{"id":"https://openalex.org/W4408100330","doi":"https://doi.org/10.1109/lwc.2025.3547530","title":"Pilot-to-Data Power Ratio in RIS-Assisted Multiantenna Communication","display_name":"Pilot-to-Data Power Ratio in RIS-Assisted Multiantenna Communication","publication_year":2025,"publication_date":"2025-03-03","ids":{"openalex":"https://openalex.org/W4408100330","doi":"https://doi.org/10.1109/lwc.2025.3547530"},"language":"en","primary_location":{"id":"doi:10.1109/lwc.2025.3547530","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lwc.2025.3547530","pdf_url":null,"source":{"id":"https://openalex.org/S2500830676","display_name":"IEEE Wireless Communications Letters","issn_l":"2162-2337","issn":["2162-2337","2162-2345"],"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 Wireless Communications Letters","raw_type":"journal-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/A5020532895","display_name":"Masoud Sadeghian","orcid":"https://orcid.org/0000-0002-3254-9159"},"institutions":[{"id":"https://openalex.org/I170486558","display_name":"Pompeu Fabra University","ror":"https://ror.org/04n0g0b29","country_code":"ES","type":"education","lineage":["https://openalex.org/I170486558"]}],"countries":["ES"],"is_corresponding":true,"raw_author_name":"Masoud Sadeghian","raw_affiliation_strings":["Department of Engineering, University Pompeu Fabra, Barcelona, Spain","Department of Engineering, Univ. Pompeu Fabra, Barcelona, Spain"],"affiliations":[{"raw_affiliation_string":"Department of Engineering, University Pompeu Fabra, Barcelona, Spain","institution_ids":["https://openalex.org/I170486558"]},{"raw_affiliation_string":"Department of Engineering, Univ. Pompeu Fabra, Barcelona, Spain","institution_ids":["https://openalex.org/I170486558"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5078078596","display_name":"Angel Lozano","orcid":"https://orcid.org/0000-0003-3790-0494"},"institutions":[{"id":"https://openalex.org/I170486558","display_name":"Pompeu Fabra University","ror":"https://ror.org/04n0g0b29","country_code":"ES","type":"education","lineage":["https://openalex.org/I170486558"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Angel Lozano","raw_affiliation_strings":["Department of Engineering, University Pompeu Fabra, Barcelona, Spain","Department of Engineering, Univ. Pompeu Fabra, Barcelona, Spain"],"affiliations":[{"raw_affiliation_string":"Department of Engineering, University Pompeu Fabra, Barcelona, Spain","institution_ids":["https://openalex.org/I170486558"]},{"raw_affiliation_string":"Department of Engineering, Univ. Pompeu Fabra, Barcelona, Spain","institution_ids":["https://openalex.org/I170486558"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5016692893","display_name":"G\u00e1bor Fodor","orcid":"https://orcid.org/0000-0002-2289-3159"},"institutions":[{"id":"https://openalex.org/I86987016","display_name":"KTH Royal Institute of Technology","ror":"https://ror.org/026vcq606","country_code":"SE","type":"education","lineage":["https://openalex.org/I86987016"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Gabor Fodor","raw_affiliation_strings":["School of Electrical Engineering and Computer Science, KTH Royal Institute of Technology, Stockholm, Sweden"],"affiliations":[{"raw_affiliation_string":"School of Electrical Engineering and Computer Science, KTH Royal Institute of Technology, Stockholm, Sweden","institution_ids":["https://openalex.org/I86987016"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5020532895"],"corresponding_institution_ids":["https://openalex.org/I170486558"],"apc_list":null,"apc_paid":null,"fwci":1.5579,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.79782308,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":95,"max":96},"biblio":{"volume":"14","issue":"5","first_page":"1506","last_page":"1510"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11932","display_name":"Wireless Body Area Networks","score":0.9872999787330627,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical 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/T11932","display_name":"Wireless Body Area Networks","score":0.9872999787330627,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical 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":0.9703999757766724,"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":0.955299973487854,"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/computer-science","display_name":"Computer science","score":0.5500940680503845},{"id":"https://openalex.org/keywords/signal-to-noise-ratio","display_name":"Signal-to-noise ratio (imaging)","score":0.5112667083740234},{"id":"https://openalex.org/keywords/power","display_name":"Power (physics)","score":0.41440072655677795},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.16431444883346558},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.145871102809906}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5500940680503845},{"id":"https://openalex.org/C13944312","wikidata":"https://www.wikidata.org/wiki/Q7512748","display_name":"Signal-to-noise ratio (imaging)","level":2,"score":0.5112667083740234},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.41440072655677795},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.16431444883346558},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.145871102809906},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/lwc.2025.3547530","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lwc.2025.3547530","pdf_url":null,"source":{"id":"https://openalex.org/S2500830676","display_name":"IEEE Wireless Communications Letters","issn_l":"2162-2337","issn":["2162-2337","2162-2345"],"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 Wireless Communications Letters","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Affordable and clean energy","score":0.6200000047683716,"id":"https://metadata.un.org/sdg/7"}],"awards":[{"id":"https://openalex.org/G8394469382","display_name":null,"funder_award_id":"MSCA-ITN-METAWIRELESS Grant Agreement 956256","funder_id":"https://openalex.org/F4320332999","funder_display_name":"Horizon 2020 Framework Programme"}],"funders":[{"id":"https://openalex.org/F4320322121","display_name":"Instituci\u00f3 Catalana de Recerca i Estudis Avan\u00e7ats","ror":"https://ror.org/0371hy230"},{"id":"https://openalex.org/F4320332999","display_name":"Horizon 2020 Framework Programme","ror":"https://ror.org/00k4n6c32"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":20,"referenced_works":["https://openalex.org/W1557286734","https://openalex.org/W2171827816","https://openalex.org/W2543542977","https://openalex.org/W2963355537","https://openalex.org/W2968810373","https://openalex.org/W3011747750","https://openalex.org/W3012004564","https://openalex.org/W3017311957","https://openalex.org/W3021564798","https://openalex.org/W3039402952","https://openalex.org/W3084194173","https://openalex.org/W3128409631","https://openalex.org/W3130742146","https://openalex.org/W3167080576","https://openalex.org/W4211120851","https://openalex.org/W4223635971","https://openalex.org/W4312763750","https://openalex.org/W4380520366","https://openalex.org/W4386320463","https://openalex.org/W4399405741"],"related_works":["https://openalex.org/W4391375266","https://openalex.org/W2899084033","https://openalex.org/W2748952813","https://openalex.org/W2390279801","https://openalex.org/W4391913857","https://openalex.org/W2358668433","https://openalex.org/W4396701345","https://openalex.org/W2376932109","https://openalex.org/W2001405890","https://openalex.org/W4396696052"],"abstract_inverted_index":{"The":[0],"optimization":[1,27,57],"of":[2,28,40,74,77,84,90,103,129],"the":[3,22,26,29,38,41,59,72,75,78,88,92,110,127,133],"pilot-to-data":[4],"power":[5],"ratio":[6],"(PDPR)":[7],"is":[8,61,121],"a":[9,64,81,85,100,118],"recourse":[10],"that":[11],"helps":[12],"wireless":[13],"systems":[14],"to":[15,96],"acquire":[16],"channel":[17,134],"state":[18],"information":[19],"while":[20],"minimizing":[21],"pilot":[23],"overhead.":[24],"While":[25],"PDPR":[30,42,93],"in":[31,43],"cellular":[32],"networks":[33,48],"has":[34,49],"been":[35,51],"studied":[36],"extensively,":[37],"effect":[39],"reconfigurable":[44],"intelligence":[45],"surface":[46],"(RIS)-assisted":[47],"hardly":[50],"examined.":[52],"This":[53],"letter":[54],"tackles":[55],"this":[56],"when":[58],"communication":[60],"assisted":[62],"by":[63],"RIS":[65,130],"whose":[66],"phase":[67],"shifts":[68],"are":[69,94],"adjusted":[70],"on":[71],"basis":[73],"statistics":[76],"channels.":[79],"For":[80],"setting":[82],"representative":[83],"macrocellular":[86],"deployment,":[87],"benefits":[89],"optimizing":[91],"seen":[95],"be":[97],"significant":[98],"over":[99],"broad":[101],"range":[102],"operating":[104],"conditions.":[105],"These":[106],"benefits,":[107],"demonstrated":[108],"through":[109],"ergodic":[111],"minimum":[112],"mean":[113],"squared":[114],"error,":[115],"for":[116],"which":[117],"closed-form":[119],"solution":[120],"derived,":[122],"become":[123],"more":[124],"pronounced":[125],"as":[126],"number":[128],"elements":[131],"and/or":[132],"coherence":[135],"grow":[136],"large.":[137]},"counts_by_year":[{"year":2025,"cited_by_count":2}],"updated_date":"2025-12-28T23:10:05.387466","created_date":"2025-10-10T00:00:00"}
