{"id":"https://openalex.org/W2963396154","doi":"https://doi.org/10.1109/glocom.2017.8254888","title":"How Often Should CSI Be Updated for Massive MIMO Systems with Massive Connectivity?","display_name":"How Often Should CSI Be Updated for Massive MIMO Systems with Massive Connectivity?","publication_year":2017,"publication_date":"2017-12-01","ids":{"openalex":"https://openalex.org/W2963396154","doi":"https://doi.org/10.1109/glocom.2017.8254888","mag":"2963396154"},"language":"en","primary_location":{"id":"doi:10.1109/glocom.2017.8254888","is_oa":false,"landing_page_url":"https://doi.org/10.1109/glocom.2017.8254888","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"GLOBECOM 2017 - 2017 IEEE Global Communications Conference","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/A5020798769","display_name":"Ruichen Deng","orcid":null},"institutions":[{"id":"https://openalex.org/I99065089","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Ruichen Deng","raw_affiliation_strings":["Dept. of Electron. Eng., Tsinghua Univ., Beijing, China","Department of Electronic Engineering, Tsinghua University, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Dept. of Electron. Eng., Tsinghua Univ., Beijing, China","institution_ids":["https://openalex.org/I99065089"]},{"raw_affiliation_string":"Department of Electronic Engineering, Tsinghua University, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5008150938","display_name":"Zhiyuan Jiang","orcid":"https://orcid.org/0000-0002-8522-5721"},"institutions":[{"id":"https://openalex.org/I99065089","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhiyuan Jiang","raw_affiliation_strings":["Dept. of Electron. Eng., Tsinghua Univ., Beijing, China","Department of Electronic Engineering, Tsinghua University, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Dept. of Electron. Eng., Tsinghua Univ., Beijing, China","institution_ids":["https://openalex.org/I99065089"]},{"raw_affiliation_string":"Department of Electronic Engineering, Tsinghua University, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5021120517","display_name":"Sheng Zhou","orcid":"https://orcid.org/0000-0003-0651-0071"},"institutions":[{"id":"https://openalex.org/I99065089","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Sheng Zhou","raw_affiliation_strings":["Dept. of Electron. Eng., Tsinghua Univ., Beijing, China","Department of Electronic Engineering, Tsinghua University, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Dept. of Electron. Eng., Tsinghua Univ., Beijing, China","institution_ids":["https://openalex.org/I99065089"]},{"raw_affiliation_string":"Department of Electronic Engineering, Tsinghua University, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5079749340","display_name":"Zhisheng Niu","orcid":"https://orcid.org/0000-0003-0420-2024"},"institutions":[{"id":"https://openalex.org/I99065089","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhisheng Niu","raw_affiliation_strings":["Dept. of Electron. Eng., Tsinghua Univ., Beijing, China","Department of Electronic Engineering, Tsinghua University, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Dept. of Electron. Eng., Tsinghua Univ., Beijing, China","institution_ids":["https://openalex.org/I99065089"]},{"raw_affiliation_string":"Department of Electronic Engineering, Tsinghua University, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5020798769"],"corresponding_institution_ids":["https://openalex.org/I99065089"],"apc_list":null,"apc_paid":null,"fwci":1.1467,"has_fulltext":false,"cited_by_count":10,"citation_normalized_percentile":{"value":0.80862414,"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":"1","last_page":"6"},"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/T12079","display_name":"IoT Networks and Protocols","score":0.9987000226974487,"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/T11409","display_name":"Advanced Wireless Network Optimization","score":0.9986000061035156,"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/computer-science","display_name":"Computer science","score":0.7997416853904724},{"id":"https://openalex.org/keywords/overhead","display_name":"Overhead (engineering)","score":0.7891638278961182},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.7518535256385803},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.7471159100532532},{"id":"https://openalex.org/keywords/channel-state-information","display_name":"Channel state information","score":0.659821629524231},{"id":"https://openalex.org/keywords/exploit","display_name":"Exploit","score":0.6166412234306335},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5182875990867615},{"id":"https://openalex.org/keywords/transmission","display_name":"Transmission (telecommunications)","score":0.5158492922782898},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.43829092383384705},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.3482891917228699},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.33770906925201416},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.2265106439590454},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.07626909017562866}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7997416853904724},{"id":"https://openalex.org/C2779960059","wikidata":"https://www.wikidata.org/wiki/Q7113681","display_name":"Overhead (engineering)","level":2,"score":0.7891638278961182},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.7518535256385803},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.7471159100532532},{"id":"https://openalex.org/C148063708","wikidata":"https://www.wikidata.org/wiki/Q5072511","display_name":"Channel state information","level":3,"score":0.659821629524231},{"id":"https://openalex.org/C165696696","wikidata":"https://www.wikidata.org/wiki/Q11287","display_name":"Exploit","level":2,"score":0.6166412234306335},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5182875990867615},{"id":"https://openalex.org/C761482","wikidata":"https://www.wikidata.org/wiki/Q118093","display_name":"Transmission (telecommunications)","level":2,"score":0.5158492922782898},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.43829092383384705},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.3482891917228699},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.33770906925201416},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.2265106439590454},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.07626909017562866},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/glocom.2017.8254888","is_oa":false,"landing_page_url":"https://doi.org/10.1109/glocom.2017.8254888","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"GLOBECOM 2017 - 2017 IEEE Global Communications Conference","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":16,"referenced_works":["https://openalex.org/W1615320266","https://openalex.org/W1970113402","https://openalex.org/W2036030019","https://openalex.org/W2059335839","https://openalex.org/W2076457767","https://openalex.org/W2121315337","https://openalex.org/W2132247362","https://openalex.org/W2133203703","https://openalex.org/W2141682101","https://openalex.org/W2142015064","https://openalex.org/W2145013959","https://openalex.org/W2149743051","https://openalex.org/W2238937638","https://openalex.org/W2587375609","https://openalex.org/W3098350033","https://openalex.org/W4250589301"],"related_works":["https://openalex.org/W17155033","https://openalex.org/W3207760230","https://openalex.org/W1496222301","https://openalex.org/W2059045613","https://openalex.org/W4313028534","https://openalex.org/W884630482","https://openalex.org/W2025723618","https://openalex.org/W2552025594","https://openalex.org/W2800473611","https://openalex.org/W4211013851"],"abstract_inverted_index":{"Multiuser":[0],"multiple-input":[1],"multiple-output":[2],"(MIMO)":[3],"systems":[4,25],"suffer":[5],"from":[6],"a":[7,84],"huge":[8],"overhead":[9,103],"of":[10,16,19,30,42,53,60,63,79,98,104],"channel":[11,43],"estimation":[12,34,100],"for":[13],"the":[14,17,24,40,46,50,58,61,66,75,96,102],"application":[15],"Internet":[18],"things":[20],"(IoT),":[21],"which":[22],"demands":[23],"to":[26,38,93],"support":[27],"massive":[28],"connectivity":[29],"users.":[31],"An":[32],"intermittent":[33],"scheme":[35],"is":[36,91],"proposed":[37],"ease":[39],"burden":[41],"acquisition.":[44,106],"In":[45],"scheme,":[47],"we":[48],"exploit":[49],"temporal":[51],"correlation":[52],"MIMO":[54],"channels":[55],"and":[56,101],"analyze":[57],"influence":[59],"age":[62],"CSI":[64,76,88,99,105],"on":[65],"downlink":[67],"transmission":[68],"rate":[69],"using":[70],"linear":[71],"precoders.":[72],"We":[73],"show":[74],"updating":[77,89],"interval":[78],"each":[80],"user":[81],"should":[82],"follow":[83],"quasi-periodic":[85],"distribution.":[86],"The":[87],"frequency":[90],"optimized":[92],"balance":[94],"between":[95],"accuracy":[97]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2020,"cited_by_count":4},{"year":2019,"cited_by_count":3},{"year":2018,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}