{"id":"https://openalex.org/W4214949735","doi":"https://doi.org/10.1109/ieeeconf53345.2021.9723180","title":"Distributed Dimension Reduction for Distributed Massive MIMO C-RAN with Finite Fronthaul Capacity","display_name":"Distributed Dimension Reduction for Distributed Massive MIMO C-RAN with Finite Fronthaul Capacity","publication_year":2021,"publication_date":"2021-10-31","ids":{"openalex":"https://openalex.org/W4214949735","doi":"https://doi.org/10.1109/ieeeconf53345.2021.9723180"},"language":"en","primary_location":{"id":"doi:10.1109/ieeeconf53345.2021.9723180","is_oa":false,"landing_page_url":"https://doi.org/10.1109/ieeeconf53345.2021.9723180","pdf_url":null,"source":{"id":"https://openalex.org/S4363607877","display_name":"2021 55th Asilomar Conference on Signals, Systems, and Computers","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":"2021 55th Asilomar Conference on Signals, Systems, and Computers","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/A5000577865","display_name":"Fred Wiffen","orcid":null},"institutions":[{"id":"https://openalex.org/I1292669757","display_name":"Toshiba (Japan)","ror":"https://ror.org/0326v3z14","country_code":"JP","type":"company","lineage":["https://openalex.org/I1292669757"]},{"id":"https://openalex.org/I36234482","display_name":"University of Bristol","ror":"https://ror.org/0524sp257","country_code":"GB","type":"education","lineage":["https://openalex.org/I36234482"]},{"id":"https://openalex.org/I4210150981","display_name":"Toshiba (United States)","ror":"https://ror.org/051vpgk97","country_code":"US","type":"company","lineage":["https://openalex.org/I1292669757","https://openalex.org/I4210150981"]}],"countries":["GB","JP","US"],"is_corresponding":true,"raw_author_name":"Fred Wiffen","raw_affiliation_strings":["University of Bristol,Department of Electrical & Electronic Engineering,U.K","Bristol Research & Innovation Laboratory, Toshiba Europe Limited, U.K"],"affiliations":[{"raw_affiliation_string":"University of Bristol,Department of Electrical & Electronic Engineering,U.K","institution_ids":["https://openalex.org/I36234482"]},{"raw_affiliation_string":"Bristol Research & Innovation Laboratory, Toshiba Europe Limited, U.K","institution_ids":["https://openalex.org/I1292669757","https://openalex.org/I4210150981"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5056854421","display_name":"Woon Hau Chin","orcid":"https://orcid.org/0000-0002-7637-8988"},"institutions":[{"id":"https://openalex.org/I2800524328","display_name":"Viavi Solutions (United States)","ror":"https://ror.org/059a9e323","country_code":"US","type":"company","lineage":["https://openalex.org/I2800524328"]},{"id":"https://openalex.org/I36234482","display_name":"University of Bristol","ror":"https://ror.org/0524sp257","country_code":"GB","type":"education","lineage":["https://openalex.org/I36234482"]}],"countries":["GB","US"],"is_corresponding":false,"raw_author_name":"Woon Hau Chin","raw_affiliation_strings":["University of Bristol,Department of Electrical & Electronic Engineering,U.K","Viavi Solutions, Stevenage, U.K"],"affiliations":[{"raw_affiliation_string":"University of Bristol,Department of Electrical & Electronic Engineering,U.K","institution_ids":["https://openalex.org/I36234482"]},{"raw_affiliation_string":"Viavi Solutions, Stevenage, U.K","institution_ids":["https://openalex.org/I2800524328"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5090998891","display_name":"Angela Doufexi","orcid":"https://orcid.org/0000-0003-0133-6676"},"institutions":[{"id":"https://openalex.org/I36234482","display_name":"University of Bristol","ror":"https://ror.org/0524sp257","country_code":"GB","type":"education","lineage":["https://openalex.org/I36234482"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Angela Doufexi","raw_affiliation_strings":["University of Bristol,Department of Electrical & Electronic Engineering,U.K"],"affiliations":[{"raw_affiliation_string":"University of Bristol,Department of Electrical & Electronic Engineering,U.K","institution_ids":["https://openalex.org/I36234482"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5000577865"],"corresponding_institution_ids":["https://openalex.org/I1292669757","https://openalex.org/I36234482","https://openalex.org/I4210150981"],"apc_list":null,"apc_paid":null,"fwci":3.8946,"has_fulltext":false,"cited_by_count":15,"citation_normalized_percentile":{"value":0.9573667,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":null,"issue":null,"first_page":"1228","last_page":"1236"},"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/T10936","display_name":"Millimeter-Wave Propagation and Modeling","score":0.9993000030517578,"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/T12791","display_name":"Full-Duplex Wireless Communications","score":0.9993000030517578,"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/telecommunications-link","display_name":"Telecommunications link","score":0.7998462915420532},{"id":"https://openalex.org/keywords/precoding","display_name":"Precoding","score":0.7597008347511292},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.6608508825302124},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5846255421638489},{"id":"https://openalex.org/keywords/reduction","display_name":"Reduction (mathematics)","score":0.5735358595848083},{"id":"https://openalex.org/keywords/c-ran","display_name":"C-RAN","score":0.5203477740287781},{"id":"https://openalex.org/keywords/dimensionality-reduction","display_name":"Dimensionality reduction","score":0.4224832355976105},{"id":"https://openalex.org/keywords/dimension","display_name":"Dimension (graph theory)","score":0.42008745670318604},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.3474544882774353},{"id":"https://openalex.org/keywords/radio-access-network","display_name":"Radio access network","score":0.34668126702308655},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.30072474479675293},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.2719186544418335},{"id":"https://openalex.org/keywords/base-station","display_name":"Base station","score":0.1800459623336792},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.08349549770355225}],"concepts":[{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.7998462915420532},{"id":"https://openalex.org/C160562895","wikidata":"https://www.wikidata.org/wiki/Q7239557","display_name":"Precoding","level":4,"score":0.7597008347511292},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.6608508825302124},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5846255421638489},{"id":"https://openalex.org/C111335779","wikidata":"https://www.wikidata.org/wiki/Q3454686","display_name":"Reduction (mathematics)","level":2,"score":0.5735358595848083},{"id":"https://openalex.org/C2779765720","wikidata":"https://www.wikidata.org/wiki/Q5005908","display_name":"C-RAN","level":5,"score":0.5203477740287781},{"id":"https://openalex.org/C70518039","wikidata":"https://www.wikidata.org/wiki/Q16000077","display_name":"Dimensionality reduction","level":2,"score":0.4224832355976105},{"id":"https://openalex.org/C33676613","wikidata":"https://www.wikidata.org/wiki/Q13415176","display_name":"Dimension (graph theory)","level":2,"score":0.42008745670318604},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.3474544882774353},{"id":"https://openalex.org/C106365562","wikidata":"https://www.wikidata.org/wiki/Q3078360","display_name":"Radio access network","level":4,"score":0.34668126702308655},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.30072474479675293},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.2719186544418335},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.1800459623336792},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.08349549770355225},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C207029474","wikidata":"https://www.wikidata.org/wiki/Q384018","display_name":"Mobile station","level":3,"score":0.0},{"id":"https://openalex.org/C202444582","wikidata":"https://www.wikidata.org/wiki/Q837863","display_name":"Pure mathematics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/ieeeconf53345.2021.9723180","is_oa":false,"landing_page_url":"https://doi.org/10.1109/ieeeconf53345.2021.9723180","pdf_url":null,"source":{"id":"https://openalex.org/S4363607877","display_name":"2021 55th Asilomar Conference on Signals, Systems, and Computers","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":"2021 55th Asilomar Conference on Signals, Systems, and Computers","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":13,"referenced_works":["https://openalex.org/W218580582","https://openalex.org/W2004101329","https://openalex.org/W2068712429","https://openalex.org/W2089105767","https://openalex.org/W2102929596","https://openalex.org/W2106929598","https://openalex.org/W2149527114","https://openalex.org/W2166816543","https://openalex.org/W2299676078","https://openalex.org/W2381074797","https://openalex.org/W2592659251","https://openalex.org/W2799355783","https://openalex.org/W3036338694"],"related_works":["https://openalex.org/W3141240674","https://openalex.org/W2592537445","https://openalex.org/W2117039245","https://openalex.org/W2497039592","https://openalex.org/W4287262510","https://openalex.org/W2436923341","https://openalex.org/W3138350675","https://openalex.org/W2902173727","https://openalex.org/W2064969374","https://openalex.org/W3011943308"],"abstract_inverted_index":{"The":[0],"use":[1,42],"of":[2,6,12,43,103,140,166],"a":[3,10,72,88,101,109,134,167],"large":[4],"excess":[5],"service":[7],"antennas":[8],"brings":[9],"variety":[11],"performance":[13],"benefits":[14],"to":[15,55,77],"distributed":[16],"MIMO":[17,198],"C-RAN,":[18],"but":[19],"the":[20,41,63,66,93,104,180],"corresponding":[21],"high":[22],"fronthaul":[23,34,58,190],"data":[24],"loads":[25],"can":[26,126,161,183],"be":[27,162],"problematic":[28],"in":[29,133,154,197],"practical":[30],"systems":[31,156],"with":[32,108],"limited":[33],"capacity.":[35],"In":[36],"this":[37,57],"work":[38],"we":[39],"propose":[40],"lossy":[44],"dimension":[45,74,95,130,158,170],"reduction,":[46],"applied":[47],"locally":[48],"at":[49],"each":[50,69,124],"remote":[51],"radio":[52],"head":[53],"(RRH),":[54],"reduce":[56,185],"traffic.":[59],"We":[60,150],"first":[61],"consider":[62],"uplink,":[64],"and":[65,145,175,188],"case":[67],"where":[68],"RRH":[70,125],"applies":[71],"linear":[73],"reduction":[75,96,131,159],"filter":[76,132],"its":[78,128,141],"multiantenna":[79],"received":[80],"signal":[81],"vector.":[82],"It":[83],"is":[84],"shown":[85],"that":[86,123,153,179],"under":[87],"joint":[89],"mutual":[90],"information":[91],"criteria,":[92],"optimal":[94],"filters":[97,118,160],"are":[98,119],"given":[99],"by":[100],"variant":[102],"conditional":[105],"Karhunen-Loeve":[106],"transform,":[107],"stationary":[110],"point":[111],"found":[112],"using":[113,137],"block":[114],"co-ordinate":[115],"ascent.":[116],"These":[117],"then":[120,151],"modified":[121],"such":[122],"calculate":[127],"own":[129,142],"decentralised":[135],"manner,":[136],"knowledge":[138],"only":[139],"instantaneous":[143],"channel":[144],"network":[146],"slow":[147],"fading":[148],"coefficients.":[149],"show":[152],"TDD":[155],"these":[157],"re-used":[163],"as":[164],"part":[165],"two-stage":[168],"reduced":[169],"downlink":[171,189],"precoding":[172],"scheme.":[173],"Analysis":[174],"numerical":[176],"results":[177],"demonstrate":[178],"proposed":[181],"approach":[182],"significantly":[184],"both":[186],"uplink":[187],"traffic":[191],"whilst":[192],"incurring":[193],"very":[194],"little":[195],"loss":[196],"performance.":[199]},"counts_by_year":[{"year":2025,"cited_by_count":6},{"year":2024,"cited_by_count":4},{"year":2023,"cited_by_count":4},{"year":2022,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}