{"id":"https://openalex.org/W4312920223","doi":"https://doi.org/10.1109/twc.2022.3228481","title":"C-RAN Zero-Forcing With Imperfect CSI: Analysis and Precode &amp; Quantize Feedback","display_name":"C-RAN Zero-Forcing With Imperfect CSI: Analysis and Precode &amp; Quantize Feedback","publication_year":2022,"publication_date":"2022-12-19","ids":{"openalex":"https://openalex.org/W4312920223","doi":"https://doi.org/10.1109/twc.2022.3228481"},"language":"en","primary_location":{"id":"doi:10.1109/twc.2022.3228481","is_oa":true,"landing_page_url":"https://doi.org/10.1109/twc.2022.3228481","pdf_url":"https://ieeexplore.ieee.org/ielx7/7693/4656680/09991976.pdf","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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","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":true,"oa_status":"hybrid","oa_url":"https://ieeexplore.ieee.org/ielx7/7693/4656680/09991976.pdf","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5020343921","display_name":"Niv Arad","orcid":null},"institutions":[{"id":"https://openalex.org/I13955877","display_name":"Bar-Ilan University","ror":"https://ror.org/03kgsv495","country_code":"IL","type":"education","lineage":["https://openalex.org/I13955877"]}],"countries":["IL"],"is_corresponding":false,"raw_author_name":"Niv Arad","raw_affiliation_strings":["Faculty of Engineering, Bar-Ilan University, Ramat-Gan, Israel"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Faculty of Engineering, Bar-Ilan University, Ramat-Gan, Israel","institution_ids":["https://openalex.org/I13955877"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5003405265","display_name":"Yair Noam","orcid":"https://orcid.org/0000-0002-5281-6787"},"institutions":[{"id":"https://openalex.org/I13955877","display_name":"Bar-Ilan University","ror":"https://ror.org/03kgsv495","country_code":"IL","type":"education","lineage":["https://openalex.org/I13955877"]}],"countries":["IL"],"is_corresponding":false,"raw_author_name":"Yair Noam","raw_affiliation_strings":["Faculty of Engineering, Bar-Ilan University, Ramat-Gan, Israel"],"raw_orcid":"https://orcid.org/0000-0002-5281-6787","affiliations":[{"raw_affiliation_string":"Faculty of Engineering, Bar-Ilan University, Ramat-Gan, Israel","institution_ids":["https://openalex.org/I13955877"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I13955877"],"apc_list":null,"apc_paid":null,"fwci":0.0744,"has_fulltext":true,"cited_by_count":3,"citation_normalized_percentile":{"value":0.35728998,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":91,"max":98},"biblio":{"volume":"22","issue":"7","first_page":"4773","last_page":"4787"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","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/T10148","display_name":"Advanced MIMO Systems Optimization","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/T10796","display_name":"Cooperative Communication and Network Coding","score":0.9998000264167786,"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/T10575","display_name":"Wireless Communication Networks Research","score":0.9994999766349792,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7692932486534119},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.7271444797515869},{"id":"https://openalex.org/keywords/channel-state-information","display_name":"Channel state information","score":0.7136961221694946},{"id":"https://openalex.org/keywords/overhead","display_name":"Overhead (engineering)","score":0.6676292419433594},{"id":"https://openalex.org/keywords/precoding","display_name":"Precoding","score":0.6491221785545349},{"id":"https://openalex.org/keywords/transmission","display_name":"Transmission (telecommunications)","score":0.4928319454193115},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.4872404634952545},{"id":"https://openalex.org/keywords/upper-and-lower-bounds","display_name":"Upper and lower bounds","score":0.4623052179813385},{"id":"https://openalex.org/keywords/throughput","display_name":"Throughput","score":0.4254522919654846},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.3311392068862915},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.258914589881897},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.2258501946926117},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.21211248636245728},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.12961599230766296}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7692932486534119},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.7271444797515869},{"id":"https://openalex.org/C148063708","wikidata":"https://www.wikidata.org/wiki/Q5072511","display_name":"Channel state information","level":3,"score":0.7136961221694946},{"id":"https://openalex.org/C2779960059","wikidata":"https://www.wikidata.org/wiki/Q7113681","display_name":"Overhead (engineering)","level":2,"score":0.6676292419433594},{"id":"https://openalex.org/C160562895","wikidata":"https://www.wikidata.org/wiki/Q7239557","display_name":"Precoding","level":4,"score":0.6491221785545349},{"id":"https://openalex.org/C761482","wikidata":"https://www.wikidata.org/wiki/Q118093","display_name":"Transmission (telecommunications)","level":2,"score":0.4928319454193115},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.4872404634952545},{"id":"https://openalex.org/C77553402","wikidata":"https://www.wikidata.org/wiki/Q13222579","display_name":"Upper and lower bounds","level":2,"score":0.4623052179813385},{"id":"https://openalex.org/C157764524","wikidata":"https://www.wikidata.org/wiki/Q1383412","display_name":"Throughput","level":3,"score":0.4254522919654846},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.3311392068862915},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.258914589881897},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.2258501946926117},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.21211248636245728},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.12961599230766296},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/twc.2022.3228481","is_oa":true,"landing_page_url":"https://doi.org/10.1109/twc.2022.3228481","pdf_url":"https://ieeexplore.ieee.org/ielx7/7693/4656680/09991976.pdf","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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Wireless Communications","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.1109/twc.2022.3228481","is_oa":true,"landing_page_url":"https://doi.org/10.1109/twc.2022.3228481","pdf_url":"https://ieeexplore.ieee.org/ielx7/7693/4656680/09991976.pdf","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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Wireless Communications","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4312920223.pdf","grobid_xml":"https://content.openalex.org/works/W4312920223.grobid-xml"},"referenced_works_count":52,"referenced_works":["https://openalex.org/W1492244479","https://openalex.org/W1788288079","https://openalex.org/W1969580672","https://openalex.org/W1996887948","https://openalex.org/W1997834106","https://openalex.org/W1998579408","https://openalex.org/W1999188628","https://openalex.org/W2011550466","https://openalex.org/W2019606325","https://openalex.org/W2038021890","https://openalex.org/W2064969374","https://openalex.org/W2074120933","https://openalex.org/W2076560628","https://openalex.org/W2099238939","https://openalex.org/W2100462538","https://openalex.org/W2102759463","https://openalex.org/W2116141601","https://openalex.org/W2119454814","https://openalex.org/W2125865271","https://openalex.org/W2148449647","https://openalex.org/W2149370333","https://openalex.org/W2164290759","https://openalex.org/W2170999895","https://openalex.org/W2177812198","https://openalex.org/W2215226200","https://openalex.org/W2295253609","https://openalex.org/W2504767107","https://openalex.org/W2570971038","https://openalex.org/W2586555641","https://openalex.org/W2592659251","https://openalex.org/W2607982032","https://openalex.org/W2612460387","https://openalex.org/W2739040955","https://openalex.org/W2895059999","https://openalex.org/W2906128097","https://openalex.org/W2921902834","https://openalex.org/W2922989912","https://openalex.org/W2935934300","https://openalex.org/W2963159821","https://openalex.org/W2963718307","https://openalex.org/W2964338899","https://openalex.org/W2964661155","https://openalex.org/W2966223819","https://openalex.org/W2984290601","https://openalex.org/W2985994751","https://openalex.org/W3043607572","https://openalex.org/W3113926943","https://openalex.org/W3184379106","https://openalex.org/W3212075771","https://openalex.org/W6655197114","https://openalex.org/W6787919609","https://openalex.org/W6799122676"],"related_works":["https://openalex.org/W3141240674","https://openalex.org/W2116541631","https://openalex.org/W2167568384","https://openalex.org/W2514205366","https://openalex.org/W3173074004","https://openalex.org/W1976511355","https://openalex.org/W2544668827","https://openalex.org/W2082469387","https://openalex.org/W1985632843","https://openalex.org/W2800473611"],"abstract_inverted_index":{"Downlink":[0],"joint":[1,34,79,121],"transmission":[2],"by":[3],"a":[4,58,68,104,124,129],"cluster":[5],"of":[6,151],"remote":[7],"radio-heads":[8],"(RRHs)":[9],"is":[10,57,103],"essential":[11],"for":[12,75,120],"enhancing":[13],"throughput":[14],"in":[15,170],"future":[16],"cellular":[17],"networks.":[18],"This":[19,50],"method":[20],"requires":[21],"global":[22,118],"channel":[23],"state":[24],"information":[25],"(CSI)":[26],"at":[27,89],"the":[28,33,45,63,72,90,101,112,149,157,163,171],"processing":[29],"unit":[30],"that":[31,48,109,133,138],"designs":[32],"precoder.":[35],"To":[36],"this":[37,160],"end,":[38],"extensive":[39],"CSI":[40,84,106,119,158],"must":[41],"be":[42,140],"shared":[43],"between":[44],"RRHs":[46],"and":[47],"unit.":[49],"paper":[51],"proposes":[52],"two":[53],"contributions.":[54],"The":[55,94],"first":[56],"new":[59,105],"upper":[60],"bound":[61,70],"on":[62,71],"rate":[64,74,165],"loss,":[65],"which":[66,97],"implies":[67],"lower":[69],"achievable":[73],"an":[76],"RRHs-cluster":[77],"employing":[78],"zero-forcing":[80],"(ZF)":[81],"with":[82,85,116,144],"incomplete":[83],"single-user":[86],"decoding":[87],"(SUD)":[88],"mobile":[91],"stations":[92],"(MSs).":[93],"second":[95],"contribution,":[96],"follows":[98],"insights":[99],"from":[100],"bound,":[102],"sharing":[107,152],"scheme":[108,161],"drastically":[110],"reduces":[111,162],"significant":[113],"overhead":[114,150],"associated":[115],"acquiring":[117],"transmission.":[122],"In":[123,154],"nutshell,":[125],"each":[126,168],"RRH":[127,169],"applies":[128],"local":[130],"precoding":[131],"matrix":[132],"creates":[134],"low-dimensional":[135],"effective":[136],"channels":[137],"can":[139],"quantized":[141],"more":[142],"accurately":[143],"fewer":[145],"bits,":[146],"thereby":[147],"reducing":[148],"CSI.":[153],"addition":[155],"to":[156,167],"sharing-overhead,":[159],"data":[164],"delivered":[166],"cluster.":[172]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":1}],"updated_date":"2026-07-23T08:03:31.855105","created_date":"2025-10-10T00:00:00"}
