{"id":"https://openalex.org/W2594871207","doi":"https://doi.org/10.1109/tvt.2017.2678601","title":"Precoder Designs for MIMO Gaussian Multiple Access Wiretap Channels","display_name":"Precoder Designs for MIMO Gaussian Multiple Access Wiretap Channels","publication_year":2017,"publication_date":"2017-03-06","ids":{"openalex":"https://openalex.org/W2594871207","doi":"https://doi.org/10.1109/tvt.2017.2678601","mag":"2594871207"},"language":"en","primary_location":{"id":"doi:10.1109/tvt.2017.2678601","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tvt.2017.2678601","pdf_url":null,"source":{"id":"https://openalex.org/S10936095","display_name":"IEEE Transactions on Vehicular Technology","issn_l":"0018-9545","issn":["0018-9545","1939-9359"],"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 Vehicular Technology","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/A5100667504","display_name":"Hoon Lee","orcid":"https://orcid.org/0000-0003-0753-8324"},"institutions":[{"id":"https://openalex.org/I197347611","display_name":"Korea University","ror":"https://ror.org/047dqcg40","country_code":"KR","type":"education","lineage":["https://openalex.org/I197347611"]}],"countries":["KR"],"is_corresponding":true,"raw_author_name":"Hoon Lee","raw_affiliation_strings":["School of Electrical Engineering, Korea University, Seoul, South Korea"],"affiliations":[{"raw_affiliation_string":"School of Electrical Engineering, Korea University, Seoul, South Korea","institution_ids":["https://openalex.org/I197347611"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5083703040","display_name":"Changick Song","orcid":"https://orcid.org/0000-0002-5325-3699"},"institutions":[{"id":"https://openalex.org/I119575151","display_name":"Korea National University of Transportation","ror":"https://ror.org/03qqbe534","country_code":"KR","type":"education","lineage":["https://openalex.org/I119575151"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Changick Song","raw_affiliation_strings":["Department of Information and Communications Engineering, Korea National University of Transportation, Chungju, South Korea"],"affiliations":[{"raw_affiliation_string":"Department of Information and Communications Engineering, Korea National University of Transportation, Chungju, South Korea","institution_ids":["https://openalex.org/I119575151"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5052712180","display_name":"Jihwan Moon","orcid":"https://orcid.org/0000-0002-9812-7768"},"institutions":[{"id":"https://openalex.org/I197347611","display_name":"Korea University","ror":"https://ror.org/047dqcg40","country_code":"KR","type":"education","lineage":["https://openalex.org/I197347611"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Jihwan Moon","raw_affiliation_strings":["School of Electrical Engineering, Korea University, Seoul, South Korea"],"affiliations":[{"raw_affiliation_string":"School of Electrical Engineering, Korea University, Seoul, South Korea","institution_ids":["https://openalex.org/I197347611"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100697614","display_name":"Inkyu Lee","orcid":"https://orcid.org/0000-0003-3701-4433"},"institutions":[{"id":"https://openalex.org/I197347611","display_name":"Korea University","ror":"https://ror.org/047dqcg40","country_code":"KR","type":"education","lineage":["https://openalex.org/I197347611"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Inkyu Lee","raw_affiliation_strings":["School of Electrical Engineering, Korea University, Seoul, South Korea"],"affiliations":[{"raw_affiliation_string":"School of Electrical Engineering, Korea University, Seoul, South Korea","institution_ids":["https://openalex.org/I197347611"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5100667504"],"corresponding_institution_ids":["https://openalex.org/I197347611"],"apc_list":null,"apc_paid":null,"fwci":1.8934,"has_fulltext":false,"cited_by_count":23,"citation_normalized_percentile":{"value":0.86401995,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":"66","issue":"9","first_page":"8563","last_page":"8568"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10964","display_name":"Wireless Communication Security Techniques","score":1.0,"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/T10964","display_name":"Wireless Communication Security Techniques","score":1.0,"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/T11392","display_name":"Energy Harvesting in Wireless Networks","score":0.9890999794006348,"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/T12131","display_name":"Wireless Signal Modulation Classification","score":0.9818999767303467,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/precoding","display_name":"Precoding","score":0.7769394516944885},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.7710310220718384},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.55455482006073},{"id":"https://openalex.org/keywords/optimization-problem","display_name":"Optimization problem","score":0.5058910250663757},{"id":"https://openalex.org/keywords/convex-optimization","display_name":"Convex optimization","score":0.4983038902282715},{"id":"https://openalex.org/keywords/karush\u2013kuhn\u2013tucker-conditions","display_name":"Karush\u2013Kuhn\u2013Tucker conditions","score":0.4849288761615753},{"id":"https://openalex.org/keywords/computational-complexity-theory","display_name":"Computational complexity theory","score":0.4797602593898773},{"id":"https://openalex.org/keywords/gaussian","display_name":"Gaussian","score":0.47401362657546997},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.45366767048835754},{"id":"https://openalex.org/keywords/transmitter-power-output","display_name":"Transmitter power output","score":0.4306093454360962},{"id":"https://openalex.org/keywords/binary-number","display_name":"Binary number","score":0.4151785373687744},{"id":"https://openalex.org/keywords/power","display_name":"Power (physics)","score":0.41239702701568604},{"id":"https://openalex.org/keywords/control-theory","display_name":"Control theory (sociology)","score":0.3345329761505127},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.33058154582977295},{"id":"https://openalex.org/keywords/regular-polygon","display_name":"Regular polygon","score":0.29772335290908813},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.26057887077331543},{"id":"https://openalex.org/keywords/transmitter","display_name":"Transmitter","score":0.2507590651512146},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.18573492765426636},{"id":"https://openalex.org/keywords/control","display_name":"Control (management)","score":0.1828429400920868},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.11738485097885132}],"concepts":[{"id":"https://openalex.org/C160562895","wikidata":"https://www.wikidata.org/wiki/Q7239557","display_name":"Precoding","level":4,"score":0.7769394516944885},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.7710310220718384},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.55455482006073},{"id":"https://openalex.org/C137836250","wikidata":"https://www.wikidata.org/wiki/Q984063","display_name":"Optimization problem","level":2,"score":0.5058910250663757},{"id":"https://openalex.org/C157972887","wikidata":"https://www.wikidata.org/wiki/Q463359","display_name":"Convex optimization","level":3,"score":0.4983038902282715},{"id":"https://openalex.org/C50454189","wikidata":"https://www.wikidata.org/wiki/Q2075125","display_name":"Karush\u2013Kuhn\u2013Tucker conditions","level":2,"score":0.4849288761615753},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.4797602593898773},{"id":"https://openalex.org/C163716315","wikidata":"https://www.wikidata.org/wiki/Q901177","display_name":"Gaussian","level":2,"score":0.47401362657546997},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.45366767048835754},{"id":"https://openalex.org/C65422117","wikidata":"https://www.wikidata.org/wiki/Q358527","display_name":"Transmitter power output","level":4,"score":0.4306093454360962},{"id":"https://openalex.org/C48372109","wikidata":"https://www.wikidata.org/wiki/Q3913","display_name":"Binary number","level":2,"score":0.4151785373687744},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.41239702701568604},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.3345329761505127},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.33058154582977295},{"id":"https://openalex.org/C112680207","wikidata":"https://www.wikidata.org/wiki/Q714886","display_name":"Regular polygon","level":2,"score":0.29772335290908813},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.26057887077331543},{"id":"https://openalex.org/C47798520","wikidata":"https://www.wikidata.org/wiki/Q190157","display_name":"Transmitter","level":3,"score":0.2507590651512146},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.18573492765426636},{"id":"https://openalex.org/C2775924081","wikidata":"https://www.wikidata.org/wiki/Q55608371","display_name":"Control (management)","level":2,"score":0.1828429400920868},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.11738485097885132},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C94375191","wikidata":"https://www.wikidata.org/wiki/Q11205","display_name":"Arithmetic","level":1,"score":0.0},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/tvt.2017.2678601","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tvt.2017.2678601","pdf_url":null,"source":{"id":"https://openalex.org/S10936095","display_name":"IEEE Transactions on Vehicular Technology","issn_l":"0018-9545","issn":["0018-9545","1939-9359"],"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 Vehicular Technology","raw_type":"journal-article"},{"id":"pmh:oai:scholarworks.unist.ac.kr:201301/65731","is_oa":false,"landing_page_url":"https://ieeexplore.ieee.org/document/7872496","pdf_url":null,"source":{"id":"https://openalex.org/S4306401118","display_name":"Scholarworks@UNIST (Ulsan National Institute of Science and Technology)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I48566637","host_organization_name":"Ulsan National Institute of Science and Technology","host_organization_lineage":["https://openalex.org/I48566637"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"ARTICLE"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G201986144","display_name":null,"funder_award_id":"NRF-2015R1C1A1A02036927","funder_id":"https://openalex.org/F4320322030","funder_display_name":"Ministry of Science, ICT and Future Planning"}],"funders":[{"id":"https://openalex.org/F4320320671","display_name":"National Research Foundation","ror":"https://ror.org/05s0g1g46"},{"id":"https://openalex.org/F4320322030","display_name":"Ministry of Science, ICT and Future Planning","ror":"https://ror.org/032e49973"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":30,"referenced_works":["https://openalex.org/W1864541922","https://openalex.org/W1914491816","https://openalex.org/W1965903274","https://openalex.org/W1967956032","https://openalex.org/W1970334960","https://openalex.org/W1979288787","https://openalex.org/W2008201585","https://openalex.org/W2030546921","https://openalex.org/W2043769961","https://openalex.org/W2095214648","https://openalex.org/W2106473863","https://openalex.org/W2114755738","https://openalex.org/W2115613211","https://openalex.org/W2115843455","https://openalex.org/W2129457795","https://openalex.org/W2147348113","https://openalex.org/W2148672861","https://openalex.org/W2149912746","https://openalex.org/W2151488545","https://openalex.org/W2170310805","https://openalex.org/W2210084516","https://openalex.org/W2273754775","https://openalex.org/W2291902925","https://openalex.org/W2293739961","https://openalex.org/W2296319761","https://openalex.org/W2569631219","https://openalex.org/W2620656463","https://openalex.org/W4250589301","https://openalex.org/W6641868592","https://openalex.org/W6694571416"],"related_works":["https://openalex.org/W2155858901","https://openalex.org/W2491194410","https://openalex.org/W4382519099","https://openalex.org/W1988754299","https://openalex.org/W4328011863","https://openalex.org/W834972196","https://openalex.org/W2896145927","https://openalex.org/W3205703960","https://openalex.org/W3195000156","https://openalex.org/W2112045043"],"abstract_inverted_index":{"This":[0],"paper":[1],"studies":[2],"multiple-input":[3,113],"multiple-output":[4,125],"multiple":[5,19],"access":[6],"wiretap":[7],"channels":[8],"(MAC-WT)":[9],"where":[10],"an":[11],"eavesdropper":[12],"tries":[13],"to":[14,39],"tap":[15],"the":[16,35,41,53,75,81,88,93,97,106,130,133],"communication":[17],"between":[18],"legitimate":[20,24],"transmitters":[21,36],"and":[22],"a":[23,62],"receiver.":[25],"In":[26],"this":[27,47],"system,":[28],"we":[29,60],"propose":[30],"precoder":[31],"optimization":[32],"methods":[33],"at":[34],"in":[37],"order":[38],"maximize":[40],"sum":[42],"secrecy":[43],"rate":[44],"performance.":[45],"Although":[46],"problem":[48],"can":[49],"be":[50],"solved":[51],"by":[52],"well-known":[54],"difference":[55],"of":[56,74,132],"convex":[57],"(DC)":[58],"programming,":[59],"present":[61],"more":[63],"efficient":[64],"algorithm":[65,91,108],"whose":[66],"computational":[67],"complexity":[68],"is":[69,85,121],"much":[70],"lower":[71],"than":[72],"that":[73,87,105],"conventional":[76,98],"DC":[77,99],"approach.":[78],"By":[79],"investigating":[80],"Karush-Kuhn-Tucker":[82],"conditions,":[83],"it":[84],"confirmed":[86],"proposed":[89,107,134],"low-complexity":[90],"achieves":[92],"same":[94],"performance":[95],"as":[96],"method.":[100],"Our":[101],"analysis":[102],"also":[103],"reveals":[104],"ensures":[109],"global":[110],"optimality":[111],"for":[112,123],"single-output":[114],"MAC-WT":[115],"cases,":[116],"while":[117],"binary":[118],"power":[119],"control":[120],"optimal":[122],"single-input":[124],"scenarios.":[126],"Simulation":[127],"results":[128],"demonstrate":[129],"efficacy":[131],"precoding":[135],"methods.":[136]},"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":6},{"year":2021,"cited_by_count":3},{"year":2020,"cited_by_count":2},{"year":2019,"cited_by_count":5},{"year":2018,"cited_by_count":6}],"updated_date":"2026-03-20T23:20:44.827607","created_date":"2025-10-10T00:00:00"}