{"id":"https://openalex.org/W7092296138","doi":"https://doi.org/10.1109/tsp.2025.3602387","title":"Rate-Optimal Power Allocation for MIMO Channels Under Joint Total and Per-Group Power Constraints","display_name":"Rate-Optimal Power Allocation for MIMO Channels Under Joint Total and Per-Group Power Constraints","publication_year":2025,"publication_date":"2025-01-01","ids":{"openalex":"https://openalex.org/W7092296138","doi":"https://doi.org/10.1109/tsp.2025.3602387"},"language":null,"primary_location":{"id":"doi:10.1109/tsp.2025.3602387","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tsp.2025.3602387","pdf_url":null,"source":{"id":"https://openalex.org/S168680287","display_name":"IEEE Transactions on Signal Processing","issn_l":"1053-587X","issn":["1053-587X","1941-0476"],"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 Signal Processing","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":null,"display_name":"Mahdi Khojastehnia","orcid":"https://orcid.org/0000-0002-8266-397X"},"institutions":[{"id":"https://openalex.org/I67031392","display_name":"Carleton University","ror":"https://ror.org/02qtvee93","country_code":"CA","type":"education","lineage":["https://openalex.org/I67031392"]}],"countries":["CA"],"is_corresponding":true,"raw_author_name":"Mahdi Khojastehnia","raw_affiliation_strings":["Department of Systems and Computer Engineering, Carleton University, Ottawa, Canada"],"affiliations":[{"raw_affiliation_string":"Department of Systems and Computer Engineering, Carleton University, Ottawa, Canada","institution_ids":["https://openalex.org/I67031392"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Ioannis Lambadaris","orcid":"https://orcid.org/0000-0003-4686-9433"},"institutions":[{"id":"https://openalex.org/I67031392","display_name":"Carleton University","ror":"https://ror.org/02qtvee93","country_code":"CA","type":"education","lineage":["https://openalex.org/I67031392"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Ioannis Lambadaris","raw_affiliation_strings":["Department of Systems and Computer Engineering, Carleton University, Ottawa, Canada"],"affiliations":[{"raw_affiliation_string":"Department of Systems and Computer Engineering, Carleton University, Ottawa, Canada","institution_ids":["https://openalex.org/I67031392"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Ramy H. Gohary","orcid":"https://orcid.org/0000-0002-0343-7799"},"institutions":[{"id":"https://openalex.org/I67031392","display_name":"Carleton University","ror":"https://ror.org/02qtvee93","country_code":"CA","type":"education","lineage":["https://openalex.org/I67031392"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Ramy H. Gohary","raw_affiliation_strings":["Department of Systems and Computer Engineering, Carleton University, Ottawa, Canada"],"affiliations":[{"raw_affiliation_string":"Department of Systems and Computer Engineering, Carleton University, Ottawa, Canada","institution_ids":["https://openalex.org/I67031392"]}]},{"author_position":"last","author":{"id":null,"display_name":"Sergey Loyka","orcid":"https://orcid.org/0000-0002-6405-5524"},"institutions":[{"id":"https://openalex.org/I153718931","display_name":"University of Ottawa","ror":"https://ror.org/03c4mmv16","country_code":"CA","type":"education","lineage":["https://openalex.org/I153718931"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Sergey Loyka","raw_affiliation_strings":["School of Electrical Engineering and Computer Science, University of Ottawa, Ottawa, Canada"],"affiliations":[{"raw_affiliation_string":"School of Electrical Engineering and Computer Science, University of Ottawa, Ottawa, Canada","institution_ids":["https://openalex.org/I153718931"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I67031392"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.72446767,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"73","issue":null,"first_page":"4315","last_page":"4330"},"is_retracted":false,"is_paratext":false,"is_xpac":true,"primary_topic":{"id":"https://openalex.org/T10978","display_name":"Prenatal Screening and Diagnostics","score":0.05900000035762787,"subfield":{"id":"https://openalex.org/subfields/2735","display_name":"Pediatrics, Perinatology and Child Health"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T10978","display_name":"Prenatal Screening and Diagnostics","score":0.05900000035762787,"subfield":{"id":"https://openalex.org/subfields/2735","display_name":"Pediatrics, Perinatology and Child Health"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10290","display_name":"Pregnancy and preeclampsia studies","score":0.029899999499320984,"subfield":{"id":"https://openalex.org/subfields/2729","display_name":"Obstetrics and Gynecology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11841","display_name":"Nuclear Structure and Function","score":0.02630000002682209,"subfield":{"id":"https://openalex.org/subfields/1312","display_name":"Molecular Biology"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.7871000170707703},{"id":"https://openalex.org/keywords/channel-state-information","display_name":"Channel state information","score":0.7034000158309937},{"id":"https://openalex.org/keywords/transmitter","display_name":"Transmitter","score":0.637499988079071},{"id":"https://openalex.org/keywords/fading","display_name":"Fading","score":0.616599977016449},{"id":"https://openalex.org/keywords/covariance-matrix","display_name":"Covariance matrix","score":0.59170001745224},{"id":"https://openalex.org/keywords/constraint","display_name":"Constraint (computer-aided design)","score":0.5684000253677368},{"id":"https://openalex.org/keywords/control-theory","display_name":"Control theory (sociology)","score":0.5350000262260437},{"id":"https://openalex.org/keywords/power","display_name":"Power (physics)","score":0.531000018119812},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5242000222206116}],"concepts":[{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.7871000170707703},{"id":"https://openalex.org/C148063708","wikidata":"https://www.wikidata.org/wiki/Q5072511","display_name":"Channel state information","level":3,"score":0.7034000158309937},{"id":"https://openalex.org/C47798520","wikidata":"https://www.wikidata.org/wiki/Q190157","display_name":"Transmitter","level":3,"score":0.637499988079071},{"id":"https://openalex.org/C81978471","wikidata":"https://www.wikidata.org/wiki/Q1196572","display_name":"Fading","level":3,"score":0.616599977016449},{"id":"https://openalex.org/C185142706","wikidata":"https://www.wikidata.org/wiki/Q1134404","display_name":"Covariance matrix","level":2,"score":0.59170001745224},{"id":"https://openalex.org/C2776036281","wikidata":"https://www.wikidata.org/wiki/Q48769818","display_name":"Constraint (computer-aided design)","level":2,"score":0.5684000253677368},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.5350000262260437},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.531000018119812},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5242000222206116},{"id":"https://openalex.org/C65422117","wikidata":"https://www.wikidata.org/wiki/Q358527","display_name":"Transmitter power output","level":4,"score":0.5001999735832214},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4959999918937683},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.45089998841285706},{"id":"https://openalex.org/C130367717","wikidata":"https://www.wikidata.org/wiki/Q189791","display_name":"Diagonal","level":2,"score":0.4431999921798706},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.44020000100135803},{"id":"https://openalex.org/C178650346","wikidata":"https://www.wikidata.org/wiki/Q201984","display_name":"Covariance","level":2,"score":0.4316999912261963},{"id":"https://openalex.org/C160562895","wikidata":"https://www.wikidata.org/wiki/Q7239557","display_name":"Precoding","level":4,"score":0.3720000088214874},{"id":"https://openalex.org/C2777818330","wikidata":"https://www.wikidata.org/wiki/Q1994695","display_name":"Majorization","level":2,"score":0.36070001125335693},{"id":"https://openalex.org/C77553402","wikidata":"https://www.wikidata.org/wiki/Q13222579","display_name":"Upper and lower bounds","level":2,"score":0.3416999876499176},{"id":"https://openalex.org/C18555067","wikidata":"https://www.wikidata.org/wiki/Q8375051","display_name":"Joint (building)","level":2,"score":0.3118000030517578},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.2985999882221222},{"id":"https://openalex.org/C98377741","wikidata":"https://www.wikidata.org/wiki/Q7236514","display_name":"Power gain","level":4,"score":0.2928999960422516},{"id":"https://openalex.org/C13944312","wikidata":"https://www.wikidata.org/wiki/Q7512748","display_name":"Signal-to-noise ratio (imaging)","level":2,"score":0.29019999504089355},{"id":"https://openalex.org/C97744766","wikidata":"https://www.wikidata.org/wiki/Q870845","display_name":"Channel capacity","level":3,"score":0.2824999988079071},{"id":"https://openalex.org/C55660270","wikidata":"https://www.wikidata.org/wiki/Q5164377","display_name":"Constrained optimization","level":2,"score":0.28189998865127563},{"id":"https://openalex.org/C106487976","wikidata":"https://www.wikidata.org/wiki/Q685816","display_name":"Matrix (chemical analysis)","level":2,"score":0.2678000032901764},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.2667999863624573},{"id":"https://openalex.org/C56685638","wikidata":"https://www.wikidata.org/wiki/Q2300474","display_name":"Power control","level":3,"score":0.2653999924659729},{"id":"https://openalex.org/C137836250","wikidata":"https://www.wikidata.org/wiki/Q984063","display_name":"Optimization problem","level":2,"score":0.263700008392334},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.2621000111103058},{"id":"https://openalex.org/C113313756","wikidata":"https://www.wikidata.org/wiki/Q332791","display_name":"Diagonal matrix","level":3,"score":0.25769999623298645}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tsp.2025.3602387","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tsp.2025.3602387","pdf_url":null,"source":{"id":"https://openalex.org/S168680287","display_name":"IEEE Transactions on Signal Processing","issn_l":"1053-587X","issn":["1053-587X","1941-0476"],"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 Signal Processing","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","display_name":"Affordable and clean energy","score":0.526831865310669}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":42,"referenced_works":["https://openalex.org/W1518945650","https://openalex.org/W1540562499","https://openalex.org/W1557486844","https://openalex.org/W1978762830","https://openalex.org/W1997834106","https://openalex.org/W2019562862","https://openalex.org/W2032760019","https://openalex.org/W2037785632","https://openalex.org/W2062216149","https://openalex.org/W2090195299","https://openalex.org/W2094772862","https://openalex.org/W2101055757","https://openalex.org/W2114667903","https://openalex.org/W2115908423","https://openalex.org/W2130509920","https://openalex.org/W2131333812","https://openalex.org/W2132048364","https://openalex.org/W2166064468","https://openalex.org/W2171066806","https://openalex.org/W2238937638","https://openalex.org/W2346131320","https://openalex.org/W2569221055","https://openalex.org/W2593489945","https://openalex.org/W2595209175","https://openalex.org/W2664838204","https://openalex.org/W2735009901","https://openalex.org/W2889492357","https://openalex.org/W2893485220","https://openalex.org/W2900619600","https://openalex.org/W2940821980","https://openalex.org/W2940980277","https://openalex.org/W2950118198","https://openalex.org/W2962702492","https://openalex.org/W2996513152","https://openalex.org/W3011607985","https://openalex.org/W3080577932","https://openalex.org/W3169306614","https://openalex.org/W3206898142","https://openalex.org/W3215435314","https://openalex.org/W4245345046","https://openalex.org/W4250589301","https://openalex.org/W4285285290"],"related_works":[],"abstract_inverted_index":{"We":[0,29,88],"consider":[1],"a":[2,18,24,108,143],"multiple-input":[3],"multiple-output":[4],"(MIMO)":[5],"channel,":[6],"in":[7,142],"which":[8],"the":[9,47,59,62,71,93,97,124,133,139,147],"transmit":[10],"antennas":[11],"are":[12,120,163,176],"partitioned":[13],"into":[14],"groups,":[15],"each":[16,86,101],"with":[17,41,55,113],"per-group":[19],"power":[20,26,126,149],"constraint":[21,27],"(PGPC)":[22],"and":[23,50,61,82,118,169],"total":[25],"(TPC).":[28],"considered":[30],"two":[31],"cases:":[32],"(i)":[33],"right":[34],"unitary-invariant,":[35],"including":[36],"Rayleigh,":[37],"fading":[38],"MIMO":[39,53],"channels":[40,54],"perfect":[42,56],"channel":[43],"state":[44],"information":[45],"at":[46,58],"receiver":[48,63],"(CSI-R),":[49],"(ii)":[51],"massive":[52],"CSI":[57],"transmitter":[60],"(CSI-TR).":[64],"For":[65,103,128],"both":[66],"cases,":[67],"we":[68,106,131],"show":[69,137],"that":[70,138],"rate-optimal":[72,148],"input":[73],"covariance":[74],"matrix":[75],"is":[76],"diagonal,":[77],"implying":[78],"reduced":[79],"design":[80],"complexity":[81],"independent":[83],"signaling":[84],"on":[85],"antenna.":[87,102],"derive":[89,107],"closed-form":[90,161],"expressions":[91,162],"for":[92],"diagonal":[94],"entries,":[95],"i.e.,":[96],"powers":[98],"allocated":[99],"to":[100,110,122,136,151,157,167],"CSI-R":[104],"channels,":[105,130],"criterion":[109],"identify":[111],"groups":[112],"active":[114],"PGPCs.":[115],"Majorization":[116],"theory":[117],"Schur-concavity":[119],"used":[121],"obtain":[123],"optimal":[125],"allocations.":[127],"CSI-TR":[129],"use":[132],"Karush-Kuhn-Tucker":[134],"conditions":[135],"PGPCs":[140],"result":[141],"ceiling":[144],"profile,":[145],"causing":[146],"allocations":[150],"deviate":[152],"from":[153],"standard":[154],"water-filling.":[155],"Compared":[156],"numerical":[158,179],"algorithms,":[159],"our":[160],"significantly":[164],"more":[165],"efficient":[166],"compute":[168],"guarantee":[170],"globally":[171],"optimality.":[172],"Our":[173],"analytical":[174],"findings":[175],"validated":[177],"via":[178],"experiments.":[180]},"counts_by_year":[],"updated_date":"2026-03-27T05:58:40.876381","created_date":"2025-10-18T00:00:00"}
