{"id":"https://openalex.org/W2794242421","doi":"https://doi.org/10.23919/wons.2018.8311671","title":"Pilot reduction techniques for sparse channel estimation in massive MIMO systems","display_name":"Pilot reduction techniques for sparse channel estimation in massive MIMO systems","publication_year":2018,"publication_date":"2018-02-01","ids":{"openalex":"https://openalex.org/W2794242421","doi":"https://doi.org/10.23919/wons.2018.8311671","mag":"2794242421"},"language":"en","primary_location":{"id":"doi:10.23919/wons.2018.8311671","is_oa":false,"landing_page_url":"https://doi.org/10.23919/wons.2018.8311671","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2018 14th Annual Conference on Wireless On-demand Network Systems and Services (WONS)","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/A5015463755","display_name":"Farzana Kulsoom","orcid":"https://orcid.org/0000-0002-0382-5724"},"institutions":[{"id":"https://openalex.org/I25217355","display_name":"University of Pavia","ror":"https://ror.org/00s6t1f81","country_code":"IT","type":"education","lineage":["https://openalex.org/I25217355"]}],"countries":["IT"],"is_corresponding":true,"raw_author_name":"Farzana Kulsoom","raw_affiliation_strings":["Department of Electrical, University of Pavia, Pavia, Italy"],"affiliations":[{"raw_affiliation_string":"Department of Electrical, University of Pavia, Pavia, Italy","institution_ids":["https://openalex.org/I25217355"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5004977749","display_name":"Anna Vizziello","orcid":"https://orcid.org/0000-0002-6378-141X"},"institutions":[{"id":"https://openalex.org/I25217355","display_name":"University of Pavia","ror":"https://ror.org/00s6t1f81","country_code":"IT","type":"education","lineage":["https://openalex.org/I25217355"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Anna Vizziello","raw_affiliation_strings":["Department of Electrical, University of Pavia, Pavia, Italy"],"affiliations":[{"raw_affiliation_string":"Department of Electrical, University of Pavia, Pavia, Italy","institution_ids":["https://openalex.org/I25217355"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5066122645","display_name":"Hassan Nazeer Chaudhry","orcid":"https://orcid.org/0000-0002-2307-0920"},"institutions":[{"id":"https://openalex.org/I93860229","display_name":"Politecnico di Milano","ror":"https://ror.org/01nffqt88","country_code":"IT","type":"education","lineage":["https://openalex.org/I93860229"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Hassan Nazeer Chaudhry","raw_affiliation_strings":["Department of Electrical, Information and Bioengineering Politecnico di Milano, Milano, Italy"],"affiliations":[{"raw_affiliation_string":"Department of Electrical, Information and Bioengineering Politecnico di Milano, Milano, Italy","institution_ids":["https://openalex.org/I93860229"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5039993994","display_name":"Pietro Savazzi","orcid":"https://orcid.org/0000-0003-0692-8566"},"institutions":[{"id":"https://openalex.org/I25217355","display_name":"University of Pavia","ror":"https://ror.org/00s6t1f81","country_code":"IT","type":"education","lineage":["https://openalex.org/I25217355"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Pietro Savazzi","raw_affiliation_strings":["Department of Electrical, University of Pavia, Pavia, Italy"],"affiliations":[{"raw_affiliation_string":"Department of Electrical, University of Pavia, Pavia, Italy","institution_ids":["https://openalex.org/I25217355"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5015463755"],"corresponding_institution_ids":["https://openalex.org/I25217355"],"apc_list":null,"apc_paid":null,"fwci":0.9013,"has_fulltext":false,"cited_by_count":12,"citation_normalized_percentile":{"value":0.75404589,"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":"111","last_page":"116"},"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/T10500","display_name":"Sparse and Compressive Sensing Techniques","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"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/T12791","display_name":"Full-Duplex Wireless Communications","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"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7096542119979858},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.7058040499687195},{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.620644748210907},{"id":"https://openalex.org/keywords/mimo-ofdm","display_name":"MIMO-OFDM","score":0.6204138994216919},{"id":"https://openalex.org/keywords/compressed-sensing","display_name":"Compressed sensing","score":0.5443964600563049},{"id":"https://openalex.org/keywords/beamforming","display_name":"Beamforming","score":0.542643666267395},{"id":"https://openalex.org/keywords/greedy-algorithm","display_name":"Greedy algorithm","score":0.5233156681060791},{"id":"https://openalex.org/keywords/robustness","display_name":"Robustness (evolution)","score":0.5209487676620483},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.5096588134765625},{"id":"https://openalex.org/keywords/overhead","display_name":"Overhead (engineering)","score":0.498734712600708},{"id":"https://openalex.org/keywords/fading","display_name":"Fading","score":0.4904129207134247},{"id":"https://openalex.org/keywords/multipath-propagation","display_name":"Multipath propagation","score":0.4804896414279938},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.45196446776390076},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4255698025226593},{"id":"https://openalex.org/keywords/decoding-methods","display_name":"Decoding methods","score":0.2627526521682739},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.19487187266349792}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7096542119979858},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.7058040499687195},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.620644748210907},{"id":"https://openalex.org/C130946814","wikidata":"https://www.wikidata.org/wiki/Q5988271","display_name":"MIMO-OFDM","level":4,"score":0.6204138994216919},{"id":"https://openalex.org/C124851039","wikidata":"https://www.wikidata.org/wiki/Q2665459","display_name":"Compressed sensing","level":2,"score":0.5443964600563049},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.542643666267395},{"id":"https://openalex.org/C51823790","wikidata":"https://www.wikidata.org/wiki/Q504353","display_name":"Greedy algorithm","level":2,"score":0.5233156681060791},{"id":"https://openalex.org/C63479239","wikidata":"https://www.wikidata.org/wiki/Q7353546","display_name":"Robustness (evolution)","level":3,"score":0.5209487676620483},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.5096588134765625},{"id":"https://openalex.org/C2779960059","wikidata":"https://www.wikidata.org/wiki/Q7113681","display_name":"Overhead (engineering)","level":2,"score":0.498734712600708},{"id":"https://openalex.org/C81978471","wikidata":"https://www.wikidata.org/wiki/Q1196572","display_name":"Fading","level":3,"score":0.4904129207134247},{"id":"https://openalex.org/C161218011","wikidata":"https://www.wikidata.org/wiki/Q11827794","display_name":"Multipath propagation","level":3,"score":0.4804896414279938},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.45196446776390076},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4255698025226593},{"id":"https://openalex.org/C57273362","wikidata":"https://www.wikidata.org/wiki/Q576722","display_name":"Decoding methods","level":2,"score":0.2627526521682739},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.19487187266349792},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0},{"id":"https://openalex.org/C104317684","wikidata":"https://www.wikidata.org/wiki/Q7187","display_name":"Gene","level":2,"score":0.0},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.0},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.23919/wons.2018.8311671","is_oa":false,"landing_page_url":"https://doi.org/10.23919/wons.2018.8311671","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2018 14th Annual Conference on Wireless On-demand Network Systems and Services (WONS)","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":21,"referenced_works":["https://openalex.org/W1815093352","https://openalex.org/W1977520307","https://openalex.org/W2046658845","https://openalex.org/W2053521124","https://openalex.org/W2065321782","https://openalex.org/W2075856645","https://openalex.org/W2119667497","https://openalex.org/W2120549790","https://openalex.org/W2124662472","https://openalex.org/W2128513990","https://openalex.org/W2141682101","https://openalex.org/W2160979406","https://openalex.org/W2184621031","https://openalex.org/W2289917018","https://openalex.org/W2291665038","https://openalex.org/W2296616510","https://openalex.org/W2466322703","https://openalex.org/W2483702784","https://openalex.org/W2963322354","https://openalex.org/W3106282754","https://openalex.org/W4250955649"],"related_works":["https://openalex.org/W3183948672","https://openalex.org/W3173606202","https://openalex.org/W3110381201","https://openalex.org/W1531601525","https://openalex.org/W2379256376","https://openalex.org/W2107703637","https://openalex.org/W2381127329","https://openalex.org/W3015194228","https://openalex.org/W1559987689","https://openalex.org/W2146460095"],"abstract_inverted_index":{"The":[0,73,150],"current":[1],"high":[2],"gain":[3],"frequency":[4],"division":[5],"duplex":[6],"(FDD)":[7],"Massive":[8],"multiple-input,":[9],"multiple-output":[10],"(MIMO)":[11],"systems":[12,106],"pose":[13],"several":[14,116],"challenges":[15],"to":[16,54,66,92,111,119],"carry":[17],"out":[18],"the":[19,39,44,57,67,71,81,94,123,127,138,158,162],"downlink":[20,23],"beamforming.":[21],"Specifically,":[22],"beamforming":[24],"requires":[25],"a":[26],"channel":[27,76],"estimation":[28],"that":[29,107,134],"usually":[30],"needs":[31],"long":[32],"training":[33,148],"and":[34,90,114,145],"feedback":[35],"overhead,":[36],"scaling":[37],"with":[38,126,142,161],"number":[40],"of":[41,70],"antennas":[42],"at":[43],"base":[45],"station":[46],"(BS).":[47],"We":[48,97],"exploit":[49],"compressive":[50],"sensing":[51],"(CS)":[52],"techniques":[53],"accurately":[55],"estimate":[56,93],"channel,":[58],"while":[59],"assuring":[60],"overhead":[61],"reduction":[62],"which":[63,85],"is":[64,78,86,157],"proportional":[65],"sparsity":[68],"level":[69],"channel.":[72],"sparse":[74],"virtual":[75],"representation":[77],"obtained":[79],"through":[80],"proposed":[82,128],"dictionary":[83,129],"design,":[84],"more":[87,109],"flexible,":[88],"robust":[89],"able":[91],"cell":[95],"characteristics.":[96],"specifically":[98],"focus":[99],"on":[100],"massive":[101],"MIMO-Orthogonal":[102],"Frequency-Division":[103],"Multiplexing":[104],"(OFDM)":[105],"show":[108],"robustness":[110],"multipath":[112],"fading,":[113],"analyze":[115],"CS":[117],"algorithms":[118],"select":[120],"among":[121],"them":[122],"best":[124,163],"technique":[125,156],"design.":[130],"Numerical":[131],"results":[132],"demonstrate":[133],"greedy":[135,159],"solutions":[136],"approach":[137],"basic":[139],"pursuit":[140,154],"bound":[141],"lower":[143],"complexity":[144,165],"consequent":[146],"shorter":[147],"period.":[149],"normalized":[151],"hard":[152],"thresholding":[153],"(NHTP)":[155],"algorithm":[160],"performance":[164],"trade-off.":[166]},"counts_by_year":[{"year":2024,"cited_by_count":3},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":2},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}