{"id":"https://openalex.org/W4414165734","doi":"https://doi.org/10.1109/jsac.2025.3607866","title":"Cram\u00e9r\u2013Rao Bound Optimization for Bistatic ISAC: Transceiver Design and Attention-Based ISACNet","display_name":"Cram\u00e9r\u2013Rao Bound Optimization for Bistatic ISAC: Transceiver Design and Attention-Based ISACNet","publication_year":2025,"publication_date":"2025-09-09","ids":{"openalex":"https://openalex.org/W4414165734","doi":"https://doi.org/10.1109/jsac.2025.3607866"},"language":"en","primary_location":{"id":"doi:10.1109/jsac.2025.3607866","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jsac.2025.3607866","pdf_url":null,"source":{"id":"https://openalex.org/S90422530","display_name":"IEEE Journal on Selected Areas in Communications","issn_l":"0733-8716","issn":["0733-8716","1558-0008"],"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 Journal on Selected Areas in 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/A5102780068","display_name":"Weihao Mao","orcid":"https://orcid.org/0009-0009-2683-8251"},"institutions":[{"id":"https://openalex.org/I21193070","display_name":"Beijing Jiaotong University","ror":"https://ror.org/01yj56c84","country_code":"CN","type":"education","lineage":["https://openalex.org/I21193070"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Weihao Mao","raw_affiliation_strings":["School of Computer Science and Technology, Beijing Jiaotong University, Beijing, China"],"affiliations":[{"raw_affiliation_string":"School of Computer Science and Technology, Beijing Jiaotong University, Beijing, China","institution_ids":["https://openalex.org/I21193070"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5000004323","display_name":"Yang Lu","orcid":"https://orcid.org/0000-0002-3519-4488"},"institutions":[{"id":"https://openalex.org/I21193070","display_name":"Beijing Jiaotong University","ror":"https://ror.org/01yj56c84","country_code":"CN","type":"education","lineage":["https://openalex.org/I21193070"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yang Lu","raw_affiliation_strings":["School of Computer Science and Technology, Beijing Jiaotong University, Beijing, China"],"affiliations":[{"raw_affiliation_string":"School of Computer Science and Technology, Beijing Jiaotong University, Beijing, China","institution_ids":["https://openalex.org/I21193070"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5053119799","display_name":"Gaofeng Pan","orcid":"https://orcid.org/0000-0003-1008-5717"},"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":"Gaofeng Pan","raw_affiliation_strings":["School of Cyberspace Science and Technology, Beijing Institute of Technology, Beijing, China"],"affiliations":[{"raw_affiliation_string":"School of Cyberspace Science and Technology, Beijing Institute of Technology, Beijing, China","institution_ids":["https://openalex.org/I125839683"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5044674658","display_name":"Jianping An","orcid":"https://orcid.org/0000-0002-6441-9711"},"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":"Jianping An","raw_affiliation_strings":["School of Cyberspace Science and Technology, Beijing Institute of Technology, Beijing, China"],"affiliations":[{"raw_affiliation_string":"School of Cyberspace Science and Technology, Beijing Institute of Technology, Beijing, China","institution_ids":["https://openalex.org/I125839683"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100620739","display_name":"Bo Ai","orcid":"https://orcid.org/0000-0001-6850-0595"},"institutions":[{"id":"https://openalex.org/I21193070","display_name":"Beijing Jiaotong University","ror":"https://ror.org/01yj56c84","country_code":"CN","type":"education","lineage":["https://openalex.org/I21193070"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Bo Ai","raw_affiliation_strings":["School of Electronics and Information Engineering, Beijing Jiaotong University, Beijing, China"],"affiliations":[{"raw_affiliation_string":"School of Electronics and Information Engineering, Beijing Jiaotong University, Beijing, China","institution_ids":["https://openalex.org/I21193070"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5006080984","display_name":"Derrick Wing Kwan Ng","orcid":"https://orcid.org/0000-0001-6400-712X"},"institutions":[{"id":"https://openalex.org/I31746571","display_name":"UNSW Sydney","ror":"https://ror.org/03r8z3t63","country_code":"AU","type":"education","lineage":["https://openalex.org/I31746571"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Derrick Wing Kwan Ng","raw_affiliation_strings":["School of Electrical Engineering and Telecommunications, University of New South Wales, Sydney, NSW, Australia"],"affiliations":[{"raw_affiliation_string":"School of Electrical Engineering and Telecommunications, University of New South Wales, Sydney, NSW, Australia","institution_ids":["https://openalex.org/I31746571"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5102780068"],"corresponding_institution_ids":["https://openalex.org/I21193070"],"apc_list":null,"apc_paid":null,"fwci":4.7137,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.95105715,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":98,"max":99},"biblio":{"volume":"44","issue":null,"first_page":"181","last_page":"195"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12131","display_name":"Wireless Signal Modulation Classification","score":0.9686999917030334,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T12131","display_name":"Wireless Signal Modulation Classification","score":0.9686999917030334,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"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/T12702","display_name":"Brain Tumor Detection and Classification","score":0.9684000015258789,"subfield":{"id":"https://openalex.org/subfields/2808","display_name":"Neurology"},"field":{"id":"https://openalex.org/fields/28","display_name":"Neuroscience"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T10502","display_name":"Advanced Memory and Neural Computing","score":0.9569000005722046,"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/telecommunications-link","display_name":"Telecommunications link","score":0.8537999987602234},{"id":"https://openalex.org/keywords/beamforming","display_name":"Beamforming","score":0.8338000178337097},{"id":"https://openalex.org/keywords/base-station","display_name":"Base station","score":0.6947000026702881},{"id":"https://openalex.org/keywords/transmitter-power-output","display_name":"Transmitter power output","score":0.5824999809265137},{"id":"https://openalex.org/keywords/transceiver","display_name":"Transceiver","score":0.550599992275238},{"id":"https://openalex.org/keywords/upper-and-lower-bounds","display_name":"Upper and lower bounds","score":0.4223000109195709},{"id":"https://openalex.org/keywords/convex-optimization","display_name":"Convex optimization","score":0.41100001335144043},{"id":"https://openalex.org/keywords/joint","display_name":"Joint (building)","score":0.40470001101493835},{"id":"https://openalex.org/keywords/covariance","display_name":"Covariance","score":0.3871999979019165}],"concepts":[{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.8537999987602234},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.8338000178337097},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8219000101089478},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.6947000026702881},{"id":"https://openalex.org/C65422117","wikidata":"https://www.wikidata.org/wiki/Q358527","display_name":"Transmitter power output","level":4,"score":0.5824999809265137},{"id":"https://openalex.org/C7720470","wikidata":"https://www.wikidata.org/wiki/Q954187","display_name":"Transceiver","level":3,"score":0.550599992275238},{"id":"https://openalex.org/C77553402","wikidata":"https://www.wikidata.org/wiki/Q13222579","display_name":"Upper and lower bounds","level":2,"score":0.4223000109195709},{"id":"https://openalex.org/C157972887","wikidata":"https://www.wikidata.org/wiki/Q463359","display_name":"Convex optimization","level":3,"score":0.41100001335144043},{"id":"https://openalex.org/C18555067","wikidata":"https://www.wikidata.org/wiki/Q8375051","display_name":"Joint (building)","level":2,"score":0.40470001101493835},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.39500001072883606},{"id":"https://openalex.org/C178650346","wikidata":"https://www.wikidata.org/wiki/Q201984","display_name":"Covariance","level":2,"score":0.3871999979019165},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.38040000200271606},{"id":"https://openalex.org/C157764524","wikidata":"https://www.wikidata.org/wiki/Q1383412","display_name":"Throughput","level":3,"score":0.36010000109672546},{"id":"https://openalex.org/C100102862","wikidata":"https://www.wikidata.org/wiki/Q2625855","display_name":"Bistatic radar","level":4,"score":0.35830000042915344},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.3531000018119812},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.34310001134872437},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.3319999873638153},{"id":"https://openalex.org/C137836250","wikidata":"https://www.wikidata.org/wiki/Q984063","display_name":"Optimization problem","level":2,"score":0.31299999356269836},{"id":"https://openalex.org/C13944312","wikidata":"https://www.wikidata.org/wiki/Q7512748","display_name":"Signal-to-noise ratio (imaging)","level":2,"score":0.3077000081539154},{"id":"https://openalex.org/C90559484","wikidata":"https://www.wikidata.org/wiki/Q778379","display_name":"Expression (computer science)","level":2,"score":0.2953000068664551},{"id":"https://openalex.org/C185142706","wikidata":"https://www.wikidata.org/wiki/Q1134404","display_name":"Covariance matrix","level":2,"score":0.28870001435279846},{"id":"https://openalex.org/C149768029","wikidata":"https://www.wikidata.org/wiki/Q1509342","display_name":"Power budget","level":4,"score":0.27390000224113464},{"id":"https://openalex.org/C160562895","wikidata":"https://www.wikidata.org/wiki/Q7239557","display_name":"Precoding","level":4,"score":0.2574999928474426},{"id":"https://openalex.org/C159737794","wikidata":"https://www.wikidata.org/wiki/Q124274","display_name":"Azimuth","level":2,"score":0.25589999556541443},{"id":"https://openalex.org/C147764199","wikidata":"https://www.wikidata.org/wiki/Q6865248","display_name":"Minification","level":2,"score":0.2556999921798706}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/jsac.2025.3607866","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jsac.2025.3607866","pdf_url":null,"source":{"id":"https://openalex.org/S90422530","display_name":"IEEE Journal on Selected Areas in Communications","issn_l":"0733-8716","issn":["0733-8716","1558-0008"],"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 Journal on Selected Areas in Communications","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G4144307633","display_name":null,"funder_award_id":"L242086","funder_id":"https://openalex.org/F4320334977","funder_display_name":"Beijing Municipal Natural Science Foundation"},{"id":"https://openalex.org/G4323693889","display_name":null,"funder_award_id":"62171031","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G5331489779","display_name":null,"funder_award_id":"62221001","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G8765633020","display_name":null,"funder_award_id":"U2468201","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G898851953","display_name":null,"funder_award_id":"62571045","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G948193724","display_name":null,"funder_award_id":"62571023","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320334977","display_name":"Beijing Municipal Natural Science Foundation","ror":null}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":38,"referenced_works":["https://openalex.org/W2109499745","https://openalex.org/W2114694381","https://openalex.org/W3119152637","https://openalex.org/W3155535021","https://openalex.org/W3162418282","https://openalex.org/W3194620979","https://openalex.org/W3207252949","https://openalex.org/W4205204500","https://openalex.org/W4214842474","https://openalex.org/W4214866728","https://openalex.org/W4312051213","https://openalex.org/W4318068990","https://openalex.org/W4367663305","https://openalex.org/W4377001527","https://openalex.org/W4377231518","https://openalex.org/W4380763437","https://openalex.org/W4381163434","https://openalex.org/W4381785965","https://openalex.org/W4385517010","https://openalex.org/W4386703483","https://openalex.org/W4389922377","https://openalex.org/W4390044032","https://openalex.org/W4391092702","https://openalex.org/W4391935941","https://openalex.org/W4392745233","https://openalex.org/W4393139936","https://openalex.org/W4393972738","https://openalex.org/W4394698864","https://openalex.org/W4394951272","https://openalex.org/W4396523493","https://openalex.org/W4399951424","https://openalex.org/W4399994130","https://openalex.org/W4400726956","https://openalex.org/W4400943840","https://openalex.org/W4401113548","https://openalex.org/W4402436232","https://openalex.org/W4402473628","https://openalex.org/W4402509610"],"related_works":[],"abstract_inverted_index":{"This":[0],"paper":[1],"investigates":[2],"the":[3,49,67,76,79,83,91,102,127,146,149,159,166,171,193],"joint":[4],"transmit":[5,21,68,103],"and":[6,15,25,36,56,61,71,107,135,153],"receive":[7,27,85],"beamforming":[8,86,105],"design":[9],"for":[10,48,53,82,100],"a":[11,20,26,94,113,187],"bistatic":[12],"integrated":[13],"sensing":[14,108,160],"communication":[16,72,168],"(ISAC)":[17],"system,":[18],"where":[19],"base":[22],"station":[23],"(BS)":[24],"BS":[28],"are":[29],"coordinated":[30],"to":[31,64,125,138,192],"simultaneously":[32],"serve":[33],"multiple":[34],"downlink":[35,167],"uplink":[37,172],"users":[38],"as":[39,41],"well":[40],"estimate":[42],"target":[43,54],"positions.":[44],"The":[45,130],"closed-form":[46,80],"expression":[47,81],"Cram\u00e9r-Rao":[50],"bound":[51],"(CRB)":[52],"positions":[55],"reflection":[57],"coefficients":[58],"is":[59,88,123,156,162],"derived":[60],"minimized":[62],"subject":[63],"constraints":[65],"of":[66,93,148],"power":[69],"budget":[70],"requirements.":[73],"To":[74],"address":[75],"considered":[77,128],"problem,":[78],"optimal":[84],"vectors":[87,106],"derived,":[89],"facilitating":[90],"development":[92],"successive":[95],"convex":[96],"approximation":[97],"(SCA)-based":[98],"algorithm":[99,152],"optimizing":[101],"information":[104],"covariance":[109],"matrix.":[110],"In":[111],"addition,":[112],"learning-based":[114],"approach":[115],"named":[116],"ISACNet,":[117],"trained":[118],"in":[119,181],"an":[120,178],"unsupervised":[121],"manner,":[122],"proposed":[124,150],"handle":[126],"problem.":[129],"ISACNet":[131,176],"incorporates":[132],"multi-head":[133],"self-attention":[134],"cross-attention":[136],"mechanisms":[137],"significantly":[139],"enhance":[140],"its":[141],"expressive":[142],"capability.":[143],"Simulations":[144],"validate":[145],"effectiveness":[147],"SCA-based":[151,194],"ISACNet.":[154],"It":[155],"observed":[157],"that":[158],"performance":[161,189],"predominantly":[163],"affected":[164],"by":[165],"more":[169],"than":[170],"communication.":[173],"Furthermore,":[174],"our":[175],"generates":[177],"effective":[179],"solution":[180],"millisecond-level":[182],"response":[183],"times":[184],"with":[185],"only":[186],"marginal":[188],"degradation":[190],"compared":[191],"algorithm.":[195]},"counts_by_year":[{"year":2026,"cited_by_count":2}],"updated_date":"2026-04-09T08:11:56.329763","created_date":"2025-10-10T00:00:00"}
