{"id":"https://openalex.org/W7123336301","doi":"https://doi.org/10.1109/tcomm.2026.3652494","title":"Cross-Rack Update Bandwidth for Rack-Aware Storage Systems","display_name":"Cross-Rack Update Bandwidth for Rack-Aware Storage Systems","publication_year":2026,"publication_date":"2026-01-01","ids":{"openalex":"https://openalex.org/W7123336301","doi":"https://doi.org/10.1109/tcomm.2026.3652494"},"language":null,"primary_location":{"id":"doi:10.1109/tcomm.2026.3652494","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcomm.2026.3652494","pdf_url":null,"source":{"id":"https://openalex.org/S196647941","display_name":"IEEE Transactions on Communications","issn_l":"0090-6778","issn":["0090-6778","1558-0857"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310316002","host_organization_name":"IEEE Communications Society","host_organization_lineage":["https://openalex.org/P4310316002","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Communications Society","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 Communications","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/A5114734261","display_name":"Zhengyi Jiang","orcid":"https://orcid.org/0000-0002-2060-1108"},"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":"Zhengyi Jiang","raw_affiliation_strings":["Department of Mathematics Sciences, Tsinghua University, Beijing, China"],"raw_orcid":"https://orcid.org/0000-0002-2060-1108","affiliations":[{"raw_affiliation_string":"Department of Mathematics Sciences, Tsinghua University, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Bin Yu","orcid":"https://orcid.org/0009-0007-6500-5127"},"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":"Bin Yu","raw_affiliation_strings":["Department of Mathematics Sciences, Tsinghua University, Beijing, China"],"raw_orcid":"https://orcid.org/0009-0007-6500-5127","affiliations":[{"raw_affiliation_string":"Department of Mathematics Sciences, Tsinghua University, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Zhongyi Huang","orcid":"https://orcid.org/0000-0002-5623-4864"},"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":"Zhongyi Huang","raw_affiliation_strings":["Department of Mathematics Sciences, Tsinghua University, Beijing, China"],"raw_orcid":"https://orcid.org/0000-0002-5623-4864","affiliations":[{"raw_affiliation_string":"Department of Mathematics Sciences, Tsinghua University, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5121016176","display_name":"Linqi Song","orcid":null},"institutions":[{"id":"https://openalex.org/I168719708","display_name":"City University of Hong Kong","ror":"https://ror.org/03q8dnn23","country_code":"HK","type":"education","lineage":["https://openalex.org/I168719708"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Linqi Song","raw_affiliation_strings":["Department of Computer Science, City University of Hong Kong, Kowloon Tong, Hong Kong"],"raw_orcid":"https://orcid.org/0000-0003-2756-4984","affiliations":[{"raw_affiliation_string":"Department of Computer Science, City University of Hong Kong, Kowloon Tong, Hong Kong","institution_ids":["https://openalex.org/I168719708"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Bo Bai","orcid":"https://orcid.org/0000-0003-4796-8249"},"institutions":[{"id":"https://openalex.org/I2250955327","display_name":"Huawei Technologies (China)","ror":"https://ror.org/00cmhce21","country_code":"CN","type":"company","lineage":["https://openalex.org/I2250955327"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Bo Bai","raw_affiliation_strings":["Theory Laboratory, Central Research Institute, 2012 Laboratories, Huawei Technologies Company Ltd., Hong Kong, SAR, China"],"raw_orcid":"https://orcid.org/0000-0003-4796-8249","affiliations":[{"raw_affiliation_string":"Theory Laboratory, Central Research Institute, 2012 Laboratories, Huawei Technologies Company Ltd., Hong Kong, SAR, China","institution_ids":["https://openalex.org/I2250955327"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5008592381","display_name":"G. Zhang","orcid":null},"institutions":[{"id":"https://openalex.org/I2250955327","display_name":"Huawei Technologies (China)","ror":"https://ror.org/00cmhce21","country_code":"CN","type":"company","lineage":["https://openalex.org/I2250955327"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Gong Zhang","raw_affiliation_strings":["Theory Laboratory, Central Research Institute, 2012 Laboratories, Huawei Technologies Company Ltd., Hong Kong, SAR, China"],"raw_orcid":"https://orcid.org/0000-0003-0283-7050","affiliations":[{"raw_affiliation_string":"Theory Laboratory, Central Research Institute, 2012 Laboratories, Huawei Technologies Company Ltd., Hong Kong, SAR, China","institution_ids":["https://openalex.org/I2250955327"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5039863234","display_name":"Hanxu Hou","orcid":"https://orcid.org/0000-0001-7328-9341"},"institutions":[{"id":"https://openalex.org/I2799850029","display_name":"Dongguan University of Technology","ror":"https://ror.org/01m8p7q42","country_code":"CN","type":"education","lineage":["https://openalex.org/I2799850029"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Hanxu Hou","raw_affiliation_strings":["Dongguan University of Technology, Dongguan, China"],"raw_orcid":"https://orcid.org/0000-0001-7328-9341","affiliations":[{"raw_affiliation_string":"Dongguan University of Technology, Dongguan, China","institution_ids":["https://openalex.org/I2799850029"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.03902172,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"74","issue":null,"first_page":"3252","last_page":"3266"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11181","display_name":"Advanced Data Storage Technologies","score":0.9980999827384949,"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/T11181","display_name":"Advanced Data Storage Technologies","score":0.9980999827384949,"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/T10772","display_name":"Distributed systems and fault tolerance","score":0.00039999998989515007,"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/T11478","display_name":"Caching and Content Delivery","score":0.0003000000142492354,"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/erasure-code","display_name":"Erasure code","score":0.7843000292778015},{"id":"https://openalex.org/keywords/upper-and-lower-bounds","display_name":"Upper and lower bounds","score":0.6819999814033508},{"id":"https://openalex.org/keywords/bandwidth","display_name":"Bandwidth (computing)","score":0.603600025177002},{"id":"https://openalex.org/keywords/redundancy","display_name":"Redundancy (engineering)","score":0.5831000208854675},{"id":"https://openalex.org/keywords/erasure","display_name":"Erasure","score":0.49900001287460327},{"id":"https://openalex.org/keywords/distributed-data-store","display_name":"Distributed data store","score":0.4715000092983246},{"id":"https://openalex.org/keywords/decoding-methods","display_name":"Decoding methods","score":0.43050000071525574}],"concepts":[{"id":"https://openalex.org/C137529215","wikidata":"https://www.wikidata.org/wiki/Q5385031","display_name":"Erasure code","level":3,"score":0.7843000292778015},{"id":"https://openalex.org/C77553402","wikidata":"https://www.wikidata.org/wiki/Q13222579","display_name":"Upper and lower bounds","level":2,"score":0.6819999814033508},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.609499990940094},{"id":"https://openalex.org/C2776257435","wikidata":"https://www.wikidata.org/wiki/Q1576430","display_name":"Bandwidth (computing)","level":2,"score":0.603600025177002},{"id":"https://openalex.org/C152124472","wikidata":"https://www.wikidata.org/wiki/Q1204361","display_name":"Redundancy (engineering)","level":2,"score":0.5831000208854675},{"id":"https://openalex.org/C2778790127","wikidata":"https://www.wikidata.org/wiki/Q484885","display_name":"Erasure","level":2,"score":0.49900001287460327},{"id":"https://openalex.org/C24885549","wikidata":"https://www.wikidata.org/wiki/Q339678","display_name":"Distributed data store","level":2,"score":0.4715000092983246},{"id":"https://openalex.org/C57273362","wikidata":"https://www.wikidata.org/wiki/Q576722","display_name":"Decoding methods","level":2,"score":0.43050000071525574},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3781999945640564},{"id":"https://openalex.org/C101765175","wikidata":"https://www.wikidata.org/wiki/Q577764","display_name":"Communications system","level":2,"score":0.32690000534057617},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.32100000977516174},{"id":"https://openalex.org/C52622258","wikidata":"https://www.wikidata.org/wiki/Q131222","display_name":"Information theory","level":2,"score":0.3174999952316284},{"id":"https://openalex.org/C2400350","wikidata":"https://www.wikidata.org/wiki/Q1752667","display_name":"Linear code","level":4,"score":0.2985000014305115},{"id":"https://openalex.org/C179518139","wikidata":"https://www.wikidata.org/wiki/Q5140297","display_name":"Coding (social sciences)","level":2,"score":0.2939000129699707},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.2888000011444092},{"id":"https://openalex.org/C2985529240","wikidata":"https://www.wikidata.org/wiki/Q193395","display_name":"Digital storage","level":2,"score":0.28029999136924744},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.2639000117778778},{"id":"https://openalex.org/C73150493","wikidata":"https://www.wikidata.org/wiki/Q853922","display_name":"Hamming code","level":4,"score":0.2574999928474426},{"id":"https://openalex.org/C194739806","wikidata":"https://www.wikidata.org/wiki/Q66221","display_name":"Computer data storage","level":2,"score":0.2556000053882599},{"id":"https://openalex.org/C157125643","wikidata":"https://www.wikidata.org/wiki/Q884707","display_name":"Block code","level":3,"score":0.2549999952316284}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tcomm.2026.3652494","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcomm.2026.3652494","pdf_url":null,"source":{"id":"https://openalex.org/S196647941","display_name":"IEEE Transactions on Communications","issn_l":"0090-6778","issn":["0090-6778","1558-0857"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310316002","host_organization_name":"IEEE Communications Society","host_organization_lineage":["https://openalex.org/P4310316002","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Communications Society","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 Communications","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G1126705714","display_name":"\u673a\u67b6\u7ed3\u6784\u6570\u636e\u4e2d\u5fc3\u7684\u9ad8\u6027\u80fd\u5b58\u50a8\u7f16\u7801\u7814\u7a76","funder_award_id":"62071121","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G1164716283","display_name":null,"funder_award_id":"61901115","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G3643945900","display_name":null,"funder_award_id":"62371411","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G6144354176","display_name":null,"funder_award_id":"12025104","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G6663150026","display_name":null,"funder_award_id":"No. 62071121","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G8965963615","display_name":null,"funder_award_id":"2020YFA0712300","funder_id":"https://openalex.org/F4320335777","funder_display_name":"National Key Research and Development Program of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320335777","display_name":"National Key Research and Development Program of China","ror":null}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":41,"referenced_works":["https://openalex.org/W1488265384","https://openalex.org/W2001163076","https://openalex.org/W2018102393","https://openalex.org/W2055835320","https://openalex.org/W2056207853","https://openalex.org/W2062295219","https://openalex.org/W2069026918","https://openalex.org/W2086523507","https://openalex.org/W2104812861","https://openalex.org/W2105185344","https://openalex.org/W2124961791","https://openalex.org/W2137115614","https://openalex.org/W2137291643","https://openalex.org/W2147343704","https://openalex.org/W2166011389","https://openalex.org/W2168738664","https://openalex.org/W2625724326","https://openalex.org/W2743142859","https://openalex.org/W2804607912","https://openalex.org/W2908383142","https://openalex.org/W2956089011","https://openalex.org/W2963020638","https://openalex.org/W2963177950","https://openalex.org/W2963745302","https://openalex.org/W2963754880","https://openalex.org/W2970808367","https://openalex.org/W2978757494","https://openalex.org/W3010113848","https://openalex.org/W3021980012","https://openalex.org/W3080326768","https://openalex.org/W3080727594","https://openalex.org/W3153558581","https://openalex.org/W3175833167","https://openalex.org/W3195574700","https://openalex.org/W3196987148","https://openalex.org/W3206422952","https://openalex.org/W3215932162","https://openalex.org/W4289713233","https://openalex.org/W4392153497","https://openalex.org/W4401693484","https://openalex.org/W4401693881"],"related_works":[],"abstract_inverted_index":{"Rack-aware":[0],"storage":[1,5,87],"systems":[2],"organize":[3],"the":[4,11,20,30,36,62,75,92,109,123,131,148,154,169,175,181,194,209,230],"nodes":[6],"in":[7,203],"racks":[8,44],"such":[9],"that":[10,60,113,151,166,180,222],"cross-rack":[12,31,63,78,97,103,171],"communication":[13,22],"cost":[14],"is":[15,54],"much":[16],"more":[17],"expensive":[18],"than":[19],"intra-rack":[21,190,213,234],"cost.":[23],"In":[24],"this":[25],"paper,":[26],"we":[27,73,90,121,159,188,220],"primarily":[28],"investigate":[29],"update":[32,47,64,79,98,104,172,191,205,214,235],"bandwidth":[33,80,105,173,192,215],"defined":[34,129],"as":[35,70,108,130,147,193],"average":[37,195],"amount":[38,196],"of":[39,49,77,81,134,163,197,212,216,233],"symbols":[40,136,198],"transferred":[41],"across":[42],"different":[43],"during":[45],"an":[46,204],"process":[48],"one":[50,201],"single":[51],"node.":[52],"It":[53],"critical":[55],"to":[56],"design":[57],"erasure":[58],"codes":[59,84,107,112,146,150,165,225],"minimize":[61],"bandwidth.":[65,236],"Our":[66],"main":[67],"contributions":[68],"are":[69,185],"follows.":[71],"First,":[72],"establish":[74],"model":[76],"irregular":[82,110],"array":[83,111],"over":[85],"rack-aware":[86],"systems.":[88],"Second,":[89],"derive":[91,122,208],"tight":[93,117,124],"lower":[94,118,125,156,183,210,231],"bound":[95,126,211,232],"on":[96,127],"bandwidth,":[99],"and":[100,140,174,207],"define":[101,141,189],"minimum":[102,142,170,176],"(MCUB)":[106],"can":[114,152,227],"achieve":[115,153,167,229],"our":[116,223],"bound.":[119,157],"Third,":[120],"redundancy":[128,143,155],"total":[132],"number":[133],"parity":[135],"for":[137],"MCUB":[138,144,149,217,224],"codes,":[139],"(MR-MCUB)":[145],"Fourth,":[158],"present":[160],"explicit":[161],"constructions":[162,226],"MR-MCUB":[164],"both":[168],"redundancy,":[177],"which":[178],"means":[179],"two":[182],"bounds":[184],"tight.":[186],"Last,":[187],"incurred":[199],"within":[200],"rack":[202],"process,":[206],"codes.":[218],"Moreover,":[219],"show":[221],"also":[228]},"counts_by_year":[],"updated_date":"2026-01-26T23:06:41.788003","created_date":"2026-01-14T00:00:00"}
