{"id":"https://openalex.org/W4417284456","doi":"https://doi.org/10.1109/pimrc62392.2025.11275321","title":"Multiple-Input Multiple-Output AFDM with Index Modulation","display_name":"Multiple-Input Multiple-Output AFDM with Index Modulation","publication_year":2025,"publication_date":"2025-09-01","ids":{"openalex":"https://openalex.org/W4417284456","doi":"https://doi.org/10.1109/pimrc62392.2025.11275321"},"language":null,"primary_location":{"id":"doi:10.1109/pimrc62392.2025.11275321","is_oa":false,"landing_page_url":"https://doi.org/10.1109/pimrc62392.2025.11275321","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":"conference-paper","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/A5040376093","display_name":"Ruiqi Cao","orcid":"https://orcid.org/0000-0003-3002-9835"},"institutions":[{"id":"https://openalex.org/I157773358","display_name":"Sun Yat-sen University","ror":"https://ror.org/0064kty71","country_code":"CN","type":"education","lineage":["https://openalex.org/I157773358"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ruiqi Cao","raw_affiliation_strings":["Sun Yat-sen University,School of Electronics and Communication Engineering,Shenzhen,China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Sun Yat-sen University,School of Electronics and Communication Engineering,Shenzhen,China","institution_ids":["https://openalex.org/I157773358"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5001679117","display_name":"Yanqun Tang","orcid":"https://orcid.org/0000-0003-2803-1186"},"institutions":[{"id":"https://openalex.org/I157773358","display_name":"Sun Yat-sen University","ror":"https://ror.org/0064kty71","country_code":"CN","type":"education","lineage":["https://openalex.org/I157773358"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yanqun Tang","raw_affiliation_strings":["Sun Yat-sen University,School of Electronics and Communication Engineering,Shenzhen,China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Sun Yat-sen University,School of Electronics and Communication Engineering,Shenzhen,China","institution_ids":["https://openalex.org/I157773358"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5027818347","display_name":"Tianqi Mao","orcid":"https://orcid.org/0000-0003-4700-9419"},"institutions":[{"id":"https://openalex.org/I125839683","display_name":"Beijing Institute of Technology","ror":"https://ror.org/01skt4w74","country_code":"CN","type":"education","lineage":["https://openalex.org/I125839683","https://openalex.org/I890469752"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Tianqi Mao","raw_affiliation_strings":["Beijing Institute of Technology,MIIT Key Laboratory of Complex-Field Intelligent Sensing,Beijing,China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Beijing Institute of Technology,MIIT Key Laboratory of Complex-Field Intelligent Sensing,Beijing,China","institution_ids":["https://openalex.org/I125839683"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5056239059","display_name":"Muzi Yuan","orcid":"https://orcid.org/0000-0003-3333-4990"},"institutions":[{"id":"https://openalex.org/I170215575","display_name":"National University of Defense Technology","ror":"https://ror.org/05d2yfz11","country_code":"CN","type":"education","lineage":["https://openalex.org/I170215575"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Muzi Yuan","raw_affiliation_strings":["National University of Defense Technology,College of Electronic Science and Technology,Changsha,China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National University of Defense Technology,College of Electronic Science and Technology,Changsha,China","institution_ids":["https://openalex.org/I170215575"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100767525","display_name":"Yuqing Liu","orcid":"https://orcid.org/0000-0003-2417-3523"},"institutions":[{"id":"https://openalex.org/I157773358","display_name":"Sun Yat-sen University","ror":"https://ror.org/0064kty71","country_code":"CN","type":"education","lineage":["https://openalex.org/I157773358"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yuqing Liu","raw_affiliation_strings":["Sun Yat-sen University,School of Electronics and Communication Engineering,Shenzhen,China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Sun Yat-sen University,School of Electronics and Communication Engineering,Shenzhen,China","institution_ids":["https://openalex.org/I157773358"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5066820083","display_name":"Hongjie Bao","orcid":null},"institutions":[{"id":"https://openalex.org/I157773358","display_name":"Sun Yat-sen University","ror":"https://ror.org/0064kty71","country_code":"CN","type":"education","lineage":["https://openalex.org/I157773358"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Hongjie Bao","raw_affiliation_strings":["Sun Yat-sen University,School of Electronics and Communication Engineering,Shenzhen,China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Sun Yat-sen University,School of Electronics and Communication Engineering,Shenzhen,China","institution_ids":["https://openalex.org/I157773358"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100406207","display_name":"Haibo Chen","orcid":"https://orcid.org/0000-0001-8039-7981"},"institutions":[{"id":"https://openalex.org/I157773358","display_name":"Sun Yat-sen University","ror":"https://ror.org/0064kty71","country_code":"CN","type":"education","lineage":["https://openalex.org/I157773358"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Haibo Chen","raw_affiliation_strings":["Sun Yat-sen University,School of Electronics and Communication Engineering,Shenzhen,China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Sun Yat-sen University,School of Electronics and Communication Engineering,Shenzhen,China","institution_ids":["https://openalex.org/I157773358"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":null,"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/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.9751999974250793,"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/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.9751999974250793,"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/T11873","display_name":"PAPR reduction in OFDM","score":0.009600000455975533,"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/T10125","display_name":"Advanced Wireless Communication Techniques","score":0.009100000374019146,"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/subcarrier","display_name":"Subcarrier","score":0.6007000207901001},{"id":"https://openalex.org/keywords/multiplexing","display_name":"Multiplexing","score":0.5188000202178955},{"id":"https://openalex.org/keywords/modulation","display_name":"Modulation (music)","score":0.5169000029563904},{"id":"https://openalex.org/keywords/bit-error-rate","display_name":"Bit error rate","score":0.5062999725341797},{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.39910000562667847},{"id":"https://openalex.org/keywords/spectral-efficiency","display_name":"Spectral efficiency","score":0.39320001006126404},{"id":"https://openalex.org/keywords/computational-complexity-theory","display_name":"Computational complexity theory","score":0.3824000060558319},{"id":"https://openalex.org/keywords/exponential-function","display_name":"Exponential function","score":0.36340001225471497}],"concepts":[{"id":"https://openalex.org/C198329298","wikidata":"https://www.wikidata.org/wiki/Q586358","display_name":"Subcarrier","level":4,"score":0.6007000207901001},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5327000021934509},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5249000191688538},{"id":"https://openalex.org/C19275194","wikidata":"https://www.wikidata.org/wiki/Q222903","display_name":"Multiplexing","level":2,"score":0.5188000202178955},{"id":"https://openalex.org/C123079801","wikidata":"https://www.wikidata.org/wiki/Q750240","display_name":"Modulation (music)","level":2,"score":0.5169000029563904},{"id":"https://openalex.org/C56296756","wikidata":"https://www.wikidata.org/wiki/Q840922","display_name":"Bit error rate","level":3,"score":0.5062999725341797},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.4169999957084656},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.39910000562667847},{"id":"https://openalex.org/C137246740","wikidata":"https://www.wikidata.org/wiki/Q583970","display_name":"Spectral efficiency","level":3,"score":0.39320001006126404},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.3824000060558319},{"id":"https://openalex.org/C151376022","wikidata":"https://www.wikidata.org/wiki/Q168698","display_name":"Exponential function","level":2,"score":0.36340001225471497},{"id":"https://openalex.org/C50661577","wikidata":"https://www.wikidata.org/wiki/Q901831","display_name":"Time-division multiplexing","level":3,"score":0.33250001072883606},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.3061999976634979},{"id":"https://openalex.org/C137270730","wikidata":"https://www.wikidata.org/wiki/Q120811","display_name":"Detection theory","level":3,"score":0.30079999566078186},{"id":"https://openalex.org/C161218011","wikidata":"https://www.wikidata.org/wiki/Q11827794","display_name":"Multipath propagation","level":3,"score":0.29339998960494995},{"id":"https://openalex.org/C138916503","wikidata":"https://www.wikidata.org/wiki/Q2714551","display_name":"Link adaptation","level":4,"score":0.2919999957084656},{"id":"https://openalex.org/C32409245","wikidata":"https://www.wikidata.org/wiki/Q749753","display_name":"Quadrature amplitude modulation","level":4,"score":0.28600001335144043},{"id":"https://openalex.org/C77618280","wikidata":"https://www.wikidata.org/wiki/Q1155772","display_name":"Scheme (mathematics)","level":2,"score":0.28290000557899475},{"id":"https://openalex.org/C2777382242","wikidata":"https://www.wikidata.org/wiki/Q6017816","display_name":"Index (typography)","level":2,"score":0.28279998898506165},{"id":"https://openalex.org/C103088060","wikidata":"https://www.wikidata.org/wiki/Q1062839","display_name":"Error detection and correction","level":2,"score":0.2784999907016754},{"id":"https://openalex.org/C101765175","wikidata":"https://www.wikidata.org/wiki/Q577764","display_name":"Communications system","level":2,"score":0.26409998536109924},{"id":"https://openalex.org/C2778562939","wikidata":"https://www.wikidata.org/wiki/Q1298791","display_name":"Synchronization (alternating current)","level":3,"score":0.26269999146461487},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.25949999690055847},{"id":"https://openalex.org/C92224547","wikidata":"https://www.wikidata.org/wiki/Q1673216","display_name":"Probability of error","level":2,"score":0.2574000060558319}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/pimrc62392.2025.11275321","is_oa":false,"landing_page_url":"https://doi.org/10.1109/pimrc62392.2025.11275321","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":[{"id":"https://openalex.org/F4320324202","display_name":"Guangdong Science and Technology Department","ror":"https://ror.org/00tjzgn92"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":21,"referenced_works":["https://openalex.org/W2113269004","https://openalex.org/W2159772567","https://openalex.org/W2189137594","https://openalex.org/W2965824823","https://openalex.org/W3144404977","https://openalex.org/W3178250694","https://openalex.org/W3204344509","https://openalex.org/W4313045845","https://openalex.org/W4322706889","https://openalex.org/W4385484959","https://openalex.org/W4389352528","https://openalex.org/W4390576688","https://openalex.org/W4399601432","https://openalex.org/W4400276061","https://openalex.org/W4400277462","https://openalex.org/W4400728612","https://openalex.org/W4408326027","https://openalex.org/W4409723627","https://openalex.org/W4415221949","https://openalex.org/W7081983954","https://openalex.org/W7082256428"],"related_works":[],"abstract_inverted_index":{"In":[0],"high-mobility":[1],"scenarios,":[2],"affine":[3],"frequency":[4],"division":[5],"multiplexing":[6,34],"with":[7,27],"index":[8],"modulation":[9],"(AFDM-IM)":[10],"has":[11],"attracted":[12],"significant":[13],"attention":[14],"due":[15],"to":[16,19,49,65,80,103],"its":[17,105],"ability":[18],"convey":[20],"information":[21],"by":[22,31],"combining":[23],"active":[24],"subcarrier":[25],"indices":[26],"constellation":[28],"symbols.":[29],"Motivated":[30],"the":[32,46,67,91,98,117,120,123],"spatial":[33],"concept":[35],"in":[36,41,75],"multiple-input":[37],"multiple-output":[38],"(MIMO)":[39],"systems,":[40],"this":[42],"paper,":[43],"we":[44],"propose":[45],"MIMO-AFDM-IM":[47,99,125],"scheme":[48,100],"enhance":[50],"spectral":[51],"efficiency":[52],"(SE)":[53],"and":[54,87,116,128],"bit":[55,93],"error":[56,94],"rate":[57],"(BER)":[58],"performance.":[59,106],"Three":[60],"detection":[61,74,85],"methods":[62,78],"are":[63,109],"introduced":[64],"address":[66],"exponential":[68],"complexity":[69],"of":[70,97,122],"Maximum":[71],"Likelihood":[72],"(ML)":[73],"MIMO-AFDM-IM.":[76],"These":[77],"aim":[79],"strike":[81],"a":[82],"balance":[83],"between":[84],"accuracy":[86],"computational":[88],"complexity.":[89],"Additionally,":[90],"average":[92],"probability":[95],"(ABEP)":[96],"is":[101],"derived":[102],"assess":[104],"Computer":[107],"simulations":[108],"carried":[110],"out":[111],"under":[112],"time-varying":[113],"multipath":[114],"conditions,":[115],"results":[118],"demonstrate":[119],"superiority":[121],"proposed":[124],"over":[126],"MIMOAFDM":[127],"AFDM-IM":[129],"across":[130],"various":[131],"system":[132],"configurations.":[133]},"counts_by_year":[],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2025-12-12T00:00:00"}
