{"id":"https://openalex.org/W4406356298","doi":"https://doi.org/10.1109/wcsp62071.2024.10826928","title":"A Two-Stage Scheme for Efficient RIS-Assisted Massive MIMO Sparse Channel Representation and Recovery","display_name":"A Two-Stage Scheme for Efficient RIS-Assisted Massive MIMO Sparse Channel Representation and Recovery","publication_year":2024,"publication_date":"2024-10-24","ids":{"openalex":"https://openalex.org/W4406356298","doi":"https://doi.org/10.1109/wcsp62071.2024.10826928"},"language":"en","primary_location":{"id":"doi:10.1109/wcsp62071.2024.10826928","is_oa":false,"landing_page_url":"https://doi.org/10.1109/wcsp62071.2024.10826928","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2024 16th International Conference on Wireless Communications and Signal Processing (WCSP)","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/A5117428664","display_name":"Wenkai Liu","orcid":"https://orcid.org/0000-0001-9645-5031"},"institutions":[{"id":"https://openalex.org/I4392021250","display_name":"State Key Laboratory of Networking and Switching Technology","ror":"https://ror.org/00qtv5q45","country_code":null,"type":"facility","lineage":["https://openalex.org/I139759216","https://openalex.org/I4392021250"]},{"id":"https://openalex.org/I139759216","display_name":"Beijing University of Posts and Telecommunications","ror":"https://ror.org/04w9fbh59","country_code":"CN","type":"education","lineage":["https://openalex.org/I139759216"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Wenkai Liu","raw_affiliation_strings":["Beijing University of Posts and Telecommunications,State Key Laboratory of Networking and Switching Technology,Beijing,China,100876"],"affiliations":[{"raw_affiliation_string":"Beijing University of Posts and Telecommunications,State Key Laboratory of Networking and Switching Technology,Beijing,China,100876","institution_ids":["https://openalex.org/I139759216","https://openalex.org/I4392021250"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5008846998","display_name":"Nan Ma","orcid":"https://orcid.org/0000-0002-2302-7148"},"institutions":[{"id":"https://openalex.org/I139759216","display_name":"Beijing University of Posts and Telecommunications","ror":"https://ror.org/04w9fbh59","country_code":"CN","type":"education","lineage":["https://openalex.org/I139759216"]},{"id":"https://openalex.org/I4392021250","display_name":"State Key Laboratory of Networking and Switching Technology","ror":"https://ror.org/00qtv5q45","country_code":null,"type":"facility","lineage":["https://openalex.org/I139759216","https://openalex.org/I4392021250"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Nan Ma","raw_affiliation_strings":["Beijing University of Posts and Telecommunications,State Key Laboratory of Networking and Switching Technology,Beijing,China,100876"],"affiliations":[{"raw_affiliation_string":"Beijing University of Posts and Telecommunications,State Key Laboratory of Networking and Switching Technology,Beijing,China,100876","institution_ids":["https://openalex.org/I139759216","https://openalex.org/I4392021250"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101438226","display_name":"Jianqiao Chen","orcid":"https://orcid.org/0000-0003-3491-9237"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Jianqiao Chen","raw_affiliation_strings":["ZGC Institute of Ubiquitous-X Innovation and Applications,6G R&D Department,Beijing,China,100876"],"affiliations":[{"raw_affiliation_string":"ZGC Institute of Ubiquitous-X Innovation and Applications,6G R&D Department,Beijing,China,100876","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5044385946","display_name":"Kaiheng Zhang","orcid":"https://orcid.org/0009-0005-4555-1118"},"institutions":[{"id":"https://openalex.org/I4392021250","display_name":"State Key Laboratory of Networking and Switching Technology","ror":"https://ror.org/00qtv5q45","country_code":null,"type":"facility","lineage":["https://openalex.org/I139759216","https://openalex.org/I4392021250"]},{"id":"https://openalex.org/I139759216","display_name":"Beijing University of Posts and Telecommunications","ror":"https://ror.org/04w9fbh59","country_code":"CN","type":"education","lineage":["https://openalex.org/I139759216"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Kaiheng Zhang","raw_affiliation_strings":["Beijing University of Posts and Telecommunications,State Key Laboratory of Networking and Switching Technology,Beijing,China,100876"],"affiliations":[{"raw_affiliation_string":"Beijing University of Posts and Telecommunications,State Key Laboratory of Networking and Switching Technology,Beijing,China,100876","institution_ids":["https://openalex.org/I139759216","https://openalex.org/I4392021250"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101499823","display_name":"Ke Peng","orcid":"https://orcid.org/0000-0002-4972-6457"},"institutions":[{"id":"https://openalex.org/I4392021250","display_name":"State Key Laboratory of Networking and Switching Technology","ror":"https://ror.org/00qtv5q45","country_code":null,"type":"facility","lineage":["https://openalex.org/I139759216","https://openalex.org/I4392021250"]},{"id":"https://openalex.org/I139759216","display_name":"Beijing University of Posts and Telecommunications","ror":"https://ror.org/04w9fbh59","country_code":"CN","type":"education","lineage":["https://openalex.org/I139759216"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ke Peng","raw_affiliation_strings":["Beijing University of Posts and Telecommunications,State Key Laboratory of Networking and Switching Technology,Beijing,China,100876"],"affiliations":[{"raw_affiliation_string":"Beijing University of Posts and Telecommunications,State Key Laboratory of Networking and Switching Technology,Beijing,China,100876","institution_ids":["https://openalex.org/I139759216","https://openalex.org/I4392021250"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5117428664"],"corresponding_institution_ids":["https://openalex.org/I139759216","https://openalex.org/I4392021250"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.23717203,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"484","last_page":"489"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9991999864578247,"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":0.9991999864578247,"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/T11932","display_name":"Wireless Body Area Networks","score":0.9957000017166138,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical 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/T10125","display_name":"Advanced Wireless Communication Techniques","score":0.9948999881744385,"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":0.6934585571289062},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6576752066612244},{"id":"https://openalex.org/keywords/scheme","display_name":"Scheme (mathematics)","score":0.6262049674987793},{"id":"https://openalex.org/keywords/sparse-approximation","display_name":"Sparse approximation","score":0.6088670492172241},{"id":"https://openalex.org/keywords/representation","display_name":"Representation (politics)","score":0.5457987785339355},{"id":"https://openalex.org/keywords/stage","display_name":"Stage (stratigraphy)","score":0.5242852568626404},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5206621885299683},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.37153559923171997},{"id":"https://openalex.org/keywords/computer-engineering","display_name":"Computer engineering","score":0.3242778182029724},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.306477427482605},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.2911357283592224},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.173431396484375},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.12128910422325134},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.10336577892303467}],"concepts":[{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.6934585571289062},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6576752066612244},{"id":"https://openalex.org/C77618280","wikidata":"https://www.wikidata.org/wiki/Q1155772","display_name":"Scheme (mathematics)","level":2,"score":0.6262049674987793},{"id":"https://openalex.org/C124066611","wikidata":"https://www.wikidata.org/wiki/Q28684319","display_name":"Sparse approximation","level":2,"score":0.6088670492172241},{"id":"https://openalex.org/C2776359362","wikidata":"https://www.wikidata.org/wiki/Q2145286","display_name":"Representation (politics)","level":3,"score":0.5457987785339355},{"id":"https://openalex.org/C146357865","wikidata":"https://www.wikidata.org/wiki/Q1123245","display_name":"Stage (stratigraphy)","level":2,"score":0.5242852568626404},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5206621885299683},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.37153559923171997},{"id":"https://openalex.org/C113775141","wikidata":"https://www.wikidata.org/wiki/Q428691","display_name":"Computer engineering","level":1,"score":0.3242778182029724},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.306477427482605},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.2911357283592224},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.173431396484375},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.12128910422325134},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.10336577892303467},{"id":"https://openalex.org/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","level":1,"score":0.0},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","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},{"id":"https://openalex.org/C94625758","wikidata":"https://www.wikidata.org/wiki/Q7163","display_name":"Politics","level":2,"score":0.0},{"id":"https://openalex.org/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/wcsp62071.2024.10826928","is_oa":false,"landing_page_url":"https://doi.org/10.1109/wcsp62071.2024.10826928","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2024 16th International Conference on Wireless Communications and Signal Processing (WCSP)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320329515","display_name":"China Mobile Research Institute","ror":null}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":15,"referenced_works":["https://openalex.org/W2071282831","https://openalex.org/W2908603021","https://openalex.org/W2968810373","https://openalex.org/W2985466239","https://openalex.org/W3012057956","https://openalex.org/W3091752016","https://openalex.org/W3129486236","https://openalex.org/W3133878048","https://openalex.org/W3159402647","https://openalex.org/W3165210976","https://openalex.org/W4207046521","https://openalex.org/W4312398668","https://openalex.org/W4317419394","https://openalex.org/W4320029311","https://openalex.org/W4393207110"],"related_works":["https://openalex.org/W2329386257","https://openalex.org/W2503350049","https://openalex.org/W1975289146","https://openalex.org/W2397616145","https://openalex.org/W2397320258","https://openalex.org/W2545343974","https://openalex.org/W4291895924","https://openalex.org/W4224872188","https://openalex.org/W4285223123","https://openalex.org/W4386970495"],"abstract_inverted_index":{"To":[0],"realize":[1],"the":[2,15,24,57,69,84,90,97,104,122,130,135,141,145,153,170,194],"full":[3],"potential":[4],"of":[5,17,87,99,138,155,174],"reconfigurable":[6],"intelligent":[7],"surface":[8],"(RIS)-assisted":[9],"massive":[10,52],"multiple-input":[11],"multiple-output":[12],"(MIMO)":[13],"systems,":[14],"acquisition":[16],"accurate":[18],"channel":[19,27,35,54,61,107,198],"information":[20],"is":[21,115],"crucial.":[22],"However,":[23],"high-dimensional":[25,105],"cascaded":[26,106],"considering":[28],"its":[29],"underlying":[30,171],"structured":[31],"sparsity":[32,173],"makes":[33],"efficient":[34,50],"estimation":[36,55],"scheme":[37,48],"design":[38],"a":[39,45,73,159],"challenging":[40],"task.":[41],"This":[42],"paper":[43],"develops":[44],"novel":[46],"two-stage":[47],"for":[49,59,103,196],"RIS-assisted":[51],"MIMO":[53],"where":[56],"methods":[58],"sparse":[60,100,197],"representation":[62,101,199],"and":[63,134,200],"recovery":[64],"are":[65],"respectively":[66],"designed.":[67],"For":[68,140],"former,":[70],"we":[71,157],"develop":[72,158],"random":[74,136],"search":[75],"orthogonal":[76],"matching":[77],"pursuit":[78],"(RSOMP)":[79],"algorithm":[80],"to":[81,143,187],"exactly":[82],"estimate":[83],"common":[85],"angles":[86],"arrival":[88],"at":[89],"base":[91],"station":[92],"side,":[93],"based":[94],"on":[95],"which":[96,167],"dimension":[98],"dictionary":[102],"can":[108,118,183],"be":[109],"significantly":[110],"reduced.":[111],"The":[112],"remarkable":[113],"thing":[114],"that":[116,179],"it":[117],"efficiently":[119],"cope":[120],"with":[121],"off-grid":[123],"error":[124],"caused":[125],"by":[126],"direction":[127],"mismatch":[128],"between":[129],"fixed":[131],"sampling":[132],"grids":[133],"directions":[137],"angles.":[139],"latter,":[142],"relieve":[144],"high-computational":[146],"complexity":[147],"involving":[148],"matrix":[149],"inversion":[150],"when":[151],"calculating":[152],"posterior":[154],"channels,":[156],"pattern-coupled":[160],"covariance":[161],"free":[162],"expectation":[163],"maximization":[164],"(PC-CoFEM)":[165],"algorithm,":[166],"simultaneously":[168],"exploits":[169],"block-structured":[172],"channels.":[175],"Simulation":[176],"results":[177],"demonstrate":[178],"our":[180],"proposed":[181],"schemes":[182,189],"achieve":[184],"superior":[185],"performance":[186],"comparison":[188],"as":[190,192],"well":[191],"illustrate":[193],"effectiveness":[195],"recovery.":[201]},"counts_by_year":[],"updated_date":"2025-12-27T23:08:20.325037","created_date":"2025-10-10T00:00:00"}