{"id":"https://openalex.org/W2185031379","doi":"https://doi.org/10.1109/pimrc.2015.7343263","title":"Joint spatial channel and coupling impedance matrices estimation in compact MIMO systems: The use of adaptive loads","display_name":"Joint spatial channel and coupling impedance matrices estimation in compact MIMO systems: The use of adaptive loads","publication_year":2015,"publication_date":"2015-08-01","ids":{"openalex":"https://openalex.org/W2185031379","doi":"https://doi.org/10.1109/pimrc.2015.7343263","mag":"2185031379"},"language":"en","primary_location":{"id":"doi:10.1109/pimrc.2015.7343263","is_oa":false,"landing_page_url":"https://doi.org/10.1109/pimrc.2015.7343263","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","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/A5005834443","display_name":"Yahia B. Hassan","orcid":"https://orcid.org/0000-0003-1701-2502"},"institutions":[{"id":"https://openalex.org/I35440088","display_name":"ETH Zurich","ror":"https://ror.org/05a28rw58","country_code":"CH","type":"education","lineage":["https://openalex.org/I2799323385","https://openalex.org/I35440088"]}],"countries":["CH"],"is_corresponding":false,"raw_author_name":"Yahia Hassan","raw_affiliation_strings":["Communication Technology Laboratory, ETH Zurich, Zurich, Switzerland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Communication Technology Laboratory, ETH Zurich, Zurich, Switzerland","institution_ids":["https://openalex.org/I35440088"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5088820229","display_name":"Armin Wittneben","orcid":"https://orcid.org/0000-0001-7768-1703"},"institutions":[{"id":"https://openalex.org/I35440088","display_name":"ETH Zurich","ror":"https://ror.org/05a28rw58","country_code":"CH","type":"education","lineage":["https://openalex.org/I2799323385","https://openalex.org/I35440088"]}],"countries":["CH"],"is_corresponding":false,"raw_author_name":"Armin Wittneben","raw_affiliation_strings":["Communication Technology Laboratory, ETH Zurich, Zurich, Switzerland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Communication Technology Laboratory, ETH Zurich, Zurich, Switzerland","institution_ids":["https://openalex.org/I35440088"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.4017,"has_fulltext":false,"cited_by_count":10,"citation_normalized_percentile":{"value":0.68124542,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":null,"issue":null,"first_page":"29","last_page":"33"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9998999834060669,"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/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9998999834060669,"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/T10069","display_name":"Antenna Design and Analysis","score":0.9990000128746033,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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/T11392","display_name":"Energy Harvesting in Wireless Networks","score":0.9988999962806702,"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/mimo","display_name":"MIMO","score":0.7680506706237793},{"id":"https://openalex.org/keywords/coupling","display_name":"Coupling (piping)","score":0.6466646194458008},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.6261934041976929},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6147915720939636},{"id":"https://openalex.org/keywords/matrix","display_name":"Matrix (chemical analysis)","score":0.5204123258590698},{"id":"https://openalex.org/keywords/topology","display_name":"Topology (electrical circuits)","score":0.5081188678741455},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.5069551467895508},{"id":"https://openalex.org/keywords/spatial-correlation","display_name":"Spatial correlation","score":0.4919590651988983},{"id":"https://openalex.org/keywords/impedance-parameters","display_name":"Impedance parameters","score":0.4822328984737396},{"id":"https://openalex.org/keywords/joint","display_name":"Joint (building)","score":0.48047107458114624},{"id":"https://openalex.org/keywords/spatial-multiplexing","display_name":"Spatial multiplexing","score":0.46986091136932373},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4146217703819275},{"id":"https://openalex.org/keywords/electrical-impedance","display_name":"Electrical impedance","score":0.3957328796386719},{"id":"https://openalex.org/keywords/control-theory","display_name":"Control theory (sociology)","score":0.3541828393936157},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.2321907877922058},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.1652042269706726},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.1178770363330841},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.09564107656478882}],"concepts":[{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.7680506706237793},{"id":"https://openalex.org/C131584629","wikidata":"https://www.wikidata.org/wiki/Q4308705","display_name":"Coupling (piping)","level":2,"score":0.6466646194458008},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.6261934041976929},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6147915720939636},{"id":"https://openalex.org/C106487976","wikidata":"https://www.wikidata.org/wiki/Q685816","display_name":"Matrix (chemical analysis)","level":2,"score":0.5204123258590698},{"id":"https://openalex.org/C184720557","wikidata":"https://www.wikidata.org/wiki/Q7825049","display_name":"Topology (electrical circuits)","level":2,"score":0.5081188678741455},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.5069551467895508},{"id":"https://openalex.org/C150060386","wikidata":"https://www.wikidata.org/wiki/Q7574054","display_name":"Spatial correlation","level":2,"score":0.4919590651988983},{"id":"https://openalex.org/C113805353","wikidata":"https://www.wikidata.org/wiki/Q13424600","display_name":"Impedance parameters","level":3,"score":0.4822328984737396},{"id":"https://openalex.org/C18555067","wikidata":"https://www.wikidata.org/wiki/Q8375051","display_name":"Joint (building)","level":2,"score":0.48047107458114624},{"id":"https://openalex.org/C85884896","wikidata":"https://www.wikidata.org/wiki/Q7574075","display_name":"Spatial multiplexing","level":4,"score":0.46986091136932373},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4146217703819275},{"id":"https://openalex.org/C17829176","wikidata":"https://www.wikidata.org/wiki/Q179043","display_name":"Electrical impedance","level":2,"score":0.3957328796386719},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.3541828393936157},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.2321907877922058},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.1652042269706726},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.1178770363330841},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.09564107656478882},{"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/C2775924081","wikidata":"https://www.wikidata.org/wiki/Q55608371","display_name":"Control (management)","level":2,"score":0.0},{"id":"https://openalex.org/C78519656","wikidata":"https://www.wikidata.org/wiki/Q101333","display_name":"Mechanical engineering","level":1,"score":0.0},{"id":"https://openalex.org/C170154142","wikidata":"https://www.wikidata.org/wiki/Q150737","display_name":"Architectural engineering","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}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/pimrc.2015.7343263","is_oa":false,"landing_page_url":"https://doi.org/10.1109/pimrc.2015.7343263","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","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":12,"referenced_works":["https://openalex.org/W1647572132","https://openalex.org/W1988152444","https://openalex.org/W1988959194","https://openalex.org/W2008486166","https://openalex.org/W2042099684","https://openalex.org/W2082582086","https://openalex.org/W2106253730","https://openalex.org/W2110188845","https://openalex.org/W2143276507","https://openalex.org/W2157755901","https://openalex.org/W2165477899","https://openalex.org/W2985849463"],"related_works":["https://openalex.org/W1972125288","https://openalex.org/W4237321995","https://openalex.org/W2159343473","https://openalex.org/W2486733753","https://openalex.org/W2606846467","https://openalex.org/W4312452255","https://openalex.org/W2036873880","https://openalex.org/W2357330935","https://openalex.org/W1574498476","https://openalex.org/W2902722876"],"abstract_inverted_index":{"In":[0,117],"this":[1],"paper":[2],"we":[3,32],"present":[4],"a":[5],"novel":[6],"way":[7],"of":[8,14,25,38,43,52,66,105],"jointly":[9],"estimating":[10],"the":[11,22,39,44,63,67,71,78,82,86,95,99,138,142],"coupling":[12,100,139],"matrix":[13,140,145],"closely":[15,125],"spaced":[16,126],"receive":[17],"antennas":[18,68],"as":[19,21],"well":[20],"spatial":[23,54,96,143],"channel":[24,88,97,144],"compact":[26],"MIMO":[27],"systems.":[28],"Unlike":[29],"conventional":[30],"approaches,":[31],"do":[33],"not":[34],"assume":[35],"any":[36],"knowledge":[37],"types":[40],"and":[41,69,85,98,127,141,148,154],"geometries":[42],"antennas,":[45],"or":[46,49],"their":[47,151,161],"separations,":[48],"having":[50],"line":[51],"sight":[53],"channels.":[55],"Our":[56,102],"algorithm":[57,103],"is":[58,104],"based":[59],"only":[60],"on":[61],"changing":[62],"load":[64,83],"impedances":[65,84],"measuring":[70],"voltages":[72],"across":[73],"such":[74,118],"loads.":[75],"We":[76],"use":[77],"nonlinear":[79],"relation":[80],"between":[81],"compound":[87],"estimates":[89],"in":[90,114,146,157],"order":[91,158],"to":[92,107,159],"estimate":[93,136],"both":[94,137],"matrix.":[101],"relevance":[106],"future":[108],"communication":[109],"systems":[110],"incorporating":[111],"heterogeneous":[112],"networks":[113,119,153],"dense":[115],"environments.":[116],"different":[120],"users/nodes":[121],"may":[122],"occasionally":[123],"be":[124],"hence,":[128],"mutually":[129],"coupled.":[130],"Using":[131],"our":[132],"algorithm,":[133],"they":[134],"can":[135],"real-time":[147],"thereby":[149],"optimize":[150],"matching":[152],"signal":[155],"processing":[156],"enhance":[160],"performance.":[162]},"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2015,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}