{"id":"https://openalex.org/W2153948997","doi":"https://doi.org/10.1109/tsp.2014.2352595","title":"Reduced Complexity Soft-Output MIMO Sphere Detectors\u2014Part I: Algorithmic Optimizations","display_name":"Reduced Complexity Soft-Output MIMO Sphere Detectors\u2014Part I: Algorithmic Optimizations","publication_year":2014,"publication_date":"2014-08-27","ids":{"openalex":"https://openalex.org/W2153948997","doi":"https://doi.org/10.1109/tsp.2014.2352595","mag":"2153948997"},"language":"en","primary_location":{"id":"doi:10.1109/tsp.2014.2352595","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tsp.2014.2352595","pdf_url":null,"source":{"id":"https://openalex.org/S168680287","display_name":"IEEE Transactions on Signal Processing","issn_l":"1053-587X","issn":["1053-587X","1941-0476"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["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 Signal Processing","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/A5038988201","display_name":"Mohammad M. Mansour","orcid":"https://orcid.org/0000-0002-8316-1330"},"institutions":[{"id":"https://openalex.org/I98635879","display_name":"American University of Beirut","ror":"https://ror.org/04pznsd21","country_code":"LB","type":"education","lineage":["https://openalex.org/I98635879"]}],"countries":["LB"],"is_corresponding":false,"raw_author_name":"Mohammad M. Mansour","raw_affiliation_strings":["Department of Electrical and Computer Engineering, American University of Beirut, Lebanon"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, American University of Beirut, Lebanon","institution_ids":["https://openalex.org/I98635879"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5034653907","display_name":"Sam P. Alex","orcid":null},"institutions":[{"id":"https://openalex.org/I4210127325","display_name":"Broadcom (United States)","ror":"https://ror.org/035gt5s03","country_code":"US","type":"company","lineage":["https://openalex.org/I4210127325"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Sam P. Alex","raw_affiliation_strings":["Broadcom Corporation, Sunnyvale, CA, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Broadcom Corporation, Sunnyvale, CA, USA","institution_ids":["https://openalex.org/I4210127325"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5018200269","display_name":"Louay M. A. Jalloul","orcid":null},"institutions":[{"id":"https://openalex.org/I4210127325","display_name":"Broadcom (United States)","ror":"https://ror.org/035gt5s03","country_code":"US","type":"company","lineage":["https://openalex.org/I4210127325"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Louay M.A. Jalloul","raw_affiliation_strings":["Broadcom Corporation, Sunnyvale, CA, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Broadcom Corporation, Sunnyvale, CA, USA","institution_ids":["https://openalex.org/I4210127325"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":4.5581,"has_fulltext":false,"cited_by_count":45,"citation_normalized_percentile":{"value":0.95368605,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":99},"biblio":{"volume":"62","issue":"21","first_page":"5505","last_page":"5520"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10125","display_name":"Advanced Wireless Communication Techniques","score":0.9998999834060669,"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":0.9998999834060669,"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/T11321","display_name":"Error Correcting Code Techniques","score":0.9994999766349792,"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/T10575","display_name":"Wireless Communication Networks Research","score":0.9977999925613403,"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":0.7498366236686707},{"id":"https://openalex.org/keywords/qr-decomposition","display_name":"QR decomposition","score":0.6680851578712463},{"id":"https://openalex.org/keywords/computational-complexity-theory","display_name":"Computational complexity theory","score":0.6086696982383728},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.598889172077179},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5721203088760376},{"id":"https://openalex.org/keywords/channel-state-information","display_name":"Channel state information","score":0.5010550022125244},{"id":"https://openalex.org/keywords/tree","display_name":"Tree (set theory)","score":0.49499887228012085},{"id":"https://openalex.org/keywords/tree-traversal","display_name":"Tree traversal","score":0.4693302512168884},{"id":"https://openalex.org/keywords/node","display_name":"Node (physics)","score":0.4357772469520569},{"id":"https://openalex.org/keywords/decoding-methods","display_name":"Decoding methods","score":0.4336818754673004},{"id":"https://openalex.org/keywords/throughput","display_name":"Throughput","score":0.4219409227371216},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.35219916701316833},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.2885364294052124},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.22550320625305176},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.13202154636383057},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.09560856223106384}],"concepts":[{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.7498366236686707},{"id":"https://openalex.org/C188060507","wikidata":"https://www.wikidata.org/wiki/Q653242","display_name":"QR decomposition","level":3,"score":0.6680851578712463},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.6086696982383728},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.598889172077179},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5721203088760376},{"id":"https://openalex.org/C148063708","wikidata":"https://www.wikidata.org/wiki/Q5072511","display_name":"Channel state information","level":3,"score":0.5010550022125244},{"id":"https://openalex.org/C113174947","wikidata":"https://www.wikidata.org/wiki/Q2859736","display_name":"Tree (set theory)","level":2,"score":0.49499887228012085},{"id":"https://openalex.org/C140745168","wikidata":"https://www.wikidata.org/wiki/Q1210082","display_name":"Tree traversal","level":2,"score":0.4693302512168884},{"id":"https://openalex.org/C62611344","wikidata":"https://www.wikidata.org/wiki/Q1062658","display_name":"Node (physics)","level":2,"score":0.4357772469520569},{"id":"https://openalex.org/C57273362","wikidata":"https://www.wikidata.org/wiki/Q576722","display_name":"Decoding methods","level":2,"score":0.4336818754673004},{"id":"https://openalex.org/C157764524","wikidata":"https://www.wikidata.org/wiki/Q1383412","display_name":"Throughput","level":3,"score":0.4219409227371216},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.35219916701316833},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2885364294052124},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.22550320625305176},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.13202154636383057},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.09560856223106384},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"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/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"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/C66938386","wikidata":"https://www.wikidata.org/wiki/Q633538","display_name":"Structural engineering","level":1,"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/tsp.2014.2352595","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tsp.2014.2352595","pdf_url":null,"source":{"id":"https://openalex.org/S168680287","display_name":"IEEE Transactions on Signal Processing","issn_l":"1053-587X","issn":["1053-587X","1941-0476"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["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 Signal Processing","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":44,"referenced_works":["https://openalex.org/W93405014","https://openalex.org/W575399286","https://openalex.org/W1496536568","https://openalex.org/W1508642566","https://openalex.org/W1555986461","https://openalex.org/W1557486844","https://openalex.org/W1683834415","https://openalex.org/W1900169287","https://openalex.org/W1978403492","https://openalex.org/W1981745143","https://openalex.org/W1997002146","https://openalex.org/W1997086908","https://openalex.org/W2043138598","https://openalex.org/W2054620919","https://openalex.org/W2064812691","https://openalex.org/W2075081724","https://openalex.org/W2096431078","https://openalex.org/W2097174089","https://openalex.org/W2097780353","https://openalex.org/W2103005479","https://openalex.org/W2106016306","https://openalex.org/W2111416661","https://openalex.org/W2111626380","https://openalex.org/W2116631972","https://openalex.org/W2118425896","https://openalex.org/W2121837475","https://openalex.org/W2125526602","https://openalex.org/W2126483728","https://openalex.org/W2127359267","https://openalex.org/W2133427951","https://openalex.org/W2133475491","https://openalex.org/W2136964481","https://openalex.org/W2137985086","https://openalex.org/W2140940105","https://openalex.org/W2148907454","https://openalex.org/W2152388061","https://openalex.org/W2156787051","https://openalex.org/W2168830205","https://openalex.org/W2170503126","https://openalex.org/W2295187311","https://openalex.org/W4205347518","https://openalex.org/W4253905290","https://openalex.org/W6633254669","https://openalex.org/W6639814726"],"related_works":["https://openalex.org/W2059045613","https://openalex.org/W884630482","https://openalex.org/W2021181414","https://openalex.org/W2025723618","https://openalex.org/W3107078138","https://openalex.org/W2552025594","https://openalex.org/W3089243066","https://openalex.org/W4287662466","https://openalex.org/W4211013851","https://openalex.org/W2165394982"],"abstract_inverted_index":{"Optimum":[0],"soft-output":[1],"(SO)":[2],"multiple-input":[3],"multiple-":[4],"output":[5],"(MIMO)":[6],"tree-search":[7,60],"detection":[8],"algorithms":[9],"pose":[10],"significant":[11],"implementation":[12],"challenges":[13],"due":[14],"to":[15],"their":[16],"nondeterministic":[17],"processing":[18,64],"throughput":[19],"and":[20,32,48,68,89],"high":[21],"computational":[22,50],"complexity.":[23,51],"In":[24],"this":[25,56],"two-part":[26],"work,":[27],"we":[28],"present":[29],"extensive":[30],"algorithmic":[31,53],"architectural":[33],"optimizations":[34,54,93],"of":[35,105,114],"the":[36,59],"sphere-decoding":[37],"algorithm":[38],"targeted":[39],"at":[40,118,123],"achieving":[41],"practical":[42],"tradeoffs":[43],"between":[44],"desired":[45],"link":[46],"performance":[47,109],"affordable":[49],"The":[52,92],"in":[55],"part":[57],"span":[58],"traversal":[61],"scheme,":[62],"leaf":[63],"step,":[65,70],"internal":[66],"node-pruning":[67],"skipping":[69],"child":[71],"enumeration":[72],"based":[73,84],"on":[74,85],"a":[75,96],"state-machine,":[76],"adaptive":[77],"radius":[78],"scaling":[79],"for":[80,101],"LLR":[81],"clipping,":[82],"QR-decomposition":[83],"minimum":[86],"cumulative":[87],"residuals,":[88],"multitree":[90],"configurations.":[91],"demonstrate":[94],"that":[95],"64-QAM":[97],"SO":[98],"MIMO":[99],"detector":[100],"LTE":[102],"is":[103],"capable":[104],"attaining":[106],"almost":[107],"ML":[108],"with":[110],"an":[111],"SNR":[112],"loss":[113],"only":[115],"0.85":[116],"dB":[117],"1%":[119],"BLER":[120],"by":[121],"visiting":[122],"most":[124],"200":[125],"tree":[126],"nodes.":[127]},"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":4},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":6},{"year":2020,"cited_by_count":4},{"year":2019,"cited_by_count":3},{"year":2018,"cited_by_count":3},{"year":2017,"cited_by_count":7},{"year":2016,"cited_by_count":8},{"year":2015,"cited_by_count":7}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}