{"id":"https://openalex.org/W2052091062","doi":"https://doi.org/10.1109/norchp.2012.6403103","title":"Energy efficient MIMO channel pre-processor using a low complexity on-line update scheme","display_name":"Energy efficient MIMO channel pre-processor using a low complexity on-line update scheme","publication_year":2012,"publication_date":"2012-11-01","ids":{"openalex":"https://openalex.org/W2052091062","doi":"https://doi.org/10.1109/norchp.2012.6403103","mag":"2052091062"},"language":"en","primary_location":{"id":"doi:10.1109/norchp.2012.6403103","is_oa":false,"landing_page_url":"https://doi.org/10.1109/norchp.2012.6403103","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"NORCHIP 2012","raw_type":"proceedings-article"},"type":"conference-paper","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://lup.lub.lu.se/record/3128242","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5101475627","display_name":"Chenxin Zhang","orcid":"https://orcid.org/0000-0002-2941-1474"},"institutions":[{"id":"https://openalex.org/I187531555","display_name":"Lund University","ror":"https://ror.org/012a77v79","country_code":"SE","type":"education","lineage":["https://openalex.org/I187531555"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Chenxin Zhang","raw_affiliation_strings":["Department of Electrical and Information Technology, Lund University, Lund, Sweden","Dept. of Electrical and Information Technology, Lund University, Box 118, SE-221 00, Sweden"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Information Technology, Lund University, Lund, Sweden","institution_ids":["https://openalex.org/I187531555"]},{"raw_affiliation_string":"Dept. of Electrical and Information Technology, Lund University, Box 118, SE-221 00, Sweden","institution_ids":["https://openalex.org/I187531555"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5111758289","display_name":"Hemanth Prabhu","orcid":null},"institutions":[{"id":"https://openalex.org/I187531555","display_name":"Lund University","ror":"https://ror.org/012a77v79","country_code":"SE","type":"education","lineage":["https://openalex.org/I187531555"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"H. Prabhu","raw_affiliation_strings":["Department of Electrical and Information Technology, Lund University, Lund, Sweden","Dept. of Electrical and Information Technology, Lund University, Box 118, SE-221 00, Sweden"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Information Technology, Lund University, Lund, Sweden","institution_ids":["https://openalex.org/I187531555"]},{"raw_affiliation_string":"Dept. of Electrical and Information Technology, Lund University, Box 118, SE-221 00, Sweden","institution_ids":["https://openalex.org/I187531555"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100322345","display_name":"Liang Liu","orcid":"https://orcid.org/0000-0001-9491-8821"},"institutions":[{"id":"https://openalex.org/I187531555","display_name":"Lund University","ror":"https://ror.org/012a77v79","country_code":"SE","type":"education","lineage":["https://openalex.org/I187531555"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Liang Liu","raw_affiliation_strings":["Department of Electrical and Information Technology, Lund University, Lund, Sweden","Dept. of Electrical and Information Technology, Lund University, Box 118, SE-221 00, Sweden"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Information Technology, Lund University, Lund, Sweden","institution_ids":["https://openalex.org/I187531555"]},{"raw_affiliation_string":"Dept. of Electrical and Information Technology, Lund University, Box 118, SE-221 00, Sweden","institution_ids":["https://openalex.org/I187531555"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5045195961","display_name":"Ove Edfors","orcid":"https://orcid.org/0000-0001-5966-8468"},"institutions":[{"id":"https://openalex.org/I187531555","display_name":"Lund University","ror":"https://ror.org/012a77v79","country_code":"SE","type":"education","lineage":["https://openalex.org/I187531555"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"O. Edfors","raw_affiliation_strings":["Department of Electrical and Information Technology, Lund University, Lund, Sweden","Dept. of Electrical and Information Technology, Lund University, Box 118, SE-221 00, Sweden"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Information Technology, Lund University, Lund, Sweden","institution_ids":["https://openalex.org/I187531555"]},{"raw_affiliation_string":"Dept. of Electrical and Information Technology, Lund University, Box 118, SE-221 00, Sweden","institution_ids":["https://openalex.org/I187531555"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5017806402","display_name":"Viktor \u00d6wall","orcid":"https://orcid.org/0000-0002-3368-1207"},"institutions":[{"id":"https://openalex.org/I187531555","display_name":"Lund University","ror":"https://ror.org/012a77v79","country_code":"SE","type":"education","lineage":["https://openalex.org/I187531555"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"V. Owall","raw_affiliation_strings":["Department of Electrical and Information Technology, Lund University, Lund, Sweden","Dept. of Electrical and Information Technology, Lund University, Box 118, SE-221 00, Sweden"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Information Technology, Lund University, Lund, Sweden","institution_ids":["https://openalex.org/I187531555"]},{"raw_affiliation_string":"Dept. of Electrical and Information Technology, Lund University, Box 118, SE-221 00, Sweden","institution_ids":["https://openalex.org/I187531555"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I187531555"],"apc_list":null,"apc_paid":null,"fwci":1.6492,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.82672884,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":96},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"4"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10125","display_name":"Advanced Wireless Communication Techniques","score":0.9995999932289124,"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":0.9995999932289124,"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/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9994999766349792,"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":0.9980000257492065,"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/channel","display_name":"Channel (broadcasting)","score":0.660318911075592},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5452868938446045},{"id":"https://openalex.org/keywords/energy","display_name":"Energy (signal processing)","score":0.5244272351264954},{"id":"https://openalex.org/keywords/line","display_name":"Line (geometry)","score":0.4824124574661255},{"id":"https://openalex.org/keywords/matrix","display_name":"Matrix (chemical analysis)","score":0.481781929731369},{"id":"https://openalex.org/keywords/scheme","display_name":"Scheme (mathematics)","score":0.4739689528942108},{"id":"https://openalex.org/keywords/cmos","display_name":"CMOS","score":0.42599719762802124},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.3944510519504547},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.23436233401298523},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.19226479530334473},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.1894698143005371},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.17746594548225403},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.08798548579216003}],"concepts":[{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.660318911075592},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5452868938446045},{"id":"https://openalex.org/C186370098","wikidata":"https://www.wikidata.org/wiki/Q442787","display_name":"Energy (signal processing)","level":2,"score":0.5244272351264954},{"id":"https://openalex.org/C198352243","wikidata":"https://www.wikidata.org/wiki/Q37105","display_name":"Line (geometry)","level":2,"score":0.4824124574661255},{"id":"https://openalex.org/C106487976","wikidata":"https://www.wikidata.org/wiki/Q685816","display_name":"Matrix (chemical analysis)","level":2,"score":0.481781929731369},{"id":"https://openalex.org/C77618280","wikidata":"https://www.wikidata.org/wiki/Q1155772","display_name":"Scheme (mathematics)","level":2,"score":0.4739689528942108},{"id":"https://openalex.org/C46362747","wikidata":"https://www.wikidata.org/wiki/Q173431","display_name":"CMOS","level":2,"score":0.42599719762802124},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3944510519504547},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.23436233401298523},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.19226479530334473},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.1894698143005371},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.17746594548225403},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.08798548579216003},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.0},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/norchp.2012.6403103","is_oa":false,"landing_page_url":"https://doi.org/10.1109/norchp.2012.6403103","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"NORCHIP 2012","raw_type":"proceedings-article"},{"id":"pmh:oai:lup.lub.lu.se:c38f7bdc-e5f5-4292-8d48-d09dd7dceed4","is_oa":true,"landing_page_url":"https://lup.lub.lu.se/record/3128242","pdf_url":null,"source":{"id":"https://openalex.org/S4306400536","display_name":"Lund University Publications (Lund University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I187531555","host_organization_name":"Lund University","host_organization_lineage":["https://openalex.org/I187531555"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"info:eu-repo/semantics/conferencePaper"}],"best_oa_location":{"id":"pmh:oai:lup.lub.lu.se:c38f7bdc-e5f5-4292-8d48-d09dd7dceed4","is_oa":true,"landing_page_url":"https://lup.lub.lu.se/record/3128242","pdf_url":null,"source":{"id":"https://openalex.org/S4306400536","display_name":"Lund University Publications (Lund University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I187531555","host_organization_name":"Lund University","host_organization_lineage":["https://openalex.org/I187531555"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"info:eu-repo/semantics/conferencePaper"},"sustainable_development_goals":[{"display_name":"Affordable and clean energy","score":0.9100000262260437,"id":"https://metadata.un.org/sdg/7"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":8,"referenced_works":["https://openalex.org/W1558527711","https://openalex.org/W2022148313","https://openalex.org/W2103925854","https://openalex.org/W2129037711","https://openalex.org/W2131029793","https://openalex.org/W2159008902","https://openalex.org/W2171973013","https://openalex.org/W2532954915"],"related_works":["https://openalex.org/W3014521742","https://openalex.org/W2617868873","https://openalex.org/W3204141294","https://openalex.org/W4306968100","https://openalex.org/W2562383580","https://openalex.org/W2169415604","https://openalex.org/W2171986175","https://openalex.org/W2464627195","https://openalex.org/W2089791793","https://openalex.org/W1491218245"],"abstract_inverted_index":{"This":[0],"paper":[1],"presents":[2],"a":[3,64,68,75,86],"low-complexity":[4],"energy":[5,99],"efficient":[6],"channel":[7,22,33,57],"pre-processing":[8,58],"update":[9,52],"scheme,":[10],"targeting":[11],"the":[12,25,40],"emerging":[13],"3GPP":[14],"long":[15],"term":[16],"evolution":[17],"advanced":[18],"(LTE-A)":[19],"downlink.":[20],"Upon":[21],"matrix":[23,34],"renewals,":[24],"number":[26],"of":[27,78,82],"explicit":[28],"QR":[29],"decompositions":[30],"(QRD)":[31],"and":[32,45],"inversions":[35],"are":[36],"reduced":[37],"since":[38],"only":[39],"upper":[41],"triangular":[42],"matrices":[43],"R":[44],"R-1are":[46],"updated,":[47],"based":[48],"on":[49],"an":[50],"on-line":[51],"decision":[53],"mechanism.":[54],"The":[55],"proposed":[56],"updater":[59],"has":[60],"been":[61],"designed":[62],"as":[63],"dedicated":[65],"unit":[66],"in":[67,74,106],"65":[69],"nm":[70],"CMOS":[71],"technology,":[72],"resulting":[73],"core":[76],"area":[77],"0.242mm2(equivalent":[79],"gate":[80],"count":[81],"116K).":[83],"Running":[84],"at":[85],"330MHz":[87],"clock,":[88],"each":[89],"QRD":[90,105],"or":[91,95],"R-1update":[92],"consumes":[93],"4":[94],"2":[96],"times":[97],"less":[98],"compared":[100],"to":[101],"one":[102],"exact":[103],"state-of-the-art":[104],"open":[107],"literature.":[108]},"counts_by_year":[{"year":2015,"cited_by_count":2},{"year":2013,"cited_by_count":2}],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2025-10-10T00:00:00"}