{"id":"https://openalex.org/W2027825741","doi":"https://doi.org/10.1109/iswcs.2011.6125403","title":"On beamforming for overlay cognitive multiple antenna systems","display_name":"On beamforming for overlay cognitive multiple antenna systems","publication_year":2011,"publication_date":"2011-11-01","ids":{"openalex":"https://openalex.org/W2027825741","doi":"https://doi.org/10.1109/iswcs.2011.6125403","mag":"2027825741"},"language":"en","primary_location":{"id":"doi:10.1109/iswcs.2011.6125403","is_oa":false,"landing_page_url":"https://doi.org/10.1109/iswcs.2011.6125403","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 8th International Symposium on Wireless Communication Systems","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/A5049407920","display_name":"Carolin Huppert","orcid":null},"institutions":[{"id":"https://openalex.org/I196349391","display_name":"Universit\u00e4t Ulm","ror":"https://ror.org/032000t02","country_code":"DE","type":"education","lineage":["https://openalex.org/I196349391"]}],"countries":["DE"],"is_corresponding":true,"raw_author_name":"Carolin Huppert","raw_affiliation_strings":["Institute of Telecommunications and Applied Information Theory, Ulm University, Ulm, Germany","Institute of Telecommunications and Applied Information Theory, Ulm University, 89081 Ulm, Germany"],"affiliations":[{"raw_affiliation_string":"Institute of Telecommunications and Applied Information Theory, Ulm University, Ulm, Germany","institution_ids":["https://openalex.org/I196349391"]},{"raw_affiliation_string":"Institute of Telecommunications and Applied Information Theory, Ulm University, 89081 Ulm, Germany","institution_ids":["https://openalex.org/I196349391"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5034269994","display_name":"Aydin Sezgin","orcid":"https://orcid.org/0000-0003-3511-2662"},"institutions":[{"id":"https://openalex.org/I2799784675","display_name":"University Hospitals of the Ruhr-University of Bochum","ror":"https://ror.org/03zcpvf19","country_code":"DE","type":"healthcare","lineage":["https://openalex.org/I2799784675"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Aydin Sezgin","raw_affiliation_strings":["Chair of Digital Communication Systems, RUB, Bochum, Germany","Chair of Digital Communication Systems RUB, Universita\u00a8tsstr. 150, 44801 Bochum, Germany"],"affiliations":[{"raw_affiliation_string":"Chair of Digital Communication Systems, RUB, Bochum, Germany","institution_ids":["https://openalex.org/I2799784675"]},{"raw_affiliation_string":"Chair of Digital Communication Systems RUB, Universita\u00a8tsstr. 150, 44801 Bochum, Germany","institution_ids":["https://openalex.org/I2799784675"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5049407920"],"corresponding_institution_ids":["https://openalex.org/I196349391"],"apc_list":null,"apc_paid":null,"fwci":0.3501,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.61557174,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"467","last_page":"471"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10579","display_name":"Cognitive Radio Networks and Spectrum Sensing","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/T10579","display_name":"Cognitive Radio Networks and Spectrum Sensing","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/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9997000098228455,"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":0.9984999895095825,"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/beamforming","display_name":"Beamforming","score":0.75360107421875},{"id":"https://openalex.org/keywords/covariance-matrix","display_name":"Covariance matrix","score":0.752237856388092},{"id":"https://openalex.org/keywords/overlay","display_name":"Overlay","score":0.7152637839317322},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6761036515235901},{"id":"https://openalex.org/keywords/covariance","display_name":"Covariance","score":0.6419692039489746},{"id":"https://openalex.org/keywords/cognitive-radio","display_name":"Cognitive radio","score":0.5341049432754517},{"id":"https://openalex.org/keywords/antenna","display_name":"Antenna (radio)","score":0.5289133787155151},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4918651580810547},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.4520639181137085},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.25760966539382935},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.24634596705436707},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.14512020349502563},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.11503148078918457}],"concepts":[{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.75360107421875},{"id":"https://openalex.org/C185142706","wikidata":"https://www.wikidata.org/wiki/Q1134404","display_name":"Covariance matrix","level":2,"score":0.752237856388092},{"id":"https://openalex.org/C136085584","wikidata":"https://www.wikidata.org/wiki/Q910289","display_name":"Overlay","level":2,"score":0.7152637839317322},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6761036515235901},{"id":"https://openalex.org/C178650346","wikidata":"https://www.wikidata.org/wiki/Q201984","display_name":"Covariance","level":2,"score":0.6419692039489746},{"id":"https://openalex.org/C149946192","wikidata":"https://www.wikidata.org/wiki/Q3235733","display_name":"Cognitive radio","level":3,"score":0.5341049432754517},{"id":"https://openalex.org/C21822782","wikidata":"https://www.wikidata.org/wiki/Q131214","display_name":"Antenna (radio)","level":2,"score":0.5289133787155151},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4918651580810547},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.4520639181137085},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.25760966539382935},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.24634596705436707},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.14512020349502563},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.11503148078918457},{"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:10.1109/iswcs.2011.6125403","is_oa":false,"landing_page_url":"https://doi.org/10.1109/iswcs.2011.6125403","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 8th International Symposium on Wireless Communication Systems","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":11,"referenced_works":["https://openalex.org/W595252221","https://openalex.org/W1620839552","https://openalex.org/W2011854373","https://openalex.org/W2060659945","https://openalex.org/W2063773941","https://openalex.org/W2102617152","https://openalex.org/W2119007567","https://openalex.org/W2153090463","https://openalex.org/W2163824300","https://openalex.org/W2179880807","https://openalex.org/W6682468974"],"related_works":["https://openalex.org/W595346907","https://openalex.org/W153296825","https://openalex.org/W598989511","https://openalex.org/W2375779923","https://openalex.org/W2041986468","https://openalex.org/W1967800214","https://openalex.org/W2559261346","https://openalex.org/W2886934452","https://openalex.org/W1489099099","https://openalex.org/W2024369332"],"abstract_inverted_index":{"We":[0,56,83],"determine":[1],"the":[2,14,26,43,47,63,68,78,90,94,106,113],"maximum":[3],"achievable":[4],"rate":[5],"in":[6],"a":[7,33,37],"cognitive":[8,27],"multiple":[9],"antenna":[10,39],"system":[11,19,28],"based":[12],"on":[13],"overlay":[15],"approach.":[16],"The":[17,73,102],"primary":[18,34,48],"is":[20,40],"assumed":[21],"to":[22,25,53,112],"be":[23],"oblivious":[24],"and":[29],"thus":[30],"non-adaptive.":[31],"Furthermore,":[32],"receiver":[35],"with":[36,93],"single":[38],"considered.":[41],"Thus,":[42],"covariance":[44,65,91],"matrices":[45],"for":[46,61,67,77,88],"messages":[49],"are":[50,100],"chosen":[51],"according":[52],"beamforming":[54],"strategies.":[55,82],"establish":[57],"an":[58],"iterative":[59],"method":[60],"determining":[62,89],"optimum":[64,74],"matrix":[66,92],"transmit":[69],"strategy":[70],"considered":[71],"here.":[72],"solution":[75],"allows":[76],"evaluation":[79],"of":[80],"suboptimum":[81,86,107],"investigate":[84],"two":[85],"methods":[87],"advantage":[95],"that":[96,105],"closed":[97],"form":[98],"solutions":[99,108],"available.":[101],"results":[103],"reveal":[104],"achieve":[109],"performances":[110],"close":[111],"optimum.":[114]},"counts_by_year":[{"year":2015,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
