{"id":"https://openalex.org/W2128377309","doi":"https://doi.org/10.1109/vetecs.2006.1683194","title":"The Effect of Computation and Feedback Delay on the Capacity of Multiuser MIMO Systems in a Small Outdoor Cell","display_name":"The Effect of Computation and Feedback Delay on the Capacity of Multiuser MIMO Systems in a Small Outdoor Cell","publication_year":2006,"publication_date":"2006-09-08","ids":{"openalex":"https://openalex.org/W2128377309","doi":"https://doi.org/10.1109/vetecs.2006.1683194","mag":"2128377309"},"language":"en","primary_location":{"id":"doi:10.1109/vetecs.2006.1683194","is_oa":false,"landing_page_url":"https://doi.org/10.1109/vetecs.2006.1683194","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2006 IEEE 63rd Vehicular Technology Conference","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://research-information.bris.ac.uk/files/2998888/webb_IEEE_vtc_spring2006.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5052077732","display_name":"MW Webb","orcid":null},"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":true,"raw_author_name":"M. Webb","raw_affiliation_strings":["Department of Electrical and Electronic Engineering, University of Bristol, Bristol, UK","Department of Electrical and Electronic Engineering, University of Bristol, Bristol, BS8 1UB, UK. Email: M.W.Webb@bristol.ac.uk"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Electronic Engineering, University of Bristol, Bristol, UK","institution_ids":["https://openalex.org/I36234482"]},{"raw_affiliation_string":"Department of Electrical and Electronic Engineering, University of Bristol, Bristol, BS8 1UB, UK. Email: M.W.Webb@bristol.ac.uk","institution_ids":["https://openalex.org/I36234482"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5060038314","display_name":"Mythri Hunukumbure","orcid":"https://orcid.org/0000-0002-3105-439X"},"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":"M. Hunukumbure","raw_affiliation_strings":["Department of Electrical and Electronic Engineering, University of Bristol, Bristol, UK","Dept. of Electr. & Electron. Eng., Bristol Univ"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Electronic Engineering, University of Bristol, Bristol, UK","institution_ids":["https://openalex.org/I36234482"]},{"raw_affiliation_string":"Dept. of Electr. & Electron. Eng., Bristol Univ","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5081159321","display_name":"Mark A Beach","orcid":"https://orcid.org/0000-0002-6798-7001"},"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":"M. Beach","raw_affiliation_strings":["Department of Electrical and Electronic Engineering, University of Bristol, Bristol, UK","Dept. of Electr. & Electron. Eng., Bristol Univ"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Electronic Engineering, University of Bristol, Bristol, UK","institution_ids":["https://openalex.org/I36234482"]},{"raw_affiliation_string":"Dept. of Electr. & Electron. Eng., Bristol Univ","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5112829338","display_name":"A.R. Nix","orcid":null},"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":"A. Nix","raw_affiliation_strings":["Department of Electrical and Electronic Engineering, University of Bristol, Bristol, UK","Dept. of Electr. & Electron. Eng., Bristol Univ"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Electronic Engineering, University of Bristol, Bristol, UK","institution_ids":["https://openalex.org/I36234482"]},{"raw_affiliation_string":"Dept. of Electr. & Electron. Eng., Bristol Univ","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5052077732"],"corresponding_institution_ids":["https://openalex.org/I36234482"],"apc_list":null,"apc_paid":null,"fwci":1.1493,"has_fulltext":true,"cited_by_count":3,"citation_normalized_percentile":{"value":0.80577439,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"4","issue":null,"first_page":"1988","last_page":"1992"},"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/T11409","display_name":"Advanced Wireless Network Optimization","score":0.9997000098228455,"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":0.9995999932289124,"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/mimo","display_name":"MIMO","score":0.7972696423530579},{"id":"https://openalex.org/keywords/weighting","display_name":"Weighting","score":0.709662675857544},{"id":"https://openalex.org/keywords/convergence","display_name":"Convergence (economics)","score":0.6526232957839966},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5960621237754822},{"id":"https://openalex.org/keywords/computation","display_name":"Computation","score":0.541509211063385},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5368585586547852},{"id":"https://openalex.org/keywords/iterative-method","display_name":"Iterative method","score":0.526342511177063},{"id":"https://openalex.org/keywords/control-theory","display_name":"Control theory (sociology)","score":0.4626401960849762},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.44253721833229065},{"id":"https://openalex.org/keywords/channel-capacity","display_name":"Channel capacity","score":0.43911588191986084},{"id":"https://openalex.org/keywords/block","display_name":"Block (permutation group theory)","score":0.43505820631980896},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.41397497057914734},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.35901910066604614},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.22596994042396545}],"concepts":[{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.7972696423530579},{"id":"https://openalex.org/C183115368","wikidata":"https://www.wikidata.org/wiki/Q856577","display_name":"Weighting","level":2,"score":0.709662675857544},{"id":"https://openalex.org/C2777303404","wikidata":"https://www.wikidata.org/wiki/Q759757","display_name":"Convergence (economics)","level":2,"score":0.6526232957839966},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5960621237754822},{"id":"https://openalex.org/C45374587","wikidata":"https://www.wikidata.org/wiki/Q12525525","display_name":"Computation","level":2,"score":0.541509211063385},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5368585586547852},{"id":"https://openalex.org/C159694833","wikidata":"https://www.wikidata.org/wiki/Q2321565","display_name":"Iterative method","level":2,"score":0.526342511177063},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.4626401960849762},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.44253721833229065},{"id":"https://openalex.org/C97744766","wikidata":"https://www.wikidata.org/wiki/Q870845","display_name":"Channel capacity","level":3,"score":0.43911588191986084},{"id":"https://openalex.org/C2777210771","wikidata":"https://www.wikidata.org/wiki/Q4927124","display_name":"Block (permutation group theory)","level":2,"score":0.43505820631980896},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.41397497057914734},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.35901910066604614},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.22596994042396545},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"id":"https://openalex.org/C2775924081","wikidata":"https://www.wikidata.org/wiki/Q55608371","display_name":"Control (management)","level":2,"score":0.0},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.0},{"id":"https://openalex.org/C50522688","wikidata":"https://www.wikidata.org/wiki/Q189833","display_name":"Economic growth","level":1,"score":0.0},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C126838900","wikidata":"https://www.wikidata.org/wiki/Q77604","display_name":"Radiology","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1109/vetecs.2006.1683194","is_oa":false,"landing_page_url":"https://doi.org/10.1109/vetecs.2006.1683194","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2006 IEEE 63rd Vehicular Technology Conference","raw_type":"proceedings-article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.880.2856","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.880.2856","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"http://research-information.bristol.ac.uk/files/2998888/webb_IEEE_vtc_spring2006.pdf","raw_type":"text"},{"id":"pmh:oai:research-information.bris.ac.uk:publications/3e671f6e-a9b0-4ab2-a206-3afcf84971a3","is_oa":true,"landing_page_url":"https://research-information.bris.ac.uk/en/publications/3e671f6e-a9b0-4ab2-a206-3afcf84971a3","pdf_url":"https://research-information.bris.ac.uk/files/2998888/webb_IEEE_vtc_spring2006.pdf","source":{"id":"https://openalex.org/S7407055359","display_name":"Explore Bristol Research","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":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Webb, MW, Hunukumbure, MR, Beach, MA & Nix, AR 2006, 'The effect of computation and feedback delay on the capacity of multiuser MIMO systems in a small outdoor cell', IEEE 63rd Vehicular Technology Conference, 2006 (VTC 2006-Spring), vol. 4, pp. 1988 - 1992. https://doi.org/10.1109/VETECS.2006.1683194","raw_type":"info:eu-repo/semantics/publishedVersion"}],"best_oa_location":{"id":"pmh:oai:research-information.bris.ac.uk:publications/3e671f6e-a9b0-4ab2-a206-3afcf84971a3","is_oa":true,"landing_page_url":"https://research-information.bris.ac.uk/en/publications/3e671f6e-a9b0-4ab2-a206-3afcf84971a3","pdf_url":"https://research-information.bris.ac.uk/files/2998888/webb_IEEE_vtc_spring2006.pdf","source":{"id":"https://openalex.org/S7407055359","display_name":"Explore Bristol Research","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":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Webb, MW, Hunukumbure, MR, Beach, MA & Nix, AR 2006, 'The effect of computation and feedback delay on the capacity of multiuser MIMO systems in a small outdoor cell', IEEE 63rd Vehicular Technology Conference, 2006 (VTC 2006-Spring), vol. 4, pp. 1988 - 1992. https://doi.org/10.1109/VETECS.2006.1683194","raw_type":"info:eu-repo/semantics/publishedVersion"},"sustainable_development_goals":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320334627","display_name":"Engineering and Physical Sciences Research Council","ror":"https://ror.org/0439y7842"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2128377309.pdf","grobid_xml":"https://content.openalex.org/works/W2128377309.grobid-xml"},"referenced_works_count":9,"referenced_works":["https://openalex.org/W1828795402","https://openalex.org/W2056137078","https://openalex.org/W2096765600","https://openalex.org/W2098126478","https://openalex.org/W2102523420","https://openalex.org/W2122437257","https://openalex.org/W2127886694","https://openalex.org/W2165943096","https://openalex.org/W2169813715"],"related_works":["https://openalex.org/W1539855486","https://openalex.org/W2349752445","https://openalex.org/W3198080347","https://openalex.org/W2488227130","https://openalex.org/W2355231046","https://openalex.org/W2042947524","https://openalex.org/W1579662240","https://openalex.org/W4231582551","https://openalex.org/W2106851798","https://openalex.org/W2132485983"],"abstract_inverted_index":{"This":[0],"paper":[1],"examines":[2],"how":[3],"the":[4,23,31,40,49,73,89,106,109,116,127,144,148],"capacity":[5,130,149],"of":[6,48],"three":[7],"multiuser":[8],"multiple-input":[9],"multiple-output":[10],"(MIMO)":[11],"algorithms":[12,112],"is":[13,57,68,82,134,140],"affected":[14],"by":[15,30,152],"a":[16,58,101],"delay":[17,91,145],"in":[18,129],"computing":[19],"and":[20,121,137,146],"feeding":[21],"back":[22],"transmit":[24,36],"(and":[25],"receive)":[26],"weighting":[27],"matrices":[28],"used":[29],"algorithms.":[32],"Iterative":[33],"schemes":[34],"determining":[35],"weights":[37],"that":[38],"achieve":[39],"system-wide":[41],"Nash":[42],"equilibrium":[43],"(NE)":[44],"or":[45],"block-diagonalization":[46],"(BD)":[47],"overall":[50],"system":[51],"channel":[52,78],"matrix":[53],"are":[54],"compared":[55],"as":[56],"scheme":[59],"applying":[60],"successive":[61],"diagonalization":[62],"(SD)":[63],"among":[64],"users.":[65],"The":[66],"NE":[67],"found":[69,83],"to":[70,76,84,142],"be":[71],"far":[72],"most":[74],"robust":[75],"out-of-date":[77],"information,":[79],"whilst":[80],"SD":[81],"suffer":[85],"badly":[86],"at":[87],"even":[88],"shortest":[90],"considered":[92],"here":[93],"(about":[94],"0.9":[95],"ms);":[96],"BD's":[97],"losses":[98],"vary":[99],"over":[100],"wide":[102],"range":[103],"depending":[104],"on":[105],"delay.":[107,123],"For":[108],"two":[110],"iterative":[111],"we":[113],"also":[114],"examine":[115],"tradeoff":[117],"between":[118],"better":[119],"convergence":[120,133],"less":[122],"In":[124],"both":[125],"cases,":[126],"loss":[128,150],"for":[131],"weaker":[132],"very":[135],"small,":[136],"so":[138],"it":[139,153],"desirable":[141],"minimize":[143],"thus":[147],"caused":[151]},"counts_by_year":[],"updated_date":"2026-04-05T17:49:38.594831","created_date":"2025-10-10T00:00:00"}
