{"id":"https://openalex.org/W4415123945","doi":"https://doi.org/10.1109/twc.2025.3617921","title":"On Low-Complexity Transmit Beamforming for Distributed ISAC Systems","display_name":"On Low-Complexity Transmit Beamforming for Distributed ISAC Systems","publication_year":2025,"publication_date":"2025-10-13","ids":{"openalex":"https://openalex.org/W4415123945","doi":"https://doi.org/10.1109/twc.2025.3617921"},"language":"en","primary_location":{"id":"doi:10.1109/twc.2025.3617921","is_oa":false,"landing_page_url":"https://doi.org/10.1109/twc.2025.3617921","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/A5067731152","display_name":"R. S. Prasobh Sankar","orcid":"https://orcid.org/0000-0002-5907-5897"},"institutions":[{"id":"https://openalex.org/I59270414","display_name":"Indian Institute of Science Bangalore","ror":"https://ror.org/04dese585","country_code":"IN","type":"education","lineage":["https://openalex.org/I59270414"]}],"countries":["IN"],"is_corresponding":true,"raw_author_name":"R. S. Prasobh Sankar","raw_affiliation_strings":["Department of ECE, Indian Institute of Science, Bengaluru, Karnataka, India","Department of ECE, Indian Institute of Science, Bengaluru, India"],"affiliations":[{"raw_affiliation_string":"Department of ECE, Indian Institute of Science, Bengaluru, Karnataka, India","institution_ids":["https://openalex.org/I59270414"]},{"raw_affiliation_string":"Department of ECE, Indian Institute of Science, Bengaluru, India","institution_ids":["https://openalex.org/I59270414"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5015585417","display_name":"Sundeep Prabhakar Chepuri","orcid":"https://orcid.org/0000-0002-0429-6588"},"institutions":[{"id":"https://openalex.org/I59270414","display_name":"Indian Institute of Science Bangalore","ror":"https://ror.org/04dese585","country_code":"IN","type":"education","lineage":["https://openalex.org/I59270414"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Sundeep Prabhakar Chepuri","raw_affiliation_strings":["Department of ECE, Indian Institute of Science, Bengaluru, Karnataka, India","Department of ECE, Indian Institute of Science, Bengaluru, India"],"affiliations":[{"raw_affiliation_string":"Department of ECE, Indian Institute of Science, Bengaluru, Karnataka, India","institution_ids":["https://openalex.org/I59270414"]},{"raw_affiliation_string":"Department of ECE, Indian Institute of Science, Bengaluru, India","institution_ids":["https://openalex.org/I59270414"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5067731152"],"corresponding_institution_ids":["https://openalex.org/I59270414"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.3046813,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"25","issue":null,"first_page":"5370","last_page":"5385"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11392","display_name":"Energy Harvesting in Wireless Networks","score":0.9957000017166138,"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/T11392","display_name":"Energy Harvesting in Wireless Networks","score":0.9957000017166138,"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/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.9954000115394592,"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/T11932","display_name":"Wireless Body Area Networks","score":0.9932000041007996,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical 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/beamforming","display_name":"Beamforming","score":0.8011000156402588},{"id":"https://openalex.org/keywords/transmitter-power-output","display_name":"Transmitter power output","score":0.7493000030517578},{"id":"https://openalex.org/keywords/precoding","display_name":"Precoding","score":0.7408000230789185},{"id":"https://openalex.org/keywords/backhaul","display_name":"Backhaul (telecommunications)","score":0.7214999794960022},{"id":"https://openalex.org/keywords/semidefinite-programming","display_name":"Semidefinite programming","score":0.46639999747276306},{"id":"https://openalex.org/keywords/convex-optimization","display_name":"Convex optimization","score":0.46299999952316284},{"id":"https://openalex.org/keywords/compressed-sensing","display_name":"Compressed sensing","score":0.44909998774528503},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.41990000009536743},{"id":"https://openalex.org/keywords/transmission","display_name":"Transmission (telecommunications)","score":0.4025999903678894},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.39719998836517334}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8051999807357788},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.8011000156402588},{"id":"https://openalex.org/C65422117","wikidata":"https://www.wikidata.org/wiki/Q358527","display_name":"Transmitter power output","level":4,"score":0.7493000030517578},{"id":"https://openalex.org/C160562895","wikidata":"https://www.wikidata.org/wiki/Q7239557","display_name":"Precoding","level":4,"score":0.7408000230789185},{"id":"https://openalex.org/C103760667","wikidata":"https://www.wikidata.org/wiki/Q798444","display_name":"Backhaul (telecommunications)","level":3,"score":0.7214999794960022},{"id":"https://openalex.org/C101901036","wikidata":"https://www.wikidata.org/wiki/Q2269096","display_name":"Semidefinite programming","level":2,"score":0.46639999747276306},{"id":"https://openalex.org/C157972887","wikidata":"https://www.wikidata.org/wiki/Q463359","display_name":"Convex optimization","level":3,"score":0.46299999952316284},{"id":"https://openalex.org/C124851039","wikidata":"https://www.wikidata.org/wiki/Q2665459","display_name":"Compressed sensing","level":2,"score":0.44909998774528503},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.41990000009536743},{"id":"https://openalex.org/C761482","wikidata":"https://www.wikidata.org/wiki/Q118093","display_name":"Transmission (telecommunications)","level":2,"score":0.4025999903678894},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.39719998836517334},{"id":"https://openalex.org/C159694833","wikidata":"https://www.wikidata.org/wiki/Q2321565","display_name":"Iterative method","level":2,"score":0.3720000088214874},{"id":"https://openalex.org/C130120984","wikidata":"https://www.wikidata.org/wiki/Q2835898","display_name":"Distributed algorithm","level":2,"score":0.35030001401901245},{"id":"https://openalex.org/C2776330181","wikidata":"https://www.wikidata.org/wiki/Q18358244","display_name":"Maximization","level":2,"score":0.3343999981880188},{"id":"https://openalex.org/C192209626","wikidata":"https://www.wikidata.org/wiki/Q190909","display_name":"Focus (optics)","level":2,"score":0.32820001244544983},{"id":"https://openalex.org/C169069869","wikidata":"https://www.wikidata.org/wiki/Q5477546","display_name":"Fractional programming","level":4,"score":0.32429999113082886},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.31679999828338623},{"id":"https://openalex.org/C2982854036","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference alignment","level":4,"score":0.31150001287460327},{"id":"https://openalex.org/C101765175","wikidata":"https://www.wikidata.org/wiki/Q577764","display_name":"Communications system","level":2,"score":0.3109999895095825},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.30979999899864197},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.3082999885082245},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.30799999833106995},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.30390000343322754},{"id":"https://openalex.org/C137836250","wikidata":"https://www.wikidata.org/wiki/Q984063","display_name":"Optimization problem","level":2,"score":0.29919999837875366},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.29159998893737793},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.2806999981403351},{"id":"https://openalex.org/C206468330","wikidata":"https://www.wikidata.org/wiki/Q834373","display_name":"Code rate","level":3,"score":0.2791999876499176},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.27869999408721924},{"id":"https://openalex.org/C111335779","wikidata":"https://www.wikidata.org/wiki/Q3454686","display_name":"Reduction (mathematics)","level":2,"score":0.2786000072956085},{"id":"https://openalex.org/C13944312","wikidata":"https://www.wikidata.org/wiki/Q7512748","display_name":"Signal-to-noise ratio (imaging)","level":2,"score":0.2745000123977661},{"id":"https://openalex.org/C41045048","wikidata":"https://www.wikidata.org/wiki/Q202843","display_name":"Linear programming","level":2,"score":0.2736000120639801},{"id":"https://openalex.org/C112680207","wikidata":"https://www.wikidata.org/wiki/Q714886","display_name":"Regular polygon","level":2,"score":0.260699987411499},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.2590999901294708}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/twc.2025.3617921","is_oa":false,"landing_page_url":"https://doi.org/10.1109/twc.2025.3617921","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":29,"referenced_works":["https://openalex.org/W653761051","https://openalex.org/W1997834106","https://openalex.org/W2019606325","https://openalex.org/W2085425663","https://openalex.org/W2107861471","https://openalex.org/W2155951048","https://openalex.org/W2963673880","https://openalex.org/W2972473258","https://openalex.org/W3006143078","https://openalex.org/W3038047043","https://openalex.org/W3045474221","https://openalex.org/W3118514023","https://openalex.org/W3194620979","https://openalex.org/W4286569736","https://openalex.org/W4312330321","https://openalex.org/W4317038426","https://openalex.org/W4385732470","https://openalex.org/W4386523619","https://openalex.org/W4386824700","https://openalex.org/W4388052968","https://openalex.org/W4388286383","https://openalex.org/W4390496060","https://openalex.org/W4393972738","https://openalex.org/W4399602376","https://openalex.org/W4400111426","https://openalex.org/W4401693301","https://openalex.org/W4403183400","https://openalex.org/W4406355732","https://openalex.org/W4411171838"],"related_works":[],"abstract_inverted_index":{"In":[0],"this":[1],"paper,":[2],"we":[3,85,101],"consider":[4],"transmit":[5,46,61,121],"beamforming":[6],"in":[7,158],"distributed":[8],"integrated":[9],"sensing":[10,40,53],"and":[11,52,60,69,82,110],"communication":[12,51],"(ISAC)":[13],"systems":[14,97],"with":[15,76,98,152],"large":[16,95],"arrays.":[17],"We":[18,64],"propose":[19],"generalized":[20],"sparse":[21,45],"coordinated":[22],"multipoint":[23],"transmission":[24],"(GS-CoMP),":[25],"a":[26,32,77,87,103,130],"novel":[27],"coordination":[28],"strategy":[29],"that":[30,117],"serves":[31],"carefully":[33],"selected":[34],"subset":[35],"of":[36,80,155],"UEs":[37],"while":[38,128],"simultaneously":[39],"targets.":[41],"Our":[42],"approach":[43],"designs":[44],"precoders":[47],"to":[48,124,148],"ensure":[49],"desired":[50],"signal-to-interference-plus-noise":[54],"ratios":[55],"(SINRs),":[56],"balancing":[57],"backhaul":[58,133],"rate":[59,134],"power":[62,108,122],"requirements.":[63],"focus":[65],"on":[66,107],"both":[67],"unstructured":[68,83],"line-of-sight":[70],"(LoS)":[71],"scenarios.":[72],"For":[73,94],"the":[74,141],"setting":[75],"moderate":[78],"number":[79],"antennas":[81],"channels,":[84,100],"present":[86],"convex":[88],"semidefinite":[89],"programming":[90],"(SDP)-based":[91],"iterative":[92],"solver.":[93],"array":[96],"LoS":[99],"introduce":[102],"low-complexity":[104,143],"method":[105],"based":[106],"allocation":[109],"spatial":[111],"window":[112],"design.":[113],"Numerical":[114],"simulations":[115],"show":[116],"GS-CoMP":[118],"significantly":[119],"reduces":[120],"compared":[123],"limited":[125],"cooperation":[126],"schemes":[127],"requiring":[129],"much":[131],"lower":[132],"than":[135],"fully":[136],"cooperative":[137],"DISAC":[138],"systems.":[139],"Additionally,":[140],"proposed":[142],"methods":[144],"achieve":[145],"performance":[146],"comparable":[147],"full":[149],"SDP-based":[150],"precoding":[151],"several":[153],"orders":[154],"magnitude":[156],"reduction":[157],"runtime.":[159]},"counts_by_year":[],"updated_date":"2026-03-07T16:01:11.037858","created_date":"2025-10-14T00:00:00"}