{"id":"https://openalex.org/W2889482795","doi":"https://doi.org/10.1109/spawc.2018.8445872","title":"How to Achieve Massive MIMO Gains in FDD Systems?","display_name":"How to Achieve Massive MIMO Gains in FDD Systems?","publication_year":2018,"publication_date":"2018-06-01","ids":{"openalex":"https://openalex.org/W2889482795","doi":"https://doi.org/10.1109/spawc.2018.8445872","mag":"2889482795"},"language":"en","primary_location":{"id":"doi:10.1109/spawc.2018.8445872","is_oa":false,"landing_page_url":"https://doi.org/10.1109/spawc.2018.8445872","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2018 IEEE 19th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)","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/A5033690165","display_name":"Mahdi Barzegar Khalilsarai","orcid":"https://orcid.org/0000-0003-0579-0200"},"institutions":[{"id":"https://openalex.org/I4577782","display_name":"Technische Universit\u00e4t Berlin","ror":"https://ror.org/03v4gjf40","country_code":"DE","type":"education","lineage":["https://openalex.org/I4577782"]}],"countries":["DE"],"is_corresponding":true,"raw_author_name":"Mahdi Barzegar Khalilsarai","raw_affiliation_strings":["Communications and Information Theory Group, Technische Universit\u00e4t, Berlin"],"affiliations":[{"raw_affiliation_string":"Communications and Information Theory Group, Technische Universit\u00e4t, Berlin","institution_ids":["https://openalex.org/I4577782"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5034537543","display_name":"Saeid Haghighatshoar","orcid":"https://orcid.org/0000-0002-9063-3105"},"institutions":[{"id":"https://openalex.org/I4577782","display_name":"Technische Universit\u00e4t Berlin","ror":"https://ror.org/03v4gjf40","country_code":"DE","type":"education","lineage":["https://openalex.org/I4577782"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Saeid Haghighatshoar","raw_affiliation_strings":["Communications and Information Theory Group, Technische Universit\u00e4t, Berlin"],"affiliations":[{"raw_affiliation_string":"Communications and Information Theory Group, Technische Universit\u00e4t, Berlin","institution_ids":["https://openalex.org/I4577782"]}]},{"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/I4577782","display_name":"Technische Universit\u00e4t Berlin","ror":"https://ror.org/03v4gjf40","country_code":"DE","type":"education","lineage":["https://openalex.org/I4577782"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Giuseppe Caire","raw_affiliation_strings":["Communications and Information Theory Group, Technische Universit\u00e4t, Berlin"],"affiliations":[{"raw_affiliation_string":"Communications and Information Theory Group, Technische Universit\u00e4t, Berlin","institution_ids":["https://openalex.org/I4577782"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5033690165"],"corresponding_institution_ids":["https://openalex.org/I4577782"],"apc_list":null,"apc_paid":null,"fwci":0.2575,"has_fulltext":false,"cited_by_count":5,"citation_normalized_percentile":{"value":0.570892,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","score":1.0,"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":1.0,"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/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.9979000091552734,"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/T10936","display_name":"Millimeter-Wave Propagation and Modeling","score":0.9973999857902527,"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":0.6912881731987},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.625174880027771},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.3749315142631531},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.363701194524765},{"id":"https://openalex.org/keywords/beamforming","display_name":"Beamforming","score":0.13456681370735168}],"concepts":[{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.6912881731987},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.625174880027771},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.3749315142631531},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.363701194524765},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.13456681370735168}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/spawc.2018.8445872","is_oa":false,"landing_page_url":"https://doi.org/10.1109/spawc.2018.8445872","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2018 IEEE 19th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)","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/W797708412","https://openalex.org/W1409984952","https://openalex.org/W1938636034","https://openalex.org/W2015301486","https://openalex.org/W2099721949","https://openalex.org/W2120549790","https://openalex.org/W2141682101","https://openalex.org/W2514021491","https://openalex.org/W2539198515","https://openalex.org/W2963073141","https://openalex.org/W2963287650"],"related_works":["https://openalex.org/W2748952813","https://openalex.org/W2390279801","https://openalex.org/W2358668433","https://openalex.org/W2376932109","https://openalex.org/W2001405890","https://openalex.org/W2382290278","https://openalex.org/W2478288626","https://openalex.org/W4391913857","https://openalex.org/W2350741829","https://openalex.org/W2530322880"],"abstract_inverted_index":{"Massive":[0],"MIMO":[1,45],"is":[2,124,163,234,281,291],"a":[3,9,142,208,220],"powerful":[4],"multiuser/multiantenna":[5],"technology":[6],"that":[7,54,189,213,224,265,277],"exploits":[8,46],"very":[10,125,147],"large":[11,38,77,126],"number":[12],"of":[13,23,79,86,194,266,301,306,312],"antennas":[14,30],"at":[15,61,252,303,309],"the":[16,21,24,55,62,66,73,76,116,131,178,183,186,190,217,244,253,267,278,295,304,310,313,318],"base":[17,28,63,254],"station":[18,29,64,255],"side":[19],"and":[20,31,40,50,97,101,122,154,172],"knowledge":[22],"channel":[25,51,56,92,179,197,218,296],"matrix":[26,57,181],"between":[27,150],"multiple":[32],"users":[33],"in":[34,107,127,157,216,219],"order":[35,108,192],"to":[36,109,145,176,185,236,293],"achieve":[37,110,146],"beamforming":[39],"multiplexing":[41,113,152],"gain.":[42,114],"Classical":[43],"massive":[44,128,159],"Time-Division":[47],"Duplexing":[48,89],"(TDD)":[49],"reciprocity,":[52],"such":[53,188,223],"can":[58,198,249],"be":[59,199,250],"learned":[60,201],"from":[65,182,204],"incoming":[67],"uplink":[68,102,184,205],"pilot":[69,231],"signals":[70],"sent":[71],"by":[72,119,317],"users.":[74],"However,":[75],"majority":[78],"cellular":[80],"networks":[81],"deployed":[82],"today":[83],"make":[84],"use":[85],"Frequency":[87],"Division":[88],"(FDD)":[90],"where":[91],"reciprocity":[93],"does":[94],"not":[95],"hold":[96],"explicit":[98,120],"downlink":[99,196,230],"probing":[100,121],"CSI":[103],"feedback":[104,123],"are":[105,133],"required":[106],"some":[111],"spatial":[112,151],"Unfortunately,":[115],"overhead":[117,156,228],"incurred":[118],"MIMO,":[129],"since":[130,289],"channels":[132,246],"high-dimensional":[134],"random":[135],"vectors.":[136],"In":[137],"this":[138],"paper,":[139],"we":[140],"present":[141],"new":[143],"approach":[144,162],"competitive":[148],"tradeoff":[149],"gain":[153],"probing/feedback":[155],"FDD":[158],"MIMO.":[160],"Our":[161,274],"based":[164,272],"on":[165],"two":[166],"novel":[167,209],"concepts:":[168],"1)":[169],"an":[170,238],"efficient":[171],"mathematically":[173],"rigorous":[174],"technique":[175],"extrapolate":[177],"covariance":[180],"downlink,":[187],"second":[191],"statistics":[193],"each":[195],"accurately":[200],"for":[202,225,242],"free":[203],"pilots;":[206],"2)":[207],"\u201csparsifying":[210],"precoding\u201d":[211],"approach,":[212],"introduces":[214],"sparsity":[215,240,315],"controlled":[221],"form,":[222],"any":[226],"assigned":[227],"(i.e.,":[229,308],"dimension)":[232],"it":[233,290],"possible":[235],"set":[237],"optimal":[239],"level":[241],"which":[243],"\u201ceffective\u201d":[245],"after":[247],"sparsification":[248],"estimated":[251],"with":[256,264],"low":[257],"mean-square":[258],"error.":[259],"We":[260],"compare":[261],"our":[262],"method":[263,280],"state-of-the-art":[268],"compressed":[269,286],"sensing":[270,287],"(CS)":[271],"method.":[273],"results":[275],"show":[276],"proposed":[279],"much":[282],"more":[283],"robust":[284],"than":[285],"methods,":[288],"able":[292],"\u201cshape":[294],"sparsity\u201d":[297],"as":[298],"desired,":[299],"instead":[300],"being":[302],"mercy":[305,311],"nature":[307],"natural":[314],"induced":[316],"nronaaation":[319],"environment).":[320]},"counts_by_year":[{"year":2024,"cited_by_count":2},{"year":2022,"cited_by_count":1},{"year":2020,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
