{"id":"https://openalex.org/W4411948581","doi":"https://doi.org/10.1109/twc.2025.3582436","title":"Low-Complexity Nonlinear Hybrid Precoding Design: From Narrowband to Wideband Systems","display_name":"Low-Complexity Nonlinear Hybrid Precoding Design: From Narrowband to Wideband Systems","publication_year":2025,"publication_date":"2025-07-02","ids":{"openalex":"https://openalex.org/W4411948581","doi":"https://doi.org/10.1109/twc.2025.3582436"},"language":"en","primary_location":{"id":"doi:10.1109/twc.2025.3582436","is_oa":false,"landing_page_url":"https://doi.org/10.1109/twc.2025.3582436","pdf_url":null,"source":{"id":"https://openalex.org/S63459445","display_name":"IEEE Transactions on Wireless Communications","issn_l":"1536-1276","issn":["1536-1276","1558-2248"],"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 Transactions on Wireless Communications","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/A5009111422","display_name":"Xiaofeng Su","orcid":"https://orcid.org/0009-0008-8472-3199"},"institutions":[{"id":"https://openalex.org/I99065089","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Xiaofeng Su","raw_affiliation_strings":["Department of Electronic Engineering, Tsinghua University, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Department of Electronic Engineering, Tsinghua University, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100403297","display_name":"Jian Song","orcid":"https://orcid.org/0000-0002-6066-9510"},"institutions":[{"id":"https://openalex.org/I99065089","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jian Song","raw_affiliation_strings":["Department of Electronic Engineering, Tsinghua University, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Department of Electronic Engineering, Tsinghua University, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5009111422"],"corresponding_institution_ids":["https://openalex.org/I99065089"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.17456699,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"25","issue":null,"first_page":"243","last_page":"259"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10262","display_name":"Microwave Engineering and Waveguides","score":0.9969000220298767,"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/T10262","display_name":"Microwave Engineering and Waveguides","score":0.9969000220298767,"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/T10187","display_name":"Radio Frequency Integrated Circuit Design","score":0.9940000176429749,"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/T11946","display_name":"Antenna Design and Optimization","score":0.993399977684021,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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/precoding","display_name":"Precoding","score":0.8669706583023071},{"id":"https://openalex.org/keywords/narrowband","display_name":"Narrowband","score":0.7696298956871033},{"id":"https://openalex.org/keywords/wideband","display_name":"Wideband","score":0.6728506088256836},{"id":"https://openalex.org/keywords/zero-forcing-precoding","display_name":"Zero-forcing precoding","score":0.6087635159492493},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6019978523254395},{"id":"https://openalex.org/keywords/nonlinear-system","display_name":"Nonlinear system","score":0.48273083567619324},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.4618948698043823},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.3934214413166046},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.28484636545181274},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.1756076216697693},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.13729068636894226},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.10767385363578796}],"concepts":[{"id":"https://openalex.org/C160562895","wikidata":"https://www.wikidata.org/wiki/Q7239557","display_name":"Precoding","level":4,"score":0.8669706583023071},{"id":"https://openalex.org/C2776096036","wikidata":"https://www.wikidata.org/wiki/Q1140483","display_name":"Narrowband","level":2,"score":0.7696298956871033},{"id":"https://openalex.org/C2780202535","wikidata":"https://www.wikidata.org/wiki/Q4524457","display_name":"Wideband","level":2,"score":0.6728506088256836},{"id":"https://openalex.org/C155437304","wikidata":"https://www.wikidata.org/wiki/Q8069444","display_name":"Zero-forcing precoding","level":5,"score":0.6087635159492493},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6019978523254395},{"id":"https://openalex.org/C158622935","wikidata":"https://www.wikidata.org/wiki/Q660848","display_name":"Nonlinear system","level":2,"score":0.48273083567619324},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.4618948698043823},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.3934214413166046},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.28484636545181274},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.1756076216697693},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.13729068636894226},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.10767385363578796},{"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/twc.2025.3582436","is_oa":false,"landing_page_url":"https://doi.org/10.1109/twc.2025.3582436","pdf_url":null,"source":{"id":"https://openalex.org/S63459445","display_name":"IEEE Transactions on Wireless Communications","issn_l":"1536-1276","issn":["1536-1276","1558-2248"],"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 Transactions on Wireless Communications","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":38,"referenced_works":["https://openalex.org/W1423052447","https://openalex.org/W1537514565","https://openalex.org/W1974891392","https://openalex.org/W1976109068","https://openalex.org/W2029435453","https://openalex.org/W2030546921","https://openalex.org/W2103749601","https://openalex.org/W2110459355","https://openalex.org/W2125609692","https://openalex.org/W2141027770","https://openalex.org/W2150630209","https://openalex.org/W2161410889","https://openalex.org/W2195693430","https://openalex.org/W2259391824","https://openalex.org/W2272804037","https://openalex.org/W2469174679","https://openalex.org/W2759209584","https://openalex.org/W2964218543","https://openalex.org/W3011830499","https://openalex.org/W3093805045","https://openalex.org/W3096404537","https://openalex.org/W3124674133","https://openalex.org/W3126485115","https://openalex.org/W3144404977","https://openalex.org/W4206307706","https://openalex.org/W4285819005","https://openalex.org/W4297911787","https://openalex.org/W4322704146","https://openalex.org/W4375929207","https://openalex.org/W4376481253","https://openalex.org/W4384518893","https://openalex.org/W4386902906","https://openalex.org/W4387717455","https://openalex.org/W4389610147","https://openalex.org/W4391496430","https://openalex.org/W4394627344","https://openalex.org/W4399118807","https://openalex.org/W4407638736"],"related_works":["https://openalex.org/W2111825998","https://openalex.org/W1964845213","https://openalex.org/W2326544815","https://openalex.org/W1973158664","https://openalex.org/W1731022149","https://openalex.org/W1996933839","https://openalex.org/W2000226056","https://openalex.org/W4315778014","https://openalex.org/W4386858283","https://openalex.org/W1979957996"],"abstract_inverted_index":{"Nonlinear":[0],"hybrid":[1,16,71],"precoding":[2,17,38,72,110],"can":[3,56],"approach":[4],"capacity,":[5],"but":[6],"it":[7],"is":[8],"computationally":[9],"demanding.":[10],"This":[11],"paper":[12],"investigates":[13],"low-complexity":[14],"nonlinear":[15,70,109],"algorithms":[18,130],"designed":[19],"to":[20,79,86],"maximize":[21],"the":[22,43,61,97,128],"sum-rate":[23,133],"of":[24,99],"massive":[25],"multiple-input":[26],"multiple-output":[27],"broadcast":[28],"channels":[29],"(MIMO-BC).":[30],"We":[31],"propose":[32],"a":[33,69,105,121],"closed-form":[34],"solution":[35],"for":[36,74],"analog":[37],"in":[39,139],"narrowband":[40,141],"systems,":[41,76],"transforming":[42],"constant":[44],"modulus":[45],"constraint":[46],"into":[47],"an":[48],"equivalent":[49],"unconstrained":[50],"problem":[51],"with":[52],"phase":[53],"variables,":[54],"which":[55,82],"be":[57],"efficiently":[58],"solved":[59],"using":[60,120],"Fletcher-Reeves":[62],"conjugate":[63],"gradient":[64],"method.":[65],"Additionally,":[66],"we":[67,103],"introduce":[68],"technique":[73],"wideband":[75,143],"specifically":[77],"tailored":[78],"delay-phase":[80],"networks,":[81],"leverages":[83],"channel":[84],"characteristics":[85],"reduce":[87,96],"computational":[88,137],"complexity":[89,98],"without":[90],"relying":[91],"on":[92],"optimization.":[93],"To":[94],"further":[95],"subcarrier-level":[100],"digital":[101],"precoding,":[102],"develop":[104],"resource":[106],"block":[107],"(RB)-level":[108],"algorithm,":[111],"where":[112],"signals":[113],"within":[114],"each":[115],"RB":[116],"are":[117],"independently":[118],"precoded":[119],"common":[122],"precoder.":[123],"Simulation":[124],"results":[125],"show":[126],"that":[127],"proposed":[129],"achieve":[131],"near-optimal":[132],"performance":[134],"while":[135],"maintaining":[136],"efficiency":[138],"both":[140],"and":[142],"scenarios.":[144]},"counts_by_year":[],"updated_date":"2026-01-10T23:39:48.068659","created_date":"2025-10-10T00:00:00"}
