{"id":"https://openalex.org/W7204207487","doi":"https://doi.org/10.1109/lcomm.2026.3727101","title":"Finite-Pilot Channel-Estimation Friendliness: A New Building Wireless Performance Metric for Indoor MIMO Systems","display_name":"Finite-Pilot Channel-Estimation Friendliness: A New Building Wireless Performance Metric for Indoor MIMO Systems","publication_year":2026,"publication_date":"2026-01-01","ids":{"openalex":"https://openalex.org/W7204207487","doi":"https://doi.org/10.1109/lcomm.2026.3727101"},"language":"en","primary_location":{"id":"doi:10.1109/lcomm.2026.3727101","doi":"https://doi.org/10.1109/lcomm.2026.3727101","is_oa":true,"landing_page_url":"https://doi.org/10.1109/lcomm.2026.3727101","pdf_url":null,"source":{"id":"https://openalex.org/S147316732","display_name":"IEEE Communications Letters","issn_l":"1089-7798","issn":["1089-7798","1558-2558","2373-7891"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-a","jufo-2","norway-1","poland-100","russia-white-list-1"],"host_organization":"https://openalex.org/P4310316002","host_organization_name":"IEEE Communications Society","host_organization_lineage":["https://openalex.org/P4310316002","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Communications Society","Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Communications Letters","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"hybrid","oa_url":"https://doi.org/10.1109/lcomm.2026.3727101","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5011921825","display_name":"C. X. Yue","orcid":"https://orcid.org/0009-0002-1847-2260","observed_orcids":["https://orcid.org/0009-0002-1847-2260","https://orcid.org/0009-0001-9038-0718","https://orcid.org/0000-0001-6783-7647","https://orcid.org/0000-0002-8919-2197"]},"institutions":[{"id":"https://openalex.org/I4401041622","display_name":"Chengdu Technological University","ror":"https://ror.org/04713ex73","country_code":"CN","type":"education","lineage":["https://openalex.org/I4401041622"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Chengfang Yue","raw_affiliation_strings":["Chengdu Technological University"],"raw_orcid":"https://orcid.org/0009-0001-9038-0718","affiliations":[{"raw_affiliation_string":"Chengdu Technological University","institution_ids":["https://openalex.org/I4401041622"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5063183400","display_name":"Jieping Wu","orcid":"https://orcid.org/0000-0002-3999-2110","observed_orcids":["https://orcid.org/0000-0002-3999-2110"]},"institutions":[{"id":"https://openalex.org/I4401041622","display_name":"Chengdu Technological University","ror":"https://ror.org/04713ex73","country_code":"CN","type":"education","lineage":["https://openalex.org/I4401041622"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jieping Wu","raw_affiliation_strings":["Chengdu Technological University"],"raw_orcid":"https://orcid.org/0000-0002-3999-2110","affiliations":[{"raw_affiliation_string":"Chengdu Technological University","institution_ids":["https://openalex.org/I4401041622"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5138697977","display_name":"Yang Fu","orcid":"https://orcid.org/0009-0003-2034-1849","observed_orcids":["https://orcid.org/0009-0003-2034-1849"]},"institutions":[{"id":"https://openalex.org/I4401041622","display_name":"Chengdu Technological University","ror":"https://ror.org/04713ex73","country_code":"CN","type":"education","lineage":["https://openalex.org/I4401041622"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yang Fu","raw_affiliation_strings":["Chengdu Technological University"],"raw_orcid":"https://orcid.org/0009-0003-2034-1849","affiliations":[{"raw_affiliation_string":"Chengdu Technological University","institution_ids":["https://openalex.org/I4401041622"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I4401041622"],"apc_list":{"value":2645,"currency":"USD","value_usd":2645},"apc_paid":{"value":2645,"currency":"USD","value_usd":2645},"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.0,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"30","issue":null,"first_page":"3014","last_page":"3018"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10125","display_name":"Advanced Wireless Communication Techniques","score":0.8065999746322632,"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/T10125","display_name":"Advanced Wireless Communication Techniques","score":0.8065999746322632,"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":0.15530000627040863,"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/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.006800000090152025,"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-overhead","display_name":"channel state information overhead","score":0.828000009059906},{"id":"https://openalex.org/keywords/dominant-eigenvalue","display_name":"dominant eigenvalue","score":0.6159999966621399},{"id":"https://openalex.org/keywords/normalized-mean-square-error","display_name":"normalized mean square error","score":0.8209999799728394},{"id":"https://openalex.org/keywords/anisotropic-scattering","display_name":"anisotropic scattering","score":0.8410000205039978},{"id":"https://openalex.org/keywords/mimo-downlink","display_name":"MIMO downlink","score":0.6159999966621399}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7207000255584717},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.48399999737739563},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.48179998993873596},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.47530001401901245},{"id":"https://openalex.org/C176217482","wikidata":"https://www.wikidata.org/wiki/Q860554","display_name":"Metric (unit)","level":2,"score":0.44760000705718994},{"id":"https://openalex.org/C2780898871","wikidata":"https://www.wikidata.org/wiki/Q860554","display_name":"Performance metric","level":2,"score":0.34369999170303345},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.33880001306533813},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.3165000081062317},{"id":"https://openalex.org/C13944312","wikidata":"https://www.wikidata.org/wiki/Q7512748","display_name":"Signal-to-noise ratio (imaging)","level":2,"score":0.313400000333786},{"id":"https://openalex.org/C91330434","wikidata":"https://www.wikidata.org/wiki/Q738298","display_name":"Multi-user MIMO","level":4,"score":0.29649999737739563},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.27649998664855957},{"id":"https://openalex.org/C24590314","wikidata":"https://www.wikidata.org/wiki/Q336038","display_name":"Wireless sensor network","level":2,"score":0.2703000009059906},{"id":"https://openalex.org/C108037233","wikidata":"https://www.wikidata.org/wiki/Q11375","display_name":"Wireless network","level":3,"score":0.2637999951839447},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.26339998841285706}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/lcomm.2026.3727101","doi":"https://doi.org/10.1109/lcomm.2026.3727101","is_oa":true,"landing_page_url":"https://doi.org/10.1109/lcomm.2026.3727101","pdf_url":null,"source":{"id":"https://openalex.org/S147316732","display_name":"IEEE Communications Letters","issn_l":"1089-7798","issn":["1089-7798","1558-2558","2373-7891"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-a","jufo-2","norway-1","poland-100","russia-white-list-1"],"host_organization":"https://openalex.org/P4310316002","host_organization_name":"IEEE Communications Society","host_organization_lineage":["https://openalex.org/P4310316002","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Communications Society","Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Communications Letters","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.1109/lcomm.2026.3727101","doi":"https://doi.org/10.1109/lcomm.2026.3727101","is_oa":true,"landing_page_url":"https://doi.org/10.1109/lcomm.2026.3727101","pdf_url":null,"source":{"id":"https://openalex.org/S147316732","display_name":"IEEE Communications Letters","issn_l":"1089-7798","issn":["1089-7798","1558-2558","2373-7891"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-a","jufo-2","norway-1","poland-100","russia-white-list-1"],"host_organization":"https://openalex.org/P4310316002","host_organization_name":"IEEE Communications Society","host_organization_lineage":["https://openalex.org/P4310316002","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Communications Society","Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Communications Letters","raw_type":"journal-article"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":15,"referenced_works":["https://openalex.org/W2015301486","https://openalex.org/W2106929598","https://openalex.org/W2108256297","https://openalex.org/W2130134073","https://openalex.org/W3038327201","https://openalex.org/W3043158753","https://openalex.org/W3202059851","https://openalex.org/W3206076386","https://openalex.org/W4391216099","https://openalex.org/W4392693743","https://openalex.org/W4405488174","https://openalex.org/W4409991301","https://openalex.org/W7139078473","https://openalex.org/W7156282906","https://openalex.org/W7162066954"],"related_works":["https://openalex.org/W331487882","https://openalex.org/W2342901312","https://openalex.org/W7164942835","https://openalex.org/W7172346921","https://openalex.org/W2588950310","https://openalex.org/W7202211326","https://openalex.org/W2277338984","https://openalex.org/W7125652417","https://openalex.org/W7036709784","https://openalex.org/W222058467"],"abstract_inverted_index":{"Building":[0],"wireless":[1,12],"performance":[2],"(BWP)":[3],"evaluation":[4],"quantifies":[5,99],"how":[6],"layouts":[7],"and":[8,31,78,86,128,131,146,150],"materials":[9],"affect":[10],"indoor":[11,71],"systems":[13,49],"at":[14],"the":[15,35,87,100,117,121,125,144],"architectural":[16],"design":[17,157],"stage.":[18],"Existing":[19],"BWP":[20,62],"metrics":[21],"target":[22],"outcomes":[23],"such":[24],"as":[25,59],"received":[26],"power,":[27],"capacity,":[28],"delay":[29],"spread,":[30],"channel":[32,40],"hardening,":[33],"while":[34],"finite-pilot":[36,55,89],"cost":[37,102],"of":[38],"acquiring":[39],"state":[41],"information":[42],"(CSI)":[43],"in":[44],"practical":[45],"multiple-input":[46],"multiple-output":[47],"(MIMO)":[48],"remains":[50],"unexplored.":[51],"This":[52],"letter":[53],"introduces":[54],"channel-estimation":[56],"(CE)":[57],"friendliness":[58],"a":[60,65,108,137,156],"new":[61],"metric.":[63],"Adopting":[64],"deliberately":[66],"tractable":[67],"low-rank":[68],"(rank-two":[69],"specular)":[70],"receive":[72,118],"covariance":[73,111],"with":[74],"line-of-sight,":[75],"dominant":[76,84],"wall-reflected,":[77],"diffuse":[79],"components,":[80],"we":[81],"derive":[82],"closed-form":[83],"eigenvalues":[85],"rank-constrained":[88],"normalized":[90],"mean-square":[91],"error":[92],"(NMSE).":[93],"The":[94],"minimum":[95],"training":[96],"dimension$T_{\\min,\\mathrm":[97],"{rc}}$then":[98],"pilot":[101],"induced":[103],"by":[104,116],"building-dependent":[105],"covariance.":[106],"Under":[107],"separable":[109],"transmit\u2013receive":[110],"this":[112],"dimension":[113],"is":[114],"set":[115],"covariance,":[119],"so":[120],"metric":[122],"applies":[123],"to":[124],"MIMO":[126],"downlink":[127],"its":[129],"single-stream":[130],"uplink-SIMO":[132],"instances.":[133],"Numerical":[134],"results,":[135],"including":[136],"physically":[138],"grounded":[139],"multi-cluster":[140],"anisotropic-scattering":[141],"extension,":[142],"validate":[143],"analysis":[145],"show":[147],"that":[148],"capacity-":[149],"channel-estimation-friendly":[151],"designs":[152],"are":[153],"generally":[154],"non-equivalent:":[155],"favoring":[158],"spatial":[159],"multiplexing":[160],"may":[161],"not":[162],"minimize":[163],"CSI":[164],"overhead.":[165]},"counts_by_year":[],"updated_date":"2026-11-08T12:12:28.789561","created_date":"2026-08-26T00:00:00"}