{"id":"https://openalex.org/W2887198071","doi":"https://doi.org/10.1109/icc.2018.8422452","title":"Discrete Spatial Compression beyond Beamspace Channel Sparsity Based on Branch-and-Bound","display_name":"Discrete Spatial Compression beyond Beamspace Channel Sparsity Based on Branch-and-Bound","publication_year":2018,"publication_date":"2018-05-01","ids":{"openalex":"https://openalex.org/W2887198071","doi":"https://doi.org/10.1109/icc.2018.8422452","mag":"2887198071"},"language":"en","primary_location":{"id":"doi:10.1109/icc.2018.8422452","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icc.2018.8422452","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2018 IEEE International Conference on Communications (ICC)","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/A5008150938","display_name":"Zhiyuan Jiang","orcid":"https://orcid.org/0000-0002-8522-5721"},"institutions":[{"id":"https://openalex.org/I99065089","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Zhiyuan Jiang","raw_affiliation_strings":["TNList, Tsinghua University"],"affiliations":[{"raw_affiliation_string":"TNList, Tsinghua University","institution_ids":["https://openalex.org/I99065089"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5021120517","display_name":"Sheng Zhou","orcid":"https://orcid.org/0000-0003-0651-0071"},"institutions":[{"id":"https://openalex.org/I99065089","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Sheng Zhou","raw_affiliation_strings":["TNList, Tsinghua University"],"affiliations":[{"raw_affiliation_string":"TNList, Tsinghua University","institution_ids":["https://openalex.org/I99065089"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5079749340","display_name":"Zhisheng Niu","orcid":"https://orcid.org/0000-0003-0420-2024"},"institutions":[{"id":"https://openalex.org/I99065089","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhisheng Niu","raw_affiliation_strings":["TNList, Tsinghua University"],"affiliations":[{"raw_affiliation_string":"TNList, Tsinghua University","institution_ids":["https://openalex.org/I99065089"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5008150938"],"corresponding_institution_ids":["https://openalex.org/I99065089"],"apc_list":null,"apc_paid":null,"fwci":0.1288,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.47768551,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"6"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","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/T10148","display_name":"Advanced MIMO Systems Optimization","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/T10936","display_name":"Millimeter-Wave Propagation and Modeling","score":0.9994999766349792,"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/T10262","display_name":"Microwave Engineering and Waveguides","score":0.9986000061035156,"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/mimo","display_name":"MIMO","score":0.7668637633323669},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6371026635169983},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5617809295654297},{"id":"https://openalex.org/keywords/radio-frequency","display_name":"Radio frequency","score":0.5223941802978516},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5069265961647034},{"id":"https://openalex.org/keywords/transformation","display_name":"Transformation (genetics)","score":0.4691682457923889},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.4566461443901062},{"id":"https://openalex.org/keywords/power","display_name":"Power (physics)","score":0.43547922372817993},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.21440553665161133},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.137302428483963}],"concepts":[{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.7668637633323669},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6371026635169983},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5617809295654297},{"id":"https://openalex.org/C74064498","wikidata":"https://www.wikidata.org/wiki/Q3396184","display_name":"Radio frequency","level":2,"score":0.5223941802978516},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5069265961647034},{"id":"https://openalex.org/C204241405","wikidata":"https://www.wikidata.org/wiki/Q461499","display_name":"Transformation (genetics)","level":3,"score":0.4691682457923889},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.4566461443901062},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.43547922372817993},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.21440553665161133},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.137302428483963},{"id":"https://openalex.org/C104317684","wikidata":"https://www.wikidata.org/wiki/Q7187","display_name":"Gene","level":2,"score":0.0},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","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}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icc.2018.8422452","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icc.2018.8422452","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2018 IEEE International Conference on Communications (ICC)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Affordable and clean energy","score":0.8899999856948853,"id":"https://metadata.un.org/sdg/7"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":19,"referenced_works":["https://openalex.org/W836396136","https://openalex.org/W1576690944","https://openalex.org/W2015301486","https://openalex.org/W2036030019","https://openalex.org/W2045840914","https://openalex.org/W2091364465","https://openalex.org/W2113638573","https://openalex.org/W2124801067","https://openalex.org/W2154104609","https://openalex.org/W2165327110","https://openalex.org/W2195693430","https://openalex.org/W2314562768","https://openalex.org/W2530093495","https://openalex.org/W2593399084","https://openalex.org/W2724191955","https://openalex.org/W2779734424","https://openalex.org/W2962739446","https://openalex.org/W2962785465","https://openalex.org/W4240374930"],"related_works":["https://openalex.org/W2545343974","https://openalex.org/W4291895924","https://openalex.org/W1783583321","https://openalex.org/W2038397443","https://openalex.org/W2941374357","https://openalex.org/W2026727497","https://openalex.org/W4388520214","https://openalex.org/W1976502299","https://openalex.org/W1972125288","https://openalex.org/W2088459095"],"abstract_inverted_index":{"One":[0],"of":[1,65,73,76,99,168],"the":[2,14,28,71,91,97,121,128,134,161,166],"most":[3],"challenging":[4],"issues":[5],"in":[6,142],"deploying":[7],"massive":[8],"multiple-input":[9],"multiple-output":[10],"(MIMO)":[11],"systems":[12],"is":[13,32,60,131,140],"significant":[15],"radio-frequency":[16],"(RF)":[17],"front-end":[18],"complexity,":[19],"hardware":[20],"cost":[21],"and":[22,51,108,153],"power":[23,49],"consumption.":[24],"Towards":[25],"this":[26,37],"end,":[27],"beamspace-MIMO":[29,44],"based":[30,119,148],"approach":[31],"a":[33,66,143,176],"promising":[34],"solution.":[35],"In":[36],"paper,":[38],"we":[39],"first":[40],"show":[41,159],"that":[42,96,160],"traditional":[43],"approaches":[45],"suffer":[46],"from":[47],"spatial":[48],"leakage":[50],"imperfect":[52],"channel":[53,151],"statistics":[54],"estimation.":[55],"A":[56],"beam":[57,109,114],"combination":[58,115],"module":[59],"hence":[61],"proposed,":[62],"which":[63,158],"consists":[64],"small":[67],"number":[68,72,98,167],"(compared":[69],"with":[70,175],"antenna":[74],"elements)":[75],"low-resolution":[77],"(possibly":[78],"one-":[79],"bit)":[80],"digital":[81],"(discrete)":[82],"phase":[83],"shifters":[84],"after":[85],"beamspace":[86,92,106],"transformation":[87,107],"to":[88,127,132,173],"further":[89],"compress":[90],"signal":[93],"dimensionality,":[94],"such":[95],"RF":[100,169],"chains":[101,170],"can":[102,164],"be":[103],"reduced":[104],"beyond":[105],"selection.":[110],"The":[111,125],"optimum":[112],"discrete":[113],"weights":[116],"are":[117,156],"obtained":[118],"on":[120,149],"branch-and-bound":[122],"(BB)":[123],"approach.":[124],"key":[126],"BB-based":[129],"solution":[130,139],"solve":[133],"embodied":[135],"sub-":[136],"problem,":[137],"whose":[138],"derived":[141],"closed-form.":[144],"Link-level":[145],"simulation":[146],"results":[147],"realistic":[150],"models":[152],"LTE":[154],"parameters":[155],"presented":[157],"proposed":[162],"schemes":[163],"reduce":[165],"by":[171],"up":[172],"25%":[174],"one-bit":[177],"phase-shifter-network.":[178]},"counts_by_year":[{"year":2018,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}