{"id":"https://openalex.org/W1492628619","doi":"https://doi.org/10.1109/tit.2011.2168896","title":"Channel State Feedback Over the MIMO-MAC","display_name":"Channel State Feedback Over the MIMO-MAC","publication_year":2011,"publication_date":"2011-12-01","ids":{"openalex":"https://openalex.org/W1492628619","doi":"https://doi.org/10.1109/tit.2011.2168896","mag":"1492628619"},"language":"en","primary_location":{"id":"doi:10.1109/tit.2011.2168896","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tit.2011.2168896","pdf_url":null,"source":{"id":"https://openalex.org/S4502562","display_name":"IEEE Transactions on Information Theory","issn_l":"0018-9448","issn":["0018-9448","1557-9654"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Information Theory","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"http://infoscience.epfl.ch/record/178039","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5060948425","display_name":"K. Raj Kumar","orcid":null},"institutions":[{"id":"https://openalex.org/I5124864","display_name":"\u00c9cole Polytechnique F\u00e9d\u00e9rale de Lausanne","ror":"https://ror.org/02s376052","country_code":"CH","type":"education","lineage":["https://openalex.org/I2799323385","https://openalex.org/I5124864"]}],"countries":["CH"],"is_corresponding":true,"raw_author_name":"K. Raj Kumar","raw_affiliation_strings":["Laboratoire dalgorithmique, Ecole Polytechnique F\u00e9d\u00e9rale de Lausanne, Lausanne, Switzerland","Lab. d'algorithmique, Ecole Polytech. Fed. de Lausanne, Lausanne, Switzerland"],"affiliations":[{"raw_affiliation_string":"Laboratoire dalgorithmique, Ecole Polytechnique F\u00e9d\u00e9rale de Lausanne, Lausanne, Switzerland","institution_ids":["https://openalex.org/I5124864"]},{"raw_affiliation_string":"Lab. d'algorithmique, Ecole Polytech. Fed. de Lausanne, Lausanne, Switzerland","institution_ids":["https://openalex.org/I5124864"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5058252389","display_name":"Giuseppe Caire","orcid":"https://orcid.org/0000-0002-7749-1333"},"institutions":[{"id":"https://openalex.org/I1174212","display_name":"University of Southern California","ror":"https://ror.org/03taz7m60","country_code":"US","type":"education","lineage":["https://openalex.org/I1174212"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Giuseppe Caire","raw_affiliation_strings":["Ming-Hsieh Department of Electrical Engineering, University of Southern California, Los Angeles, Los Angeles, CA, USA","Ming Hsieh Dept. of Electr. Eng., Univ. of Southern California, Los Angeles, CA, USA"],"affiliations":[{"raw_affiliation_string":"Ming-Hsieh Department of Electrical Engineering, University of Southern California, Los Angeles, Los Angeles, CA, USA","institution_ids":["https://openalex.org/I1174212"]},{"raw_affiliation_string":"Ming Hsieh Dept. of Electr. Eng., Univ. of Southern California, Los Angeles, CA, USA","institution_ids":["https://openalex.org/I1174212"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5060948425"],"corresponding_institution_ids":["https://openalex.org/I5124864"],"apc_list":null,"apc_paid":null,"fwci":0.8098,"has_fulltext":false,"cited_by_count":5,"citation_normalized_percentile":{"value":0.74428154,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"57","issue":"12","first_page":"7787","last_page":"7797"},"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/T10796","display_name":"Cooperative Communication and Network Coding","score":0.9994999766349792,"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":0.9991999864578247,"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/channel-state-information","display_name":"Channel state information","score":0.6956512928009033},{"id":"https://openalex.org/keywords/precoding","display_name":"Precoding","score":0.6779941320419312},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.6585976481437683},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5669319033622742},{"id":"https://openalex.org/keywords/fading","display_name":"Fading","score":0.543273389339447},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.5373564958572388},{"id":"https://openalex.org/keywords/decoding-methods","display_name":"Decoding methods","score":0.48874378204345703},{"id":"https://openalex.org/keywords/base-station","display_name":"Base station","score":0.47295233607292175},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.455982506275177},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.34393006563186646},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.33270031213760376},{"id":"https://openalex.org/keywords/topology","display_name":"Topology (electrical circuits)","score":0.3306516408920288},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.29948461055755615},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.25520551204681396},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.22789159417152405},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.19243022799491882},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.12162622809410095}],"concepts":[{"id":"https://openalex.org/C148063708","wikidata":"https://www.wikidata.org/wiki/Q5072511","display_name":"Channel state information","level":3,"score":0.6956512928009033},{"id":"https://openalex.org/C160562895","wikidata":"https://www.wikidata.org/wiki/Q7239557","display_name":"Precoding","level":4,"score":0.6779941320419312},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.6585976481437683},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5669319033622742},{"id":"https://openalex.org/C81978471","wikidata":"https://www.wikidata.org/wiki/Q1196572","display_name":"Fading","level":3,"score":0.543273389339447},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.5373564958572388},{"id":"https://openalex.org/C57273362","wikidata":"https://www.wikidata.org/wiki/Q576722","display_name":"Decoding methods","level":2,"score":0.48874378204345703},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.47295233607292175},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.455982506275177},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.34393006563186646},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.33270031213760376},{"id":"https://openalex.org/C184720557","wikidata":"https://www.wikidata.org/wiki/Q7825049","display_name":"Topology (electrical circuits)","level":2,"score":0.3306516408920288},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.29948461055755615},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.25520551204681396},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.22789159417152405},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.19243022799491882},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.12162622809410095},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/tit.2011.2168896","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tit.2011.2168896","pdf_url":null,"source":{"id":"https://openalex.org/S4502562","display_name":"IEEE Transactions on Information Theory","issn_l":"0018-9448","issn":["0018-9448","1557-9654"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Information Theory","raw_type":"journal-article"},{"id":"pmh:oai:infoscience.epfl.ch:178039","is_oa":true,"landing_page_url":"http://infoscience.epfl.ch/record/178039","pdf_url":null,"source":{"id":"https://openalex.org/S4306400487","display_name":"Infoscience (Ecole Polytechnique F\u00e9d\u00e9rale de Lausanne)","issn_l":null,"issn":null,"is_oa":true,"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":"","raw_type":"Text"}],"best_oa_location":{"id":"pmh:oai:infoscience.epfl.ch:178039","is_oa":true,"landing_page_url":"http://infoscience.epfl.ch/record/178039","pdf_url":null,"source":{"id":"https://openalex.org/S4306400487","display_name":"Infoscience (Ecole Polytechnique F\u00e9d\u00e9rale de Lausanne)","issn_l":null,"issn":null,"is_oa":true,"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":"","raw_type":"Text"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":29,"referenced_works":["https://openalex.org/W1544340145","https://openalex.org/W1683834415","https://openalex.org/W2015853863","https://openalex.org/W2030546921","https://openalex.org/W2031545685","https://openalex.org/W2074120933","https://openalex.org/W2082422319","https://openalex.org/W2096093234","https://openalex.org/W2107244732","https://openalex.org/W2116141601","https://openalex.org/W2127106339","https://openalex.org/W2129766733","https://openalex.org/W2136040471","https://openalex.org/W2138293524","https://openalex.org/W2143354557","https://openalex.org/W2143927285","https://openalex.org/W2146479786","https://openalex.org/W2151795416","https://openalex.org/W2158815787","https://openalex.org/W2160800591","https://openalex.org/W2165170970","https://openalex.org/W2541204438","https://openalex.org/W2798333393","https://openalex.org/W3102047671","https://openalex.org/W3103381759","https://openalex.org/W3105113266","https://openalex.org/W3111166378","https://openalex.org/W3112681748","https://openalex.org/W3128611524"],"related_works":["https://openalex.org/W3141240674","https://openalex.org/W1931943713","https://openalex.org/W4313886786","https://openalex.org/W4365807906","https://openalex.org/W301676527","https://openalex.org/W2744170735","https://openalex.org/W2157864637","https://openalex.org/W4223416141","https://openalex.org/W2116541631","https://openalex.org/W2167568384"],"abstract_inverted_index":{"In":[0,129],"order":[1],"to":[2,49],"exploit":[3],"the":[4,18,22,29,70,83,94,112,117,122,125,132,135,138,145,148,151,159,173,179,196,204,216,231,247],"full":[5],"multiplexing":[6],"gain":[7],"of":[8,31,60,64,111,121,124,134,137,150,178,198,208,218,246],"multi-antenna":[9,51],"multi-user":[10],"downlink":[11,140],"schemes,":[12],"accurate":[13],"channel":[14,34,45,72,80,95,127,141,255],"state":[15,35,46,96,110,256],"information":[16,36,47,56,97],"at":[17,21,230],"transmitter":[19],"(i.e.,":[20,69],"base":[23,52],"station)":[24],"is":[25,156],"required.":[26],"We":[27],"consider":[28],"design":[30],"a":[32,50,75,107,166,187,243],"closed-loop":[33],"feedback":[37,257],"scheme,":[38],"where":[39],"user":[40],"terminals":[41],"feed":[42],"back":[43],"their":[44],"simultaneously":[48],"station.":[53],"The":[54,234],"underlying":[55],"theoretic":[57],"problem":[58],"consists":[59],"lossy":[61],"source-channel":[62,85,102,184,192,210],"coding":[63,86,193,211],"multiple":[65],"independent":[66],"analog":[67,261],"sources":[68],"users'":[71],"coefficients)":[73],"over":[74],"Gaussian":[76],"multiple-input":[77],"multiple-output":[78],"multi-access":[79],"(MIMO-MAC).":[81],"Unlike":[82],"classical":[84],"setting,":[87],"this":[88,130],"application":[89],"requires":[90],"low":[91,239],"latency,":[92],"otherwise":[93],"would":[98],"be":[99,213],"outdated.":[100],"Hence,":[101],"codewords":[103],"can":[104,212],"span":[105],"only":[106],"single":[108],"fading":[109],"uplink":[113,126,248],"(feedback)":[114],"channel.":[115],"Furthermore,":[116],"transmitters":[118],"are":[119],"ignorant":[120],"realization":[123],"coefficients.":[128],"scenario,":[131],"scaling":[133,155],"maximum":[136],"estimated":[139],"mean-square":[142],"errors":[143],"with":[144,227,267],"SNR":[146,161,176,206],"dominates":[147],"performance":[149],"multiuser":[152],"downlink.":[153],"This":[154,170],"described":[157],"by":[158,215],"distortion":[160,175,205],"exponent,":[162],"previously":[163],"introduced":[164],"in":[165],"single-user":[167],"MIMO":[168],"setting.":[169],"paper":[171],"analyzes":[172],"max-min":[174],"exponent":[177,207],"MIMO-MAC":[180],"for":[181],"both":[182],"separated":[183,209],"coding,":[185],"and":[186,221,250],"particular":[188],"hybrid":[189],"digital-analog":[190],"joint":[191],"scheme.":[194],"For":[195],"case":[197],"single-antenna":[199],"users,":[200],"we":[201],"prove":[202],"that":[203],"achieved":[214],"concatenation":[217],"scalar":[219],"quantization":[220,266],"uncoded":[222],"quadrature-amplitude":[223],"modulation":[224],"(QAM)":[225],"transmission,":[226],"lattice":[228],"decoding":[229],"base-station":[232],"receiver.":[233],"resulting":[235],"scheme":[236],"has":[237],"very":[238],"encoding":[240],"latency":[241],"(only":[242],"few":[244],"symbols":[245],"slot)":[249],"generally":[251],"outperforms":[252],"currently":[253],"proposed":[254],"schemes":[258],"based":[259],"on":[260],"unquantized":[262],"transmission":[263],"or":[264],"vector":[265],"fixed":[268],"codebooks.":[269]},"counts_by_year":[{"year":2013,"cited_by_count":1}],"updated_date":"2026-04-04T16:13:02.066488","created_date":"2025-10-10T00:00:00"}