{"id":"https://openalex.org/W2157689036","doi":"https://doi.org/10.1109/glocom.2005.1577913","title":"Block phase precoding for blind multiuser detection in QPSK/DS-CDMA systems","display_name":"Block phase precoding for blind multiuser detection in QPSK/DS-CDMA systems","publication_year":2005,"publication_date":"2005-01-01","ids":{"openalex":"https://openalex.org/W2157689036","doi":"https://doi.org/10.1109/glocom.2005.1577913","mag":"2157689036"},"language":"en","primary_location":{"id":"doi:10.1109/glocom.2005.1577913","is_oa":false,"landing_page_url":"https://doi.org/10.1109/glocom.2005.1577913","pdf_url":null,"source":{"id":"https://openalex.org/S4363608563","display_name":"GLOBECOM '05. IEEE Global Telecommunications Conference, 2005.","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"GLOBECOM '05. IEEE Global Telecommunications Conference, 2005.","raw_type":"proceedings-article"},"type":"conference-paper","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/A5075139402","display_name":"A.K.S. Al\u2010Bayati","orcid":"https://orcid.org/0000-0002-4745-5825"},"institutions":[{"id":"https://openalex.org/I157392197","display_name":"Hashemite University","ror":"https://ror.org/04a1r5z94","country_code":"JO","type":"education","lineage":["https://openalex.org/I157392197"]}],"countries":["JO"],"is_corresponding":false,"raw_author_name":"A.K.S. Al-Bayati","raw_affiliation_strings":["Department of Electrical and Computer Engineering, Hashemite University, Zarqa, Jordan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Hashemite University, Zarqa, Jordan","institution_ids":["https://openalex.org/I157392197"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5024371927","display_name":"Shankar Prakriya","orcid":"https://orcid.org/0000-0002-9581-9275"},"institutions":[{"id":"https://openalex.org/I68891433","display_name":"Indian Institute of Technology Delhi","ror":"https://ror.org/049tgcd06","country_code":"IN","type":"education","lineage":["https://openalex.org/I68891433"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"S. Prakriya","raw_affiliation_strings":["Department of Electrical Engineering, Indian Institute of Technology, New Delhi, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, Indian Institute of Technology, New Delhi, India","institution_ids":["https://openalex.org/I68891433"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5076366468","display_name":"S. Prasad","orcid":"https://orcid.org/0000-0003-3976-5839"},"institutions":[{"id":"https://openalex.org/I68891433","display_name":"Indian Institute of Technology Delhi","ror":"https://ror.org/049tgcd06","country_code":"IN","type":"education","lineage":["https://openalex.org/I68891433"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"S. Prasad","raw_affiliation_strings":["Department of Electrical Engineering, Indian Institute of Technology, New Delhi, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, Indian Institute of Technology, New Delhi, India","institution_ids":["https://openalex.org/I68891433"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":"46","issue":null,"first_page":"5 pp.","last_page":"5 pp."},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10575","display_name":"Wireless Communication Networks Research","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/T10575","display_name":"Wireless Communication Networks Research","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/T10125","display_name":"Advanced Wireless Communication Techniques","score":0.9983999729156494,"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/T11447","display_name":"Blind Source Separation Techniques","score":0.9980999827384949,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"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/phase-shift-keying","display_name":"Phase-shift keying","score":0.8686150312423706},{"id":"https://openalex.org/keywords/precoding","display_name":"Precoding","score":0.7421285510063171},{"id":"https://openalex.org/keywords/decoding-methods","display_name":"Decoding methods","score":0.7082034945487976},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6658874750137329},{"id":"https://openalex.org/keywords/code-division-multiple-access","display_name":"Code division multiple access","score":0.5688920617103577},{"id":"https://openalex.org/keywords/transmitter","display_name":"Transmitter","score":0.5663518309593201},{"id":"https://openalex.org/keywords/multiuser-detection","display_name":"Multiuser detection","score":0.510753870010376},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5046344995498657},{"id":"https://openalex.org/keywords/block","display_name":"Block (permutation group theory)","score":0.44939595460891724},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.4260680675506592},{"id":"https://openalex.org/keywords/bit-error-rate","display_name":"Bit error rate","score":0.3105136752128601},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.2829287052154541},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.24358007311820984},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.17759668827056885},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.14234909415245056},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.11123466491699219}],"concepts":[{"id":"https://openalex.org/C186378180","wikidata":"https://www.wikidata.org/wiki/Q4874866","display_name":"Phase-shift keying","level":4,"score":0.8686150312423706},{"id":"https://openalex.org/C160562895","wikidata":"https://www.wikidata.org/wiki/Q7239557","display_name":"Precoding","level":4,"score":0.7421285510063171},{"id":"https://openalex.org/C57273362","wikidata":"https://www.wikidata.org/wiki/Q576722","display_name":"Decoding methods","level":2,"score":0.7082034945487976},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6658874750137329},{"id":"https://openalex.org/C47696715","wikidata":"https://www.wikidata.org/wiki/Q233394","display_name":"Code division multiple access","level":2,"score":0.5688920617103577},{"id":"https://openalex.org/C47798520","wikidata":"https://www.wikidata.org/wiki/Q190157","display_name":"Transmitter","level":3,"score":0.5663518309593201},{"id":"https://openalex.org/C2777104032","wikidata":"https://www.wikidata.org/wiki/Q16324514","display_name":"Multiuser detection","level":3,"score":0.510753870010376},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5046344995498657},{"id":"https://openalex.org/C2777210771","wikidata":"https://www.wikidata.org/wiki/Q4927124","display_name":"Block (permutation group theory)","level":2,"score":0.44939595460891724},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.4260680675506592},{"id":"https://openalex.org/C56296756","wikidata":"https://www.wikidata.org/wiki/Q840922","display_name":"Bit error rate","level":3,"score":0.3105136752128601},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.2829287052154541},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.24358007311820984},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.17759668827056885},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.14234909415245056},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.11123466491699219},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/glocom.2005.1577913","is_oa":false,"landing_page_url":"https://doi.org/10.1109/glocom.2005.1577913","pdf_url":null,"source":{"id":"https://openalex.org/S4363608563","display_name":"GLOBECOM '05. IEEE Global Telecommunications Conference, 2005.","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"GLOBECOM '05. IEEE Global Telecommunications Conference, 2005.","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":12,"referenced_works":["https://openalex.org/W1972413896","https://openalex.org/W2027068125","https://openalex.org/W2101425297","https://openalex.org/W2105186495","https://openalex.org/W2110562101","https://openalex.org/W2120247156","https://openalex.org/W2122826800","https://openalex.org/W2126244090","https://openalex.org/W2144228966","https://openalex.org/W2153048002","https://openalex.org/W2159187245","https://openalex.org/W2385126988"],"related_works":["https://openalex.org/W1933375666","https://openalex.org/W2171748043","https://openalex.org/W4236271946","https://openalex.org/W2105308860","https://openalex.org/W1997358463","https://openalex.org/W2545278143","https://openalex.org/W174650468","https://openalex.org/W2143469310","https://openalex.org/W2367731216","https://openalex.org/W2614517342"],"abstract_inverted_index":{"We":[0,16],"address":[1],"the":[2,24,27,31,41,49,52,57,60,87,121],"problem":[3],"of":[4,23,26,43,51,56,59,91],"blind":[5],"multiuser":[6],"detection":[7,106],"in":[8,79,100,120],"DS/CDMA":[9],"systems":[10],"that":[11,18],"employ":[12],"QPSK":[13,28,92],"data":[14,29,42],"modulation.":[15],"show":[17],"by":[19],"suitable":[20],"precoding":[21],"(modification)":[22],"phase":[25,88],"at":[30],"transmitter":[32],"(before":[33],"spectrum":[34],"spreading),":[35],"it":[36],"is":[37,94,113],"possible":[38],"to":[39,71,116],"detect":[40],"any":[44],"user":[45],"blindly":[46],"using":[47],"only":[48],"knowledge":[50],"preceding":[53,74],"sequence,":[54],"regardless":[55],"power":[58],"interferes.":[61],"The":[62,104],"proposed":[63,105],"method":[64],"can":[65],"be":[66],"seen":[67],"as":[68],"an":[69],"extension":[70],"our":[72],"earlier":[73],"approach":[75],"for":[76],"BPSK":[77],"signals":[78,93],"AKS":[80],"Al":[81],"Bayati":[82],"et":[83],"al.":[84],"(2004).":[85],"However,":[86],"preceding/decoding":[89],"operation":[90],"a":[95,109],"more":[96],"challenging":[97],"problem,":[98],"especially":[99],"its":[101],"decoding":[102],"procedure.":[103],"scheme":[107],"has":[108],"deterministic":[110],"nature":[111],"and":[112],"therefore":[114],"shown":[115],"provide":[117],"performance":[118],"advantage":[119],"medium-to-high":[122],"SNR":[123],"region.":[124]},"counts_by_year":[],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2025-10-10T00:00:00"}