{"id":"https://openalex.org/W2119770691","doi":"https://doi.org/10.1109/lcomm.2012.112012121728","title":"Low-Complexity Soft-Output Sphere Decoding with Modified Repeated Tree Search Strategy","display_name":"Low-Complexity Soft-Output Sphere Decoding with Modified Repeated Tree Search Strategy","publication_year":2012,"publication_date":"2012-11-27","ids":{"openalex":"https://openalex.org/W2119770691","doi":"https://doi.org/10.1109/lcomm.2012.112012121728","mag":"2119770691"},"language":"en","primary_location":{"id":"doi:10.1109/lcomm.2012.112012121728","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lcomm.2012.112012121728","pdf_url":null,"source":{"id":"https://openalex.org/S147316732","display_name":"IEEE Communications Letters","issn_l":"1089-7798","issn":["1089-7798","1558-2558","2373-7891"],"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 Communications Letters","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/A5050992152","display_name":"Shin-Lin Shieh","orcid":"https://orcid.org/0000-0003-2011-1149"},"institutions":[{"id":"https://openalex.org/I99613584","display_name":"National Taipei University","ror":"https://ror.org/03e29r284","country_code":"TW","type":"education","lineage":["https://openalex.org/I99613584"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"Shin-Lin Shieh","raw_affiliation_strings":["Graduate Institute of Communication Engineering, National Taipei University, Taipei, Taiwan","Grad. Inst. of Comm. Eng., Nat. Taipei Univ., Taipei, Taiwan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Graduate Institute of Communication Engineering, National Taipei University, Taipei, Taiwan","institution_ids":["https://openalex.org/I99613584"]},{"raw_affiliation_string":"Grad. Inst. of Comm. Eng., Nat. Taipei Univ., Taipei, Taiwan","institution_ids":["https://openalex.org/I99613584"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5053290139","display_name":"Rong-Dong Chiu","orcid":null},"institutions":[{"id":"https://openalex.org/I148366613","display_name":"National Yang Ming Chiao Tung University","ror":"https://ror.org/00se2k293","country_code":"TW","type":"education","lineage":["https://openalex.org/I148366613"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"Rong-Dong Chiu","raw_affiliation_strings":["National Chiao-Tung University, Taiwan","National Chiao\u2013Tung University, Hsinchu, Taiwan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National Chiao-Tung University, Taiwan","institution_ids":["https://openalex.org/I148366613"]},{"raw_affiliation_string":"National Chiao\u2013Tung University, Hsinchu, Taiwan","institution_ids":["https://openalex.org/I148366613"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5021338972","display_name":"Shih-Lun Feng","orcid":null},"institutions":[{"id":"https://openalex.org/I148366613","display_name":"National Yang Ming Chiao Tung University","ror":"https://ror.org/00se2k293","country_code":"TW","type":"education","lineage":["https://openalex.org/I148366613"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"Shih-Lun Feng","raw_affiliation_strings":["National Chiao-Tung University, Taiwan","National Chiao\u2013Tung University, Hsinchu, Taiwan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National Chiao-Tung University, Taiwan","institution_ids":["https://openalex.org/I148366613"]},{"raw_affiliation_string":"National Chiao\u2013Tung University, Hsinchu, Taiwan","institution_ids":["https://openalex.org/I148366613"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5037230051","display_name":"Po\u2010Ning Chen","orcid":"https://orcid.org/0000-0002-1231-0706"},"institutions":[{"id":"https://openalex.org/I148366613","display_name":"National Yang Ming Chiao Tung University","ror":"https://ror.org/00se2k293","country_code":"TW","type":"education","lineage":["https://openalex.org/I148366613"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"Po-Ning Chen","raw_affiliation_strings":["National Chiao-Tung University, Taiwan","National Chiao\u2013Tung University, Hsinchu, Taiwan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National Chiao-Tung University, Taiwan","institution_ids":["https://openalex.org/I148366613"]},{"raw_affiliation_string":"National Chiao\u2013Tung University, Hsinchu, Taiwan","institution_ids":["https://openalex.org/I148366613"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":2645,"currency":"USD","value_usd":2645},"apc_paid":null,"fwci":1.4953,"has_fulltext":false,"cited_by_count":12,"citation_normalized_percentile":{"value":0.84118826,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":"17","issue":"1","first_page":"51","last_page":"54"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10125","display_name":"Advanced Wireless Communication Techniques","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/T10125","display_name":"Advanced Wireless Communication Techniques","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/T10575","display_name":"Wireless Communication Networks Research","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"}},{"id":"https://openalex.org/T11130","display_name":"Coding theory and cryptography","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"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/decoding-methods","display_name":"Decoding methods","score":0.8820323944091797},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.7487265467643738},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.6549117565155029},{"id":"https://openalex.org/keywords/tree","display_name":"Tree (set theory)","score":0.6309993863105774},{"id":"https://openalex.org/keywords/computational-complexity-theory","display_name":"Computational complexity theory","score":0.5947126150131226},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5156563520431519},{"id":"https://openalex.org/keywords/minimum-mean-square-error","display_name":"Minimum mean square error","score":0.47280946373939514},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.4624969959259033},{"id":"https://openalex.org/keywords/forcing","display_name":"Forcing (mathematics)","score":0.42631950974464417},{"id":"https://openalex.org/keywords/sequential-decoding","display_name":"Sequential decoding","score":0.42443716526031494},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.16063007712364197},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.11282050609588623},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.09492605924606323},{"id":"https://openalex.org/keywords/block-code","display_name":"Block code","score":0.08482679724693298},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.0747365653514862}],"concepts":[{"id":"https://openalex.org/C57273362","wikidata":"https://www.wikidata.org/wiki/Q576722","display_name":"Decoding methods","level":2,"score":0.8820323944091797},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.7487265467643738},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.6549117565155029},{"id":"https://openalex.org/C113174947","wikidata":"https://www.wikidata.org/wiki/Q2859736","display_name":"Tree (set theory)","level":2,"score":0.6309993863105774},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.5947126150131226},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5156563520431519},{"id":"https://openalex.org/C90652560","wikidata":"https://www.wikidata.org/wiki/Q11091747","display_name":"Minimum mean square error","level":3,"score":0.47280946373939514},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.4624969959259033},{"id":"https://openalex.org/C197115733","wikidata":"https://www.wikidata.org/wiki/Q1003136","display_name":"Forcing (mathematics)","level":2,"score":0.42631950974464417},{"id":"https://openalex.org/C193969084","wikidata":"https://www.wikidata.org/wiki/Q7452500","display_name":"Sequential decoding","level":4,"score":0.42443716526031494},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.16063007712364197},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.11282050609588623},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.09492605924606323},{"id":"https://openalex.org/C157125643","wikidata":"https://www.wikidata.org/wiki/Q884707","display_name":"Block code","level":3,"score":0.08482679724693298},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.0747365653514862},{"id":"https://openalex.org/C185429906","wikidata":"https://www.wikidata.org/wiki/Q1130160","display_name":"Estimator","level":2,"score":0.0},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/lcomm.2012.112012121728","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lcomm.2012.112012121728","pdf_url":null,"source":{"id":"https://openalex.org/S147316732","display_name":"IEEE Communications Letters","issn_l":"1089-7798","issn":["1089-7798","1558-2558","2373-7891"],"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 Communications Letters","raw_type":"journal-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/W1997002146","https://openalex.org/W2003165625","https://openalex.org/W2054620919","https://openalex.org/W2095720841","https://openalex.org/W2096431078","https://openalex.org/W2109285579","https://openalex.org/W2112772743","https://openalex.org/W2114022519","https://openalex.org/W2118425896","https://openalex.org/W2126483728","https://openalex.org/W2136530738","https://openalex.org/W2140940105","https://openalex.org/W2141145243","https://openalex.org/W2160897074","https://openalex.org/W2164887710","https://openalex.org/W2168830205"],"related_works":["https://openalex.org/W2971214053","https://openalex.org/W2021517900","https://openalex.org/W2949231297","https://openalex.org/W2060606417","https://openalex.org/W2045623209","https://openalex.org/W152327667","https://openalex.org/W1997240170","https://openalex.org/W1572030577","https://openalex.org/W2158165366","https://openalex.org/W3195147989"],"abstract_inverted_index":{"Many":[0],"solutions":[1],"for":[2],"detecting":[3],"signals":[4],"transmitted":[5],"over":[6],"flat-faded":[7],"multiple":[8,10],"input":[9],"output":[11],"(MIMO)":[12],"channels":[13],"have":[14],"been":[15],"proposed,":[16],"e.g.,":[17],"the":[18,51,60],"zero-forcing":[19],"(ZF),":[20],"minimum":[21],"mean":[22],"squared":[23],"error":[24],"(MMSE),":[25],"sphere":[26],"decoding":[27,79],"(SD)":[28],"algorithms,":[29],"to":[30],"name":[31],"a":[32,57,74,84],"few.":[33],"These":[34],"approaches":[35],"however":[36],"suffer":[37],"from":[38],"either":[39],"unsatisfactory":[40],"performance":[41],"or":[42],"high":[43],"complexity.":[44],"In":[45],"this":[46],"paper,":[47],"we":[48],"focus":[49],"on":[50,59],"soft-output":[52],"SD":[53],"algorithm":[54],"and":[55,81],"propose":[56],"modification":[58,71],"repeated":[61],"tree":[62],"search":[63],"(RTS)":[64],"strategy.":[65],"It":[66],"is":[67],"shown":[68],"that":[69],"our":[70],"can":[72],"maintain":[73],"fixed":[75],"upper":[76],"limit":[77],"in":[78,83],"complexity":[80],"results":[82],"good":[85],"performance-complexity":[86],"tradeoff.":[87]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2017,"cited_by_count":2},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":3},{"year":2014,"cited_by_count":2},{"year":2013,"cited_by_count":2}],"updated_date":"2026-08-21T09:56:20.448147","created_date":"2025-10-10T00:00:00"}