{"id":"https://openalex.org/W2162184840","doi":"https://doi.org/10.1109/icassp.2009.4960181","title":"A low complexity channel decomposition and feedback strategy for MIMO precoder design","display_name":"A low complexity channel decomposition and feedback strategy for MIMO precoder design","publication_year":2009,"publication_date":"2009-04-01","ids":{"openalex":"https://openalex.org/W2162184840","doi":"https://doi.org/10.1109/icassp.2009.4960181","mag":"2162184840"},"language":"en","primary_location":{"id":"doi:10.1109/icassp.2009.4960181","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.2009.4960181","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 IEEE International Conference on Acoustics, Speech and Signal Processing","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/A5014393772","display_name":"Che-Chen Chou","orcid":null},"institutions":[{"id":"https://openalex.org/I25846049","display_name":"National Tsing Hua University","ror":"https://ror.org/00zdnkx70","country_code":"TW","type":"education","lineage":["https://openalex.org/I25846049"]}],"countries":["TW"],"is_corresponding":true,"raw_author_name":"Che-Chen Chou","raw_affiliation_strings":["Institute of Communications Engineering, National Tsing Hua University, Hsinchu, Taiwan"],"affiliations":[{"raw_affiliation_string":"Institute of Communications Engineering, National Tsing Hua University, Hsinchu, Taiwan","institution_ids":["https://openalex.org/I25846049"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5047743984","display_name":"Hsi-Chei Chen","orcid":null},"institutions":[{"id":"https://openalex.org/I25846049","display_name":"National Tsing Hua University","ror":"https://ror.org/00zdnkx70","country_code":"TW","type":"education","lineage":["https://openalex.org/I25846049"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"Hsi-Chei Chen","raw_affiliation_strings":["Institute of Communications Engineering, National Tsing Hua University, Hsinchu, Taiwan"],"affiliations":[{"raw_affiliation_string":"Institute of Communications Engineering, National Tsing Hua University, Hsinchu, Taiwan","institution_ids":["https://openalex.org/I25846049"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5102151359","display_name":"Jen\u2010Ming Wu","orcid":"https://orcid.org/0000-0002-8474-1281"},"institutions":[{"id":"https://openalex.org/I25846049","display_name":"National Tsing Hua University","ror":"https://ror.org/00zdnkx70","country_code":"TW","type":"education","lineage":["https://openalex.org/I25846049"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"Jen-Ming Wu","raw_affiliation_strings":["Institute of Communications Engineering, National Tsing Hua University, Hsinchu, Taiwan"],"affiliations":[{"raw_affiliation_string":"Institute of Communications Engineering, National Tsing Hua University, Hsinchu, Taiwan","institution_ids":["https://openalex.org/I25846049"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5014393772"],"corresponding_institution_ids":["https://openalex.org/I25846049"],"apc_list":null,"apc_paid":null,"fwci":0.2991,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":{"value":0.65880031,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10125","display_name":"Advanced Wireless Communication Techniques","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"}},"topics":[{"id":"https://openalex.org/T10125","display_name":"Advanced Wireless Communication Techniques","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/T10148","display_name":"Advanced MIMO Systems 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/T11248","display_name":"Advanced Power Amplifier Design","score":0.9979000091552734,"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/singular-value-decomposition","display_name":"Singular value decomposition","score":0.8381795883178711},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.7855976819992065},{"id":"https://openalex.org/keywords/matrix-decomposition","display_name":"Matrix decomposition","score":0.5308008790016174},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5100782513618469},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5003316402435303},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.46056443452835083},{"id":"https://openalex.org/keywords/decomposition","display_name":"Decomposition","score":0.4312688708305359},{"id":"https://openalex.org/keywords/precoding","display_name":"Precoding","score":0.4122738838195801},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3635736405849457},{"id":"https://openalex.org/keywords/topology","display_name":"Topology (electrical circuits)","score":0.3397142291069031},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.14276036620140076},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.11790207028388977},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.11086347699165344},{"id":"https://openalex.org/keywords/chemistry","display_name":"Chemistry","score":0.06781286001205444}],"concepts":[{"id":"https://openalex.org/C22789450","wikidata":"https://www.wikidata.org/wiki/Q420904","display_name":"Singular value decomposition","level":2,"score":0.8381795883178711},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.7855976819992065},{"id":"https://openalex.org/C42355184","wikidata":"https://www.wikidata.org/wiki/Q1361088","display_name":"Matrix decomposition","level":3,"score":0.5308008790016174},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5100782513618469},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5003316402435303},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.46056443452835083},{"id":"https://openalex.org/C124681953","wikidata":"https://www.wikidata.org/wiki/Q339062","display_name":"Decomposition","level":2,"score":0.4312688708305359},{"id":"https://openalex.org/C160562895","wikidata":"https://www.wikidata.org/wiki/Q7239557","display_name":"Precoding","level":4,"score":0.4122738838195801},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3635736405849457},{"id":"https://openalex.org/C184720557","wikidata":"https://www.wikidata.org/wiki/Q7825049","display_name":"Topology (electrical circuits)","level":2,"score":0.3397142291069031},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.14276036620140076},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.11790207028388977},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.11086347699165344},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.06781286001205444},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C158693339","wikidata":"https://www.wikidata.org/wiki/Q190524","display_name":"Eigenvalues and eigenvectors","level":2,"score":0.0},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icassp.2009.4960181","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.2009.4960181","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 IEEE International Conference on Acoustics, Speech and Signal Processing","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":8,"referenced_works":["https://openalex.org/W1557486844","https://openalex.org/W1562571055","https://openalex.org/W2029435453","https://openalex.org/W2123603951","https://openalex.org/W2125717624","https://openalex.org/W2130509920","https://openalex.org/W2156779572","https://openalex.org/W2798909945"],"related_works":["https://openalex.org/W2489379490","https://openalex.org/W2141031289","https://openalex.org/W1631010294","https://openalex.org/W2782904003","https://openalex.org/W2118633810","https://openalex.org/W2150953077","https://openalex.org/W4226434912","https://openalex.org/W2002598339","https://openalex.org/W2133814741","https://openalex.org/W1995410415"],"abstract_inverted_index":{"In":[0,40,100],"classical":[1],"MIMO":[2,17,58],"systems,":[3],"singular":[4],"value":[5],"decomposition":[6,47,54,87,93,98],"(SVD)":[7],"is":[8,30],"adopted":[9],"as":[10,82,84,90],"a":[11,45],"common":[12],"way":[13],"to":[14,25,33],"decompose":[15],"the":[16,34,37,64],"channel":[18,38,46,97],"into":[19],"parallel":[20],"subchannels.":[21],"However,":[22],"in":[23],"addition":[24],"its":[26],"high":[27],"complexity,":[28],"it":[29],"also":[31,103],"sensitive":[32],"ill-conditioning":[35],"of":[36,67,75,80],"matrix.":[39],"this":[41],"paper,":[42],"we":[43,102],"propose":[44],"strategy":[48],"called":[49],"LDL":[50,68,106],"<sup":[51,69,107],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[52,70,108],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">H</sup>":[53,71,109],"for":[55],"low":[56],"complexity":[57,66],"precoder":[59,111],"design.":[60],"We":[61],"show":[62,104],"that":[63,79,105],"computation":[65],"achieves":[72],"one":[73],"degree":[74],"magnitude":[76],"lower":[77],"than":[78],"SVD,":[81],"well":[83],"some":[85],"SVD-based":[86],"scheme":[88],"such":[89],"geometric":[91],"mean":[92],"(GMD)":[94],"and":[95,116],"uniform":[96],"(UCD).":[99],"addition,":[101],"-based":[110],"requires":[112],"less":[113],"quantization":[114],"effort":[115],"feedback":[117],"bandwidth.":[118]},"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2015,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}