{"id":"https://openalex.org/W4417282490","doi":"https://doi.org/10.1109/pimrc62392.2025.11274570","title":"Near-Field Channel Estimation with ELAA Modular Arrays Under Hardware Impairments","display_name":"Near-Field Channel Estimation with ELAA Modular Arrays Under Hardware Impairments","publication_year":2025,"publication_date":"2025-09-01","ids":{"openalex":"https://openalex.org/W4417282490","doi":"https://doi.org/10.1109/pimrc62392.2025.11274570"},"language":null,"primary_location":{"id":"doi:10.1109/pimrc62392.2025.11274570","is_oa":false,"landing_page_url":"https://doi.org/10.1109/pimrc62392.2025.11274570","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2025 IEEE 36th International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)","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/A5030697206","display_name":"\u00d6zlem Tu\u011ffe Demir","orcid":"https://orcid.org/0000-0001-9059-2799"},"institutions":[{"id":"https://openalex.org/I13236232","display_name":"TOBB University of Economics and Technology","ror":"https://ror.org/03ewx7v96","country_code":"TR","type":"education","lineage":["https://openalex.org/I13236232"]}],"countries":["TR"],"is_corresponding":true,"raw_author_name":"\u00d6zlem Tu\u011ffe Demir","raw_affiliation_strings":["TOBB University of Economics and Technology,Department of Electrical-Electronics Engineering,Ankara,T&#x00FC;rkiye"],"affiliations":[{"raw_affiliation_string":"TOBB University of Economics and Technology,Department of Electrical-Electronics Engineering,Ankara,T&#x00FC;rkiye","institution_ids":["https://openalex.org/I13236232"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5062293532","display_name":"Emil Bj\u00f6rnson","orcid":"https://orcid.org/0000-0002-5954-434X"},"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":"Emil Bj\u00f6rnson","raw_affiliation_strings":["KTH Royal Institute of Technology,Department of Computer Science,Stockholm,Sweden"],"affiliations":[{"raw_affiliation_string":"KTH Royal Institute of Technology,Department of Computer Science,Stockholm,Sweden","institution_ids":["https://openalex.org/I86987016"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5030697206"],"corresponding_institution_ids":["https://openalex.org/I13236232"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.29103907,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"6"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12450","display_name":"Radio Astronomy Observations and Technology","score":0.37450000643730164,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T12450","display_name":"Radio Astronomy Observations and Technology","score":0.37450000643730164,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10931","display_name":"Direction-of-Arrival Estimation Techniques","score":0.19429999589920044,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"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/T11851","display_name":"Electromagnetic Compatibility and Measurements","score":0.14149999618530273,"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/modular-design","display_name":"Modular design","score":0.6687999963760376},{"id":"https://openalex.org/keywords/estimator","display_name":"Estimator","score":0.6399000287055969},{"id":"https://openalex.org/keywords/baseband","display_name":"Baseband","score":0.6284999847412109},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5759999752044678},{"id":"https://openalex.org/keywords/noise","display_name":"Noise (video)","score":0.47929999232292175},{"id":"https://openalex.org/keywords/discrete-fourier-transform","display_name":"Discrete Fourier transform (general)","score":0.4244999885559082},{"id":"https://openalex.org/keywords/narrowband","display_name":"Narrowband","score":0.3984000086784363},{"id":"https://openalex.org/keywords/exploit","display_name":"Exploit","score":0.3982999920845032},{"id":"https://openalex.org/keywords/masking","display_name":"Masking (illustration)","score":0.37119999527931213}],"concepts":[{"id":"https://openalex.org/C101468663","wikidata":"https://www.wikidata.org/wiki/Q1620158","display_name":"Modular design","level":2,"score":0.6687999963760376},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6460999846458435},{"id":"https://openalex.org/C185429906","wikidata":"https://www.wikidata.org/wiki/Q1130160","display_name":"Estimator","level":2,"score":0.6399000287055969},{"id":"https://openalex.org/C9390403","wikidata":"https://www.wikidata.org/wiki/Q3966","display_name":"Computer hardware","level":1,"score":0.6381000280380249},{"id":"https://openalex.org/C65165936","wikidata":"https://www.wikidata.org/wiki/Q575784","display_name":"Baseband","level":3,"score":0.6284999847412109},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5759999752044678},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.47929999232292175},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.4648999869823456},{"id":"https://openalex.org/C57733114","wikidata":"https://www.wikidata.org/wiki/Q1006032","display_name":"Discrete Fourier transform (general)","level":5,"score":0.4244999885559082},{"id":"https://openalex.org/C2776096036","wikidata":"https://www.wikidata.org/wiki/Q1140483","display_name":"Narrowband","level":2,"score":0.3984000086784363},{"id":"https://openalex.org/C165696696","wikidata":"https://www.wikidata.org/wiki/Q11287","display_name":"Exploit","level":2,"score":0.3982999920845032},{"id":"https://openalex.org/C2777402240","wikidata":"https://www.wikidata.org/wiki/Q6783436","display_name":"Masking (illustration)","level":2,"score":0.37119999527931213},{"id":"https://openalex.org/C7720470","wikidata":"https://www.wikidata.org/wiki/Q954187","display_name":"Transceiver","level":3,"score":0.36309999227523804},{"id":"https://openalex.org/C17137986","wikidata":"https://www.wikidata.org/wiki/Q215067","display_name":"Orthogonality","level":2,"score":0.34310001134872437},{"id":"https://openalex.org/C21822782","wikidata":"https://www.wikidata.org/wiki/Q131214","display_name":"Antenna (radio)","level":2,"score":0.3424000144004822},{"id":"https://openalex.org/C194257627","wikidata":"https://www.wikidata.org/wiki/Q211554","display_name":"Amplifier","level":3,"score":0.3384999930858612},{"id":"https://openalex.org/C13944312","wikidata":"https://www.wikidata.org/wiki/Q7512748","display_name":"Signal-to-noise ratio (imaging)","level":2,"score":0.32339999079704285},{"id":"https://openalex.org/C509933004","wikidata":"https://www.wikidata.org/wiki/Q194163","display_name":"Broadband","level":2,"score":0.3066999912261963},{"id":"https://openalex.org/C3020199158","wikidata":"https://www.wikidata.org/wiki/Q210521","display_name":"High resolution","level":2,"score":0.30640000104904175},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.3043999969959259},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.2818000018596649},{"id":"https://openalex.org/C113775141","wikidata":"https://www.wikidata.org/wiki/Q428691","display_name":"Computer engineering","level":1,"score":0.2808000147342682},{"id":"https://openalex.org/C2781089630","wikidata":"https://www.wikidata.org/wiki/Q21856745","display_name":"Realization (probability)","level":2,"score":0.27709999680519104},{"id":"https://openalex.org/C167928553","wikidata":"https://www.wikidata.org/wiki/Q1376021","display_name":"Estimation theory","level":2,"score":0.27230000495910645},{"id":"https://openalex.org/C9936470","wikidata":"https://www.wikidata.org/wiki/Q6510405","display_name":"Least-squares function approximation","level":3,"score":0.26499998569488525},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.26440000534057617},{"id":"https://openalex.org/C165064840","wikidata":"https://www.wikidata.org/wiki/Q1321061","display_name":"Matching (statistics)","level":2,"score":0.2614000141620636}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/pimrc62392.2025.11274570","is_oa":false,"landing_page_url":"https://doi.org/10.1109/pimrc62392.2025.11274570","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2025 IEEE 36th International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)","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":14,"referenced_works":["https://openalex.org/W2040627349","https://openalex.org/W2320703891","https://openalex.org/W2735938380","https://openalex.org/W2902245954","https://openalex.org/W2969885757","https://openalex.org/W3004579445","https://openalex.org/W3006557588","https://openalex.org/W3084194173","https://openalex.org/W3193181629","https://openalex.org/W4226370247","https://openalex.org/W4367186067","https://openalex.org/W4390961667","https://openalex.org/W4396534969","https://openalex.org/W4417438583"],"related_works":[],"abstract_inverted_index":{"Extremely":[0],"large-scale":[1],"antenna":[2],"arrays":[3],"(ELAAs)":[4],"enable":[5],"high":[6],"spatial":[7],"resolution":[8],"and":[9,64,86],"multiplexing,":[10],"especially":[11],"for":[12],"user":[13],"equipments":[14],"(UEs)":[15],"in":[16,50],"the":[17,61,95,100],"radiative":[18],"near-field.":[19],"To":[20],"reduce":[21],"hardware":[22,48],"cost,":[23],"modular":[24,52],"ELAA":[25],"architectures":[26],"with":[27],"distributed":[28],"baseband":[29],"units":[30],"(BBUs)":[31],"are":[32],"gaining":[33],"traction.":[34],"This":[35],"paper":[36],"addresses":[37],"near-field":[38,68],"line-of-sight":[39],"(LOS)":[40],"channel":[41],"estimation":[42,84],"under":[43],"low":[44],"noise":[45],"amplifier":[46],"(LNA)-induced":[47],"impairments":[49],"such":[51],"systems.":[53],"We":[54],"propose":[55],"computationally":[56],"efficient":[57],"estimators":[58],"that":[59,82,94],"exploit":[60],"array":[62],"geometry":[63],"constant-modulus":[65],"structure":[66],"of":[67],"LOS":[69],"channels,":[70],"including":[71],"a":[72],"novel":[73],"two-dimensional":[74],"(2D)":[75],"discrete":[76],"Fourier":[77],"transform":[78],"(DFT)":[79],"masking":[80],"technique":[81],"improves":[83],"accuracy":[85],"significantly":[87,98],"reduces":[88],"fronthaul":[89],"signaling.":[90],"Numerical":[91],"results":[92],"show":[93],"proposed":[96],"methods":[97],"outperform":[99],"conventional":[101],"least":[102],"squares":[103],"(LS)":[104],"method.":[105]},"counts_by_year":[],"updated_date":"2026-03-07T16:01:11.037858","created_date":"2025-12-12T00:00:00"}
