found":[10],"numerous":[11],"applications":[12],"in":[13,27,93],"wireless":[14],"communication":[15],"systems.":[16],"One":[17],"example":[18],"of":[19],"this":[20,65],"success":[21],"is":[22,77],"the":[23,28,57,90,94],"QPSK":[24,58],"used":[26],"third":[29],"generation":[30],"Universal":[31],"Mobile":[32],"Telecommunication":[33],"System":[34],"(UMTS).":[35],"This":[36,75],"paper":[37],"presents":[38],"a":[39,80],"new":[40,66,81],"method":[42,83],"that":[43,85],"produces":[44],"less":[45],"adjacent":[46],"channel":[47],"interference":[48],"(ACI)":[49],"lower":[51],"bit":[52],"error":[53],"rate":[54],"(BER)":[55],"than":[56],"with":[60],"linear":[61],"amplification.":[62],"We":[63],"call":[64],"technique":[68],"Soft":[69],"Orthogonal":[70],"Phase":[71],"shift":[72],"Keying":[73],"(SOPK).":[74],"perfect":[78],"for":[79],"coding":[82],"OVSF-MAC":[84],"can":[86],"at":[87],"least":[88],"duplicate":[89],"binary":[91],"throughput":[92],"UMTS":[95],"down":[96],"link":[97],"channel.":[98]},"counts_by_year":[],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}
