{"id":"https://openalex.org/W2568798272","doi":"https://doi.org/10.1155/2017/3607167","title":"Maximal Ratio Combining Using Channel Estimation in Chaos Based Pilot-Added DS-CDMA System with Antenna Diversity","display_name":"Maximal Ratio Combining Using Channel Estimation in Chaos Based Pilot-Added DS-CDMA System with Antenna Diversity","publication_year":2017,"publication_date":"2017-01-01","ids":{"openalex":"https://openalex.org/W2568798272","doi":"https://doi.org/10.1155/2017/3607167","mag":"2568798272"},"language":"en","primary_location":{"id":"doi:10.1155/2017/3607167","is_oa":true,"landing_page_url":"https://doi.org/10.1155/2017/3607167","pdf_url":"http://downloads.hindawi.com/journals/wcmc/2017/3607167.pdf","source":{"id":"https://openalex.org/S235346","display_name":"Wireless Communications and Mobile Computing","issn_l":"1530-8669","issn":["1530-8669","1530-8677"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Wireless Communications and Mobile Computing","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"hybrid","oa_url":"http://downloads.hindawi.com/journals/wcmc/2017/3607167.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5013799465","display_name":"Meher Krishna Patel","orcid":"https://orcid.org/0000-0003-1568-2406"},"institutions":[{"id":"https://openalex.org/I154130895","display_name":"University of Auckland","ror":"https://ror.org/03b94tp07","country_code":"NZ","type":"education","lineage":["https://openalex.org/I154130895"]}],"countries":["NZ"],"is_corresponding":true,"raw_author_name":"Meher Krishna Patel","raw_affiliation_strings":["Department of Electrical and Computer Engineering, The University of Auckland, Auckland, New Zealand"],"raw_orcid":"https://orcid.org/0000-0003-1568-2406","affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, The University of Auckland, Auckland, New Zealand","institution_ids":["https://openalex.org/I154130895"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5003428456","display_name":"Stevan Berber","orcid":"https://orcid.org/0000-0002-2432-3088"},"institutions":[{"id":"https://openalex.org/I154130895","display_name":"University of Auckland","ror":"https://ror.org/03b94tp07","country_code":"NZ","type":"education","lineage":["https://openalex.org/I154130895"]}],"countries":["NZ"],"is_corresponding":false,"raw_author_name":"Stevan M. Berber","raw_affiliation_strings":["Department of Electrical and Computer Engineering, The University of Auckland, Auckland, New Zealand"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, The University of Auckland, Auckland, New Zealand","institution_ids":["https://openalex.org/I154130895"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5023739602","display_name":"K.W. Sowerby","orcid":null},"institutions":[{"id":"https://openalex.org/I154130895","display_name":"University of Auckland","ror":"https://ror.org/03b94tp07","country_code":"NZ","type":"education","lineage":["https://openalex.org/I154130895"]}],"countries":["NZ"],"is_corresponding":false,"raw_author_name":"Kevin W. Sowerby","raw_affiliation_strings":["Department of Electrical and Computer Engineering, The University of Auckland, Auckland, New Zealand"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, The University of Auckland, Auckland, New Zealand","institution_ids":["https://openalex.org/I154130895"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5013799465"],"corresponding_institution_ids":["https://openalex.org/I154130895"],"apc_list":{"value":2300,"currency":"USD","value_usd":2300},"apc_paid":{"value":2300,"currency":"USD","value_usd":2300},"fwci":0.3471,"has_fulltext":true,"cited_by_count":3,"citation_normalized_percentile":{"value":0.55164368,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":"2017","issue":null,"first_page":"1","last_page":"11"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10244","display_name":"Chaos control and synchronization","score":0.9991999864578247,"subfield":{"id":"https://openalex.org/subfields/3109","display_name":"Statistical and Nonlinear Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10244","display_name":"Chaos control and synchronization","score":0.9991999864578247,"subfield":{"id":"https://openalex.org/subfields/3109","display_name":"Statistical and Nonlinear Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10125","display_name":"Advanced Wireless Communication Techniques","score":0.9980999827384949,"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/T12162","display_name":"Cellular Automata and Applications","score":0.9980999827384949,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"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/fading","display_name":"Fading","score":0.7095872163772583},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7061057090759277},{"id":"https://openalex.org/keywords/maximal-ratio-combining","display_name":"Maximal-ratio combining","score":0.6569321155548096},{"id":"https://openalex.org/keywords/bit-error-rate","display_name":"Bit error rate","score":0.6526503562927246},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5259490013122559},{"id":"https://openalex.org/keywords/estimator","display_name":"Estimator","score":0.5198776721954346},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.48900043964385986},{"id":"https://openalex.org/keywords/code-division-multiple-access","display_name":"Code division multiple access","score":0.42206281423568726},{"id":"https://openalex.org/keywords/antenna-diversity","display_name":"Antenna diversity","score":0.41891396045684814},{"id":"https://openalex.org/keywords/antenna","display_name":"Antenna (radio)","score":0.41423481702804565},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.3909655511379242},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.28894439339637756},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.2563430070877075},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.20599648356437683},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.09531089663505554}],"concepts":[{"id":"https://openalex.org/C81978471","wikidata":"https://www.wikidata.org/wiki/Q1196572","display_name":"Fading","level":3,"score":0.7095872163772583},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7061057090759277},{"id":"https://openalex.org/C86024645","wikidata":"https://www.wikidata.org/wiki/Q6795632","display_name":"Maximal-ratio combining","level":4,"score":0.6569321155548096},{"id":"https://openalex.org/C56296756","wikidata":"https://www.wikidata.org/wiki/Q840922","display_name":"Bit error rate","level":3,"score":0.6526503562927246},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5259490013122559},{"id":"https://openalex.org/C185429906","wikidata":"https://www.wikidata.org/wiki/Q1130160","display_name":"Estimator","level":2,"score":0.5198776721954346},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.48900043964385986},{"id":"https://openalex.org/C47696715","wikidata":"https://www.wikidata.org/wiki/Q233394","display_name":"Code division multiple access","level":2,"score":0.42206281423568726},{"id":"https://openalex.org/C60069766","wikidata":"https://www.wikidata.org/wiki/Q357054","display_name":"Antenna diversity","level":3,"score":0.41891396045684814},{"id":"https://openalex.org/C21822782","wikidata":"https://www.wikidata.org/wiki/Q131214","display_name":"Antenna (radio)","level":2,"score":0.41423481702804565},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.3909655511379242},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.28894439339637756},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.2563430070877075},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.20599648356437683},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.09531089663505554}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1155/2017/3607167","is_oa":true,"landing_page_url":"https://doi.org/10.1155/2017/3607167","pdf_url":"http://downloads.hindawi.com/journals/wcmc/2017/3607167.pdf","source":{"id":"https://openalex.org/S235346","display_name":"Wireless Communications and Mobile Computing","issn_l":"1530-8669","issn":["1530-8669","1530-8677"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Wireless Communications and Mobile Computing","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:8745c71bed584f9a8867f738fb1d5ad7","is_oa":false,"landing_page_url":"https://doaj.org/article/8745c71bed584f9a8867f738fb1d5ad7","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","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":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Wireless Communications and Mobile Computing, Vol 2017 (2017)","raw_type":"article"},{"id":"pmh:oai:researchspace.auckland.ac.nz:2292/34603","is_oa":true,"landing_page_url":"http://hdl.handle.net/2292/34603","pdf_url":null,"source":{"id":"https://openalex.org/S7407055463","display_name":"ResearchSpace (University of Auckland)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I154130895","host_organization_name":"University of Auckland","host_organization_lineage":["https://openalex.org/I154130895"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Journal Article"}],"best_oa_location":{"id":"doi:10.1155/2017/3607167","is_oa":true,"landing_page_url":"https://doi.org/10.1155/2017/3607167","pdf_url":"http://downloads.hindawi.com/journals/wcmc/2017/3607167.pdf","source":{"id":"https://openalex.org/S235346","display_name":"Wireless Communications and Mobile Computing","issn_l":"1530-8669","issn":["1530-8669","1530-8677"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Wireless Communications and Mobile Computing","raw_type":"journal-article"},"sustainable_development_goals":[{"score":0.47999998927116394,"display_name":"Peace, Justice and strong institutions","id":"https://metadata.un.org/sdg/16"}],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2568798272.pdf","grobid_xml":"https://content.openalex.org/works/W2568798272.grobid-xml"},"referenced_works_count":33,"referenced_works":["https://openalex.org/W268768761","https://openalex.org/W419825845","https://openalex.org/W1490437127","https://openalex.org/W1516253466","https://openalex.org/W1555978468","https://openalex.org/W1975853070","https://openalex.org/W1995493818","https://openalex.org/W2005889735","https://openalex.org/W2018869829","https://openalex.org/W2023548244","https://openalex.org/W2024448650","https://openalex.org/W2030298796","https://openalex.org/W2037951351","https://openalex.org/W2061461220","https://openalex.org/W2061800611","https://openalex.org/W2066898651","https://openalex.org/W2067763614","https://openalex.org/W2090020911","https://openalex.org/W2094179064","https://openalex.org/W2107080958","https://openalex.org/W2108279928","https://openalex.org/W2110659753","https://openalex.org/W2112017702","https://openalex.org/W2119975016","https://openalex.org/W2125138719","https://openalex.org/W2140308925","https://openalex.org/W2145356135","https://openalex.org/W2149897854","https://openalex.org/W2151961068","https://openalex.org/W2168467796","https://openalex.org/W2172487533","https://openalex.org/W3099188718","https://openalex.org/W3147028311"],"related_works":["https://openalex.org/W1972895463","https://openalex.org/W2106060791","https://openalex.org/W2096290492","https://openalex.org/W2114966992","https://openalex.org/W1982854057","https://openalex.org/W2550439779","https://openalex.org/W202123665","https://openalex.org/W2030258072","https://openalex.org/W2186577153","https://openalex.org/W2089528186"],"abstract_inverted_index":{"This":[0],"paper":[1],"presents":[2],"an":[3],"adaptive":[4],"multiuser":[5],"transceiver":[6],"scheme":[7],"for":[8,40,70],"DS-CDMA":[9],"systems":[10,118],"in":[11,44,78,151,157],"which":[12],"pilot":[13,87,100],"symbols":[14],"are":[15,52,63,106],"added":[16,114],"to":[17,20,189],"users\u2019":[18],"data":[19,102],"estimate":[21],"complex":[22,49],"channel":[23,42,155,179],"fading":[24,46,50],"coefficients.":[25],"The":[26,48,126],"performance":[27,97,112,150,172],"of":[28,76,86,98,113,123,154,173],"receiver":[29,165],"antenna":[30,166],"diversity":[31,167],"with":[32],"maximal":[33,67],"ratio":[34,68],"combining":[35],"(MRC)":[36],"technique":[37,129,168],"is":[38,81,181,185],"analyzed":[39],"imperfect":[41],"estimation":[43],"flat":[45],"environments.":[47],"coefficients":[51,62],"estimated":[53],"using":[54],"least":[55],"mean":[56],"square":[57],"(LMS)":[58],"algorithm":[59],"and":[60,95,101,115,119,163],"these":[61],"utilized":[64],"by":[65],"the":[66,72,84,111,121,131,140,145,152,158,164,171,174,190],"combiner":[69],"generating":[71],"decision":[73],"variable.":[74],"Probability":[75],"error":[77,92,148],"closed":[79],"form":[80],"derived.":[82],"Further,":[83],"effect":[85],"signal":[88,103],"power":[89],"on":[90],"bit":[91,147],"rate":[93,149],"(BER)":[94],"BER":[96],"multiplexed":[99,116],"transmission":[104],"scenario":[105],"investigated.":[107],"We":[108],"have":[109],"compared":[110],"pilot-data":[117],"concluded":[120],"advantages":[122],"both":[124],"systems.":[125],"proposed":[127,175],"CDMA":[128,161],"uses":[130],"chaotic":[132,159],"sequence":[133],"as":[134],"spreading":[135],"sequence.":[136],"Assuming":[137],"proper":[138],"synchronization,":[139],"computer":[141],"simulation":[142],"results":[143],"demonstrate":[144],"better":[146],"presence":[153],"estimator":[156,180],"based":[160],"system":[162],"further":[169],"improves":[170],"system.":[176],"Also,":[177],"no":[178,186],"required":[182],"if":[183],"there":[184],"phase":[187],"distortion":[188],"transmitted":[191],"signal.":[192]},"counts_by_year":[{"year":2022,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2017,"cited_by_count":1}],"updated_date":"2026-05-21T06:26:12.895304","created_date":"2025-10-10T00:00:00"}