{"id":"https://openalex.org/W2583211257","doi":"https://doi.org/10.1109/glocom.2016.7842277","title":"Sparse Channel Estimation in OFDM Systems with Virtual Sub-Carriers","display_name":"Sparse Channel Estimation in OFDM Systems with Virtual Sub-Carriers","publication_year":2016,"publication_date":"2016-12-01","ids":{"openalex":"https://openalex.org/W2583211257","doi":"https://doi.org/10.1109/glocom.2016.7842277","mag":"2583211257"},"language":"en","primary_location":{"id":"doi:10.1109/glocom.2016.7842277","is_oa":false,"landing_page_url":"https://doi.org/10.1109/glocom.2016.7842277","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2016 IEEE Global Communications Conference (GLOBECOM)","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/A5060964810","display_name":"Sreejith Kallummil","orcid":"https://orcid.org/0000-0002-1909-716X"},"institutions":[{"id":"https://openalex.org/I24676775","display_name":"Indian Institute of Technology Madras","ror":"https://ror.org/03v0r5n49","country_code":"IN","type":"facility","lineage":["https://openalex.org/I24676775"]}],"countries":["IN"],"is_corresponding":true,"raw_author_name":"Sreejith Kallummil","raw_affiliation_strings":["Department of Electrical Engineering, Indian Institute of Technology Madras, Chennai, India"],"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, Indian Institute of Technology Madras, Chennai, India","institution_ids":["https://openalex.org/I24676775"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5046290878","display_name":"Sheetal Kalyani","orcid":"https://orcid.org/0000-0002-1530-0140"},"institutions":[{"id":"https://openalex.org/I24676775","display_name":"Indian Institute of Technology Madras","ror":"https://ror.org/03v0r5n49","country_code":"IN","type":"facility","lineage":["https://openalex.org/I24676775"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Sheetal Kalyani","raw_affiliation_strings":["Department of Electrical Engineering, Indian Institute of Technology Madras, Chennai, India"],"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, Indian Institute of Technology Madras, Chennai, India","institution_ids":["https://openalex.org/I24676775"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5060964810"],"corresponding_institution_ids":["https://openalex.org/I24676775"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":{"value":0.16113952,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"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/T10500","display_name":"Sparse and Compressive Sensing Techniques","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"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/T10500","display_name":"Sparse and Compressive Sensing Techniques","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"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":0.9995999932289124,"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/T10931","display_name":"Direction-of-Arrival Estimation Techniques","score":0.9995999932289124,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"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/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.9423462748527527},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6913915276527405},{"id":"https://openalex.org/keywords/compressed-sensing","display_name":"Compressed sensing","score":0.6827053427696228},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.613309383392334},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.5409054160118103},{"id":"https://openalex.org/keywords/subspace-topology","display_name":"Subspace topology","score":0.5237338542938232},{"id":"https://openalex.org/keywords/multiplexing","display_name":"Multiplexing","score":0.5054116249084473},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4840659201145172},{"id":"https://openalex.org/keywords/computational-complexity-theory","display_name":"Computational complexity theory","score":0.4751558005809784},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.45224177837371826},{"id":"https://openalex.org/keywords/frequency-division-multiplexing","display_name":"Frequency-division multiplexing","score":0.41888493299484253},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.4141658544540405},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.3209158778190613},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.2831243872642517},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.15800538659095764},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.11811739206314087}],"concepts":[{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.9423462748527527},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6913915276527405},{"id":"https://openalex.org/C124851039","wikidata":"https://www.wikidata.org/wiki/Q2665459","display_name":"Compressed sensing","level":2,"score":0.6827053427696228},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.613309383392334},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.5409054160118103},{"id":"https://openalex.org/C32834561","wikidata":"https://www.wikidata.org/wiki/Q660730","display_name":"Subspace topology","level":2,"score":0.5237338542938232},{"id":"https://openalex.org/C19275194","wikidata":"https://www.wikidata.org/wiki/Q222903","display_name":"Multiplexing","level":2,"score":0.5054116249084473},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4840659201145172},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.4751558005809784},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.45224177837371826},{"id":"https://openalex.org/C89061704","wikidata":"https://www.wikidata.org/wiki/Q5555726","display_name":"Frequency-division multiplexing","level":4,"score":0.41888493299484253},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.4141658544540405},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.3209158778190613},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.2831243872642517},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.15800538659095764},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.11811739206314087}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/glocom.2016.7842277","is_oa":false,"landing_page_url":"https://doi.org/10.1109/glocom.2016.7842277","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2016 IEEE Global Communications Conference (GLOBECOM)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/9","score":0.5400000214576721,"display_name":"Industry, innovation and infrastructure"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":27,"referenced_works":["https://openalex.org/W143004564","https://openalex.org/W162963782","https://openalex.org/W340244495","https://openalex.org/W1576241031","https://openalex.org/W1988451630","https://openalex.org/W2014933333","https://openalex.org/W2018372137","https://openalex.org/W2031839259","https://openalex.org/W2039851473","https://openalex.org/W2077789547","https://openalex.org/W2098704159","https://openalex.org/W2116148865","https://openalex.org/W2132381218","https://openalex.org/W2133698785","https://openalex.org/W2137628444","https://openalex.org/W2140577326","https://openalex.org/W2140856955","https://openalex.org/W2145900013","https://openalex.org/W2146000945","https://openalex.org/W2146020692","https://openalex.org/W2154394938","https://openalex.org/W2171646033","https://openalex.org/W2196317271","https://openalex.org/W2196956961","https://openalex.org/W2321848620","https://openalex.org/W2478503558","https://openalex.org/W4300263211"],"related_works":["https://openalex.org/W2005662164","https://openalex.org/W2003701703","https://openalex.org/W2092309091","https://openalex.org/W1998182654","https://openalex.org/W2111628958","https://openalex.org/W4224290052","https://openalex.org/W4226230195","https://openalex.org/W2009574894","https://openalex.org/W2566576294","https://openalex.org/W43516829"],"abstract_inverted_index":{"Sparse":[0],"channel":[1],"estimation":[2],"(SCE)":[3],"in":[4,23,31,64,92],"orthogonal":[5],"frequency":[6],"division":[7],"multiplexing":[8],"(OFDM)":[9],"systems":[10,28,94],"with":[11,95],"large":[12,96],"number":[13,97],"of":[14,44,83,98],"virtual":[15,99],"sub-carriers":[16,100],"and":[17,50,101],"regularly":[18],"spaced":[19],"pilots":[20],"is":[21],"studied":[22],"this":[24,74],"paper.":[25],"Such":[26],"OFDM":[27,66,93],"are":[29],"present":[30],"wireless":[32],"standards":[33],"like":[34,57],"long":[35],"term":[36],"evolution":[37],"(LTE).":[38],"We":[39,68],"numerically":[40],"evaluate":[41],"the":[42,81],"performance":[43],"popular":[45],"compressive":[46],"sensing":[47],"(CS)":[48],"algorithms":[49,56,89],"shows":[51],"that":[52],"low":[53,86],"complexity":[54,87],"CS":[55,88],"OMP,":[58],"subspace":[59],"pursuit":[60],"etc":[61],"performs":[62],"badly":[63],"these":[65],"systems.":[67],"also":[69],"provide":[70],"analytical":[71],"reasoning":[72],"for":[73,90],"suboptimal":[75],"performance.":[76],"This":[77],"paper":[78],"points":[79],"to":[80],"need":[82],"developing":[84],"new":[85],"SCE":[91],"equispaced":[102],"pilots.":[103]},"counts_by_year":[{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
