{"authors":[{"id":null,"fullName":"Sajad Daei","name":null,"surname":null,"rank":1,"pid":null},{"id":null,"fullName":"Amirreza Zamani","name":null,"surname":null,"rank":2,"pid":null},{"id":null,"fullName":"Saikat Chatterjee","name":null,"surname":null,"rank":3,"pid":null},{"id":null,"fullName":"Mikael Skoglund","name":null,"surname":null,"rank":4,"pid":null},{"id":null,"fullName":"Gábor Fodor 0001","name":null,"surname":null,"rank":5,"pid":null}],"openAccessColor":null,"publiclyFunded":false,"eoscIfGuidelines":null,"type":"publication","language":{"code":"und","label":"Undetermined"},"countries":null,"subjects":[{"subject":{"scheme":"keyword","value":"Signal Processing (eess.SP)"},"provenance":null},{"subject":{"scheme":"FOS","value":"0202 electrical engineering, electronic engineering, information engineering"},"provenance":null},{"subject":{"scheme":"keyword","value":"FOS: Electrical engineering, electronic engineering, information engineering"},"provenance":null},{"subject":{"scheme":"FOS","value":"02 engineering and technology"},"provenance":null},{"subject":{"scheme":"keyword","value":"Electrical Engineering and Systems Science - Signal Processing"},"provenance":null}],"mainTitle":"Near-Field ISAC in 6G: Addressing Phase Nonlinearity via Lifted Super-Resolution","subTitle":null,"descriptions":["Integrated sensing and communications (ISAC) is a promising component of 6G networks, fusing communication and radar technologies to facilitate new services. Additionally, the use of extremely large-scale antenna arrays (ELAA) at the ISAC common receiver not only facilitates terahertz-rate communication links but also significantly enhances the accuracy of target detection in radar applications. In practical scenarios, communication scatterers and radar targets often reside in close proximity to the ISAC receiver. This, combined with the use of ELAA, fundamentally alters the electromagnetic characteristics of wireless and radar channels, shifting from far-field planar-wave propagation to near-field spherical wave propagation. Under the far-field planar-wave model, the phase of the array response vector varies linearly with the antenna index. In contrast, in the near-field spherical wave model, this phase relationship becomes nonlinear. This shift presents a fundamental challenge: the widely-used Fourier analysis can no longer be directly applied for target detection and communication channel estimation at the ISAC common receiver. In this work, we propose a feasible solution to address this fundamental issue. Specifically, we demonstrate that there exists a high-dimensional space in which the phase nonlinearity can be expressed as linear. Leveraging this insight, we develop a lifted super-resolution framework that simultaneously performs communication channel estimation and extracts target parameters with high precision.","To appear in IEEE ICASSP 2025"],"publicationDate":"2025-04-06","publisher":"IEEE","embargoEndDate":"2024-10-01","sources":["Crossref","ICASSP 2025 - 2025 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)"],"formats":null,"contributors":null,"coverages":null,"bestAccessRight":{"code":"c_abf2","label":"OPEN","scheme":"http://vocabularies.coar-repositories.org/documentation/access_rights/"},"container":{"name":"ICASSP 2025 - 2025 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)","issnPrinted":null,"issnOnline":null,"issnLinking":null,"ep":"5","iss":null,"sp":"1","vol":null,"edition":null,"conferencePlace":null,"conferenceDate":null},"documentationUrls":null,"codeRepositoryUrl":null,"programmingLanguage":null,"contactPeople":null,"contactGroups":null,"tools":null,"size":null,"version":null,"geoLocations":null,"id":"doi_dedup___::bab7e184e34f6d4886ef7ebf451be059","originalIds":["10.1109/icassp49660.2025.10888339","50|doiboost____|bf2e01c817731bbe58abce54e18eb4e6","50|datacite____::bab7e184e34f6d4886ef7ebf451be059","10.48550/arxiv.2410.04930","oai:arXiv.org:2410.04930","50|od________18::abdfee202b28f2986918c1e64996e1a1","50|dblp________::57d7f544a773eb033d7354cc1711c227","oai:zenodo.org:17415220","50|od______2659::6d24b21dd73476b2d78c967a444baa9e","50|r3c4b2081b22::6d24b21dd73476b2d78c967a444baa9e","10.1109/ICASSP49660.2025.10888339"],"pids":[{"scheme":"doi","value":"10.1109/icassp49660.2025.10888339"},{"scheme":"doi","value":"10.48550/arxiv.2410.04930"},{"scheme":"arXiv","value":"2410.04930"}],"dateOfCollection":null,"lastUpdateTimeStamp":null,"indicators":{"citationImpact":{"citationCount":2.0,"influence":2.2244568E-9,"popularity":3.5278267E-9,"impulse":2.0,"citationClass":"C5","influenceClass":"C5","impulseClass":"C5","popularityClass":"C4"}},"projects":[{"id":"corda_____he::de5fed0337ae11c9221fb2c0773da6dd","code":"101139176","acronym":"6G-MUSICAL","title":"6G-Multiband Wireless and Optical Signalling for Integrated Communications, Sensing and Localization","funder":"European Commission","pids":[{"scheme":"doi","value":"10.3030/101139176"}]}],"organizations":[{"legalName":"Royal Institute of Technology","acronym":"KTH","id":"openorgs____::7501d66d2297a963ebfb075c43fff88e","pids":[{"scheme":"ISNI","value":"0000000121581746"},{"scheme":"GRID","value":"grid.5037.1"},{"scheme":"wikidata","value":"Q854280"},{"scheme":"mag_id","value":"86987016"},{"scheme":"Wikidata","value":"Q854280"},{"scheme":"PIC","value":"999990946"},{"scheme":"OrgReg","value":"SE0008"},{"scheme":"FundRef","value":"501100004270"},{"scheme":"RRID","value":"RRID:SCR_000992"},{"scheme":"ROR","value":"https://ror.org/026vcq606"},{"scheme":"OrgRef","value":"25609"},{"scheme":"RRID","value":"RRID:nlx_48999"},{"scheme":"fundref","value":"501100004270"}],"countries":[{"code":"SE","label":"Sweden"}],"websiteurl":"http://www.kth.se/en"}],"communities":[{"code":"eosc","label":"EOSC","provenance":null},{"code":"uarctic","label":"UArctic","provenance":null}],"collectedFrom":[{"key":"openaire____::9e3be59865b2c1c335d32dae2fe7b254","value":"Datacite"},{"key":"opendoar____::358aee4cc897452c00244351e4d91f69","value":"ZENODO"},{"key":"openaire____::081b82f96300b6a6e3d282bad31cb6e2","value":"Crossref"},{"key":"openaire____::d8b68cc0a53121f6f896883a7d60c1db","value":"DBLP"},{"key":"opendoar____::6f4922f45568161a8cdf4ad2299f6d23","value":"arXiv.org e-Print Archive"},{"key":"re3data_____::c4b2081b224be6b3e79d0e5e5556f631","value":"European Union Open Data Portal"}],"instances":[{"pids":[{"scheme":"doi","value":"10.1109/icassp49660.2025.10888339"}],"license":"STM Policy #29","accessRight":{"code":"c_14cb","label":"CLOSED","scheme":"http://vocabularies.coar-repositories.org/documentation/access_rights/","openAccessRoute":null},"type":"Article","urls":["https://doi.org/10.1109/icassp49660.2025.10888339"],"publicationDate":"2025-04-06","refereed":"peerReviewed","hostedBy":{"key":"openaire____::55045bd2a65019fd8e6741a755395c8c","value":"Unknown Repository"},"collectedFrom":{"key":"openaire____::081b82f96300b6a6e3d282bad31cb6e2","value":"Crossref"}},{"pids":[{"scheme":"doi","value":"10.48550/arxiv.2410.04930"}],"license":"arXiv Non-Exclusive Distribution","type":"Article","urls":["https://dx.doi.org/10.48550/arxiv.2410.04930"],"publicationDate":"2024-01-01","refereed":"nonPeerReviewed","hostedBy":{"key":"openaire____::55045bd2a65019fd8e6741a755395c8c","value":"Unknown Repository"},"collectedFrom":{"key":"openaire____::9e3be59865b2c1c335d32dae2fe7b254","value":"Datacite"}},{"pids":[{"scheme":"arXiv","value":"2410.04930"}],"accessRight":{"code":"c_abf2","label":"OPEN","scheme":"http://vocabularies.coar-repositories.org/documentation/access_rights/","openAccessRoute":null},"type":"Preprint","urls":["http://arxiv.org/abs/2410.04930"],"publicationDate":"2024-10-07","refereed":"nonPeerReviewed","hostedBy":{"key":"opendoar____::6f4922f45568161a8cdf4ad2299f6d23","value":"arXiv.org e-Print Archive"},"collectedFrom":{"key":"opendoar____::6f4922f45568161a8cdf4ad2299f6d23","value":"arXiv.org e-Print Archive"}},{"alternateIdentifiers":[{"scheme":"doi","value":"10.1109/icassp49660.2025.10888339"}],"type":"Conference object","urls":["https://doi.org/10.1109/ICASSP49660.2025.10888339","https://dblp.org/rec/conf/icassp/DaeiZCS025.html"],"refereed":"nonPeerReviewed","hostedBy":{"key":"openaire____::d8b68cc0a53121f6f896883a7d60c1db","value":"DBLP"},"collectedFrom":{"key":"openaire____::d8b68cc0a53121f6f896883a7d60c1db","value":"DBLP"}},{"alternateIdentifiers":[{"scheme":"oai","value":"oai:zenodo.org:17415220"},{"scheme":"doi","value":"10.1109/icassp49660.2025.10888339"}],"license":"CC BY","accessRight":{"code":"c_abf2","label":"OPEN","scheme":"http://vocabularies.coar-repositories.org/documentation/access_rights/","openAccessRoute":null},"type":"Conference object","urls":["http://dx.doi.org/10.1109/ICASSP49660.2025.10888339","https://zenodo.org/records/17415220"],"publicationDate":"2025-04-22","refereed":"nonPeerReviewed","hostedBy":{"key":"opendoar____::358aee4cc897452c00244351e4d91f69","value":"ZENODO"},"collectedFrom":{"key":"opendoar____::358aee4cc897452c00244351e4d91f69","value":"ZENODO"}},{"alternateIdentifiers":[{"scheme":"doi","value":"10.1109/icassp49660.2025.10888339"}],"type":"Conference object","urls":["http://dx.doi.org/10.1109/ICASSP49660.2025.10888339"],"publicationDate":"2025-01-01","refereed":"nonPeerReviewed","hostedBy":{"key":"openaire____::55045bd2a65019fd8e6741a755395c8c","value":"Unknown Repository"},"collectedFrom":{"key":"re3data_____::c4b2081b224be6b3e79d0e5e5556f631","value":"European Union Open Data Portal"}}],"links":[{"header":{"relationType":"resultProject","relationClass":"isProducedBy","relatedIdentifier":"corda_____he::de5fed0337ae11c9221fb2c0773da6dd","relatedRecordType":"project","relationProvenance":"iis","trust":"0.897"},"collectedfrom":[{"dsId":"openaire____::3f264f93cf3b0cfc4ede188a6300455c","dsName":"CORDA - COmmon Research DAta Warehouse - Horizon Europe"}],"projectTitle":"6G-Multiband Wireless and Optical Signalling for Integrated Communications, Sensing and Localization","code":"101139176","funding":{"funder":{"id":"ec__________::EC","shortname":"EC","name":"European Commission","jurisdiction":{"code":"EU","label":"European Union"},"pid":null},"level0":{"id":"ec__________::EC::HE","description":"Horizon Europe Framework Programme","name":"HE"},"level1":{"id":"ec__________::EC::HE::HORIZON-JU-RIA","description":"HORIZON JU Research and Innovation Actions","name":"HORIZON-JU-RIA"},"level2":{"id":null,"description":null,"name":null}},"startDate":"2024-01-01","endDate":"2026-12-31"}],"otherTitles":null,"green":true,"inDiamondJournal":false,"isGreen":true,"isInDiamondJournal":false}