{"id":"https://openalex.org/W4289713098","doi":"https://doi.org/10.1109/isit50566.2022.9834422","title":"Extended Placement Delivery Arrays for Multi-Antenna Coded Caching Scheme","display_name":"Extended Placement Delivery Arrays for Multi-Antenna Coded Caching Scheme","publication_year":2022,"publication_date":"2022-06-26","ids":{"openalex":"https://openalex.org/W4289713098","doi":"https://doi.org/10.1109/isit50566.2022.9834422"},"language":"en","primary_location":{"id":"doi:10.1109/isit50566.2022.9834422","is_oa":false,"landing_page_url":"https://doi.org/10.1109/isit50566.2022.9834422","pdf_url":null,"source":{"id":"https://openalex.org/S4363604560","display_name":"2022 IEEE International Symposium on Information Theory (ISIT)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2022 IEEE International Symposium on Information Theory (ISIT)","raw_type":"proceedings-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/A5030167148","display_name":"K. K. Krishnan Namboodiri","orcid":null},"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":"K. K. Krishnan Namboodiri","raw_affiliation_strings":["Indian Institute of Science,Department of Electrical Communication Engineering,Bengaluru,India","Department of Electrical Communication Engineering, Indian Institute of Science, Bengaluru, India"],"affiliations":[{"raw_affiliation_string":"Indian Institute of Science,Department of Electrical Communication Engineering,Bengaluru,India","institution_ids":["https://openalex.org/I59270414"]},{"raw_affiliation_string":"Department of Electrical Communication Engineering, Indian Institute of Science, Bengaluru, India","institution_ids":["https://openalex.org/I59270414"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5014894300","display_name":"Elizabath Peter","orcid":"https://orcid.org/0000-0002-6292-3156"},"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":"Elizabath Peter","raw_affiliation_strings":["Indian Institute of Science,Department of Electrical Communication Engineering,Bengaluru,India","Department of Electrical Communication Engineering, Indian Institute of Science, Bengaluru, India"],"affiliations":[{"raw_affiliation_string":"Indian Institute of Science,Department of Electrical Communication Engineering,Bengaluru,India","institution_ids":["https://openalex.org/I59270414"]},{"raw_affiliation_string":"Department of Electrical Communication Engineering, Indian Institute of Science, Bengaluru, India","institution_ids":["https://openalex.org/I59270414"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5015398340","display_name":"B. Sundar Rajan","orcid":"https://orcid.org/0000-0002-7847-0200"},"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":"B. Sundar Rajan","raw_affiliation_strings":["Indian Institute of Science,Department of Electrical Communication Engineering,Bengaluru,India","Department of Electrical Communication Engineering, Indian Institute of Science, Bengaluru, India"],"affiliations":[{"raw_affiliation_string":"Indian Institute of Science,Department of Electrical Communication Engineering,Bengaluru,India","institution_ids":["https://openalex.org/I59270414"]},{"raw_affiliation_string":"Department of Electrical Communication Engineering, Indian Institute of Science, Bengaluru, India","institution_ids":["https://openalex.org/I59270414"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5030167148"],"corresponding_institution_ids":["https://openalex.org/I59270414"],"apc_list":null,"apc_paid":null,"fwci":0.8648,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.66629588,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":97},"biblio":{"volume":null,"issue":null,"first_page":"1518","last_page":"1523"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11478","display_name":"Caching and Content Delivery","score":0.9994000196456909,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"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/T11478","display_name":"Caching and Content Delivery","score":0.9994000196456909,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"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/T10796","display_name":"Cooperative Communication and Network Coding","score":0.9973000288009644,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"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/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.9713000059127808,"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/scheme","display_name":"Scheme (mathematics)","score":0.6460418105125427},{"id":"https://openalex.org/keywords/integer","display_name":"Integer (computer science)","score":0.6298125982284546},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.559007465839386},{"id":"https://openalex.org/keywords/antenna","display_name":"Antenna (radio)","score":0.501652717590332},{"id":"https://openalex.org/keywords/cache","display_name":"Cache","score":0.4818654954433441},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.37622421979904175},{"id":"https://openalex.org/keywords/topology","display_name":"Topology (electrical circuits)","score":0.3623524308204651},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.34494322538375854},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.33138805627822876},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.326601505279541},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.2999710440635681},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.1610601842403412},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.09453290700912476},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.06304466724395752}],"concepts":[{"id":"https://openalex.org/C77618280","wikidata":"https://www.wikidata.org/wiki/Q1155772","display_name":"Scheme (mathematics)","level":2,"score":0.6460418105125427},{"id":"https://openalex.org/C97137487","wikidata":"https://www.wikidata.org/wiki/Q729138","display_name":"Integer (computer science)","level":2,"score":0.6298125982284546},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.559007465839386},{"id":"https://openalex.org/C21822782","wikidata":"https://www.wikidata.org/wiki/Q131214","display_name":"Antenna (radio)","level":2,"score":0.501652717590332},{"id":"https://openalex.org/C115537543","wikidata":"https://www.wikidata.org/wiki/Q165596","display_name":"Cache","level":2,"score":0.4818654954433441},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.37622421979904175},{"id":"https://openalex.org/C184720557","wikidata":"https://www.wikidata.org/wiki/Q7825049","display_name":"Topology (electrical circuits)","level":2,"score":0.3623524308204651},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.34494322538375854},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.33138805627822876},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.326601505279541},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2999710440635681},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.1610601842403412},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.09453290700912476},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.06304466724395752}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/isit50566.2022.9834422","is_oa":false,"landing_page_url":"https://doi.org/10.1109/isit50566.2022.9834422","pdf_url":null,"source":{"id":"https://openalex.org/S4363604560","display_name":"2022 IEEE International Symposium on Information Theory (ISIT)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2022 IEEE International Symposium on Information Theory (ISIT)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Peace, Justice and strong institutions","id":"https://metadata.un.org/sdg/16","score":0.6600000262260437}],"awards":[],"funders":[{"id":"https://openalex.org/F4320310071","display_name":"Indian Institute of Science","ror":"https://ror.org/04dese585"},{"id":"https://openalex.org/F4320320719","display_name":"Department of Science and Technology, Ministry of Science and Technology, India","ror":"https://ror.org/0101xrq71"},{"id":"https://openalex.org/F4320322724","display_name":"Ministry of Education, India","ror":"https://ror.org/048xjjh50"},{"id":"https://openalex.org/F4320334771","display_name":"Science and Engineering Research Board","ror":"https://ror.org/03ffdsr55"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":20,"referenced_works":["https://openalex.org/W2106248279","https://openalex.org/W2169897889","https://openalex.org/W2767375015","https://openalex.org/W2885217635","https://openalex.org/W2962880523","https://openalex.org/W2963345310","https://openalex.org/W2963664701","https://openalex.org/W2968366816","https://openalex.org/W2982340075","https://openalex.org/W3009788104","https://openalex.org/W3047343001","https://openalex.org/W3098870865","https://openalex.org/W3100546252","https://openalex.org/W3206048928","https://openalex.org/W4206392704","https://openalex.org/W4384787984","https://openalex.org/W6755647483","https://openalex.org/W6767119081","https://openalex.org/W6783793940","https://openalex.org/W6810358485"],"related_works":["https://openalex.org/W2372542233","https://openalex.org/W2356060994","https://openalex.org/W3207948819","https://openalex.org/W2957999883","https://openalex.org/W1584412374","https://openalex.org/W3215728913","https://openalex.org/W2371447506","https://openalex.org/W2351491280","https://openalex.org/W3045948023","https://openalex.org/W1977367240"],"abstract_inverted_index":{"The":[0,47,128],"multi-antenna":[1,96,217],"coded":[2,84,97,134,150],"caching":[3,85,98,135,151],"problem,":[4],"where":[5,175,207],"the":[6,24,27,81,104,115,122,148,160,215,223,246],"server":[7,28,105],"having":[8],"L":[9,107,144,204],"transmit":[10,108],"antennas":[11],"communicating":[12],"to":[13,75],"K":[14,101,190,197],"users":[15],"through":[16],"a":[17,30,41,60,67,77,88,95,138,228],"wireless":[18],"broadcast":[19],"link,":[20],"is":[21,38,73,137,157,171,179,211,236],"addressed.":[22],"In":[23,214],"problem":[25],"setting,":[26],"has":[29],"library":[31],"of":[32,44,49,59,141,164,185],"N":[33],"files,":[34],"and":[35,64,103,121,195],"each":[36],"user":[37],"equipped":[39],"with":[40,100,106,143],"dedicated":[42],"cache":[43],"capacity":[45],"M.":[46],"idea":[48],"extended":[50],"placement":[51,129],"delivery":[52,123,130],"array":[53,56,131],"(EPDA),":[54],"an":[55,180,212],"which":[57,114],"consists":[58],"special":[61,139],"symbol":[62],"\u22c6":[63],"integers":[65],"in":[66,113,245],"set":[68],"{1,":[69],"2,":[70],"\u2026,":[71],"S},":[72],"proposed":[74],"obtain":[76],"novel":[78],"solution":[79],"for":[80],"aforementioned":[82],"multiantenna":[83,149],"problem.":[86],"From":[87],"(K,":[89],"L,":[90,174,194],"F,":[91],"Z,":[92],"S)":[93],"EPDA,":[94],"scheme":[99],"users,":[102],"antennas,":[109],"can":[110,168],"be":[111,169],"obtained":[112],"normalized":[116],"memory":[117],"$\\frac{M}{N}":[118],"=":[119,126,145,177,191,198],"\\frac{Z}{F}$,":[120],"time":[124],"$T":[125],"\\frac{S}{F}$.":[127],"(for":[132],"single-antenna":[133],"scheme)":[136],"class":[140],"EPDAs":[142,186,221],"1.":[146],"For":[147],"schemes":[152,218,244],"constructed":[153],"from":[154,219],"EPDAs,":[155],"it":[156],"shown":[158],"that":[159,167,239],"maximum":[161],"possible":[162],"Degree":[163],"Freedom":[165],"(DoF)":[166],"achieved":[170],"t":[172,192],"+":[173,193,200],"$t":[176],"\\frac{{KM}}{N}$":[178],"integer.":[181,213],"Furthermore,":[182],"two":[183],"constructions":[184],"are":[187],"proposed:":[188],"a)":[189],"b)":[196],"nt":[199],"(n":[201],"\u2212":[202],"1)L,":[203],"\u2265":[205,209],"t,":[206],"n":[208],"2":[210],"resulting":[216],"those":[220],"achieve":[222],"full":[224],"DoF,":[225],"while":[226],"requiring":[227],"subpacketization":[229,234],"number":[230,235],"$\\frac{K}{{\\gcd":[231],"(K,t,L)}}$.":[232],"This":[233],"less":[237],"than":[238],"required":[240],"by":[241],"previously":[242],"known":[243],"literature.":[247]},"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":3}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}