{"id":"https://openalex.org/W1996635850","doi":"https://doi.org/10.1109/vtcfall.2014.6966015","title":"Interference Alignment for VFDM Based Uplink Transmission in Two-Tiered Networks","display_name":"Interference Alignment for VFDM Based Uplink Transmission in Two-Tiered Networks","publication_year":2014,"publication_date":"2014-09-01","ids":{"openalex":"https://openalex.org/W1996635850","doi":"https://doi.org/10.1109/vtcfall.2014.6966015","mag":"1996635850"},"language":"en","primary_location":{"id":"doi:10.1109/vtcfall.2014.6966015","is_oa":false,"landing_page_url":"https://doi.org/10.1109/vtcfall.2014.6966015","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2014 IEEE 80th Vehicular Technology Conference (VTC2014-Fall)","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/A5078403280","display_name":"Zhonglin Xu","orcid":"https://orcid.org/0000-0003-0524-7662"},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Zhonglin Xu","raw_affiliation_strings":["State Key Laboratory of Integrated Service Networks, Xidian University, Xi'an, Shaanxi, P.R. China","State Key Lab of Integrated Service Networks, Xidian University, Xi'an China"],"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Integrated Service Networks, Xidian University, Xi'an, Shaanxi, P.R. China","institution_ids":["https://openalex.org/I149594827"]},{"raw_affiliation_string":"State Key Lab of Integrated Service Networks, Xidian University, Xi'an China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5035054120","display_name":"Wei Liu","orcid":"https://orcid.org/0000-0003-1285-2334"},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Wei Liu","raw_affiliation_strings":["State Key Laboratory of Integrated Service Networks, Xidian University, Xi'an, Shaanxi, P.R. China","State Key Lab of Integrated Service Networks, Xidian University, Xi'an China"],"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Integrated Service Networks, Xidian University, Xi'an, Shaanxi, P.R. China","institution_ids":["https://openalex.org/I149594827"]},{"raw_affiliation_string":"State Key Lab of Integrated Service Networks, Xidian University, Xi'an China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5004181029","display_name":"Jiandong Li","orcid":"https://orcid.org/0000-0002-8851-836X"},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jiandong Li","raw_affiliation_strings":["State Key Laboratory of Integrated Service Networks, Xidian University, Xi'an, Shaanxi, P.R. China","State Key Lab of Integrated Service Networks, Xidian University, Xi'an China"],"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Integrated Service Networks, Xidian University, Xi'an, Shaanxi, P.R. China","institution_ids":["https://openalex.org/I149594827"]},{"raw_affiliation_string":"State Key Lab of Integrated Service Networks, Xidian University, Xi'an China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100432500","display_name":"Qin Liu","orcid":"https://orcid.org/0000-0002-8979-5094"},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Qin Liu","raw_affiliation_strings":["State Key Laboratory of Integrated Service Networks, Xidian University, Xi'an, Shaanxi, P.R. China","State Key Lab of Integrated Service Networks, Xidian University, Xi'an China"],"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Integrated Service Networks, Xidian University, Xi'an, Shaanxi, P.R. China","institution_ids":["https://openalex.org/I149594827"]},{"raw_affiliation_string":"State Key Lab of Integrated Service Networks, Xidian University, Xi'an China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5074481076","display_name":"Pengyu Huang","orcid":"https://orcid.org/0000-0003-4035-3938"},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Pengyu Huang","raw_affiliation_strings":["State Key Laboratory of Integrated Service Networks, Xidian University, Xi'an, Shaanxi, P.R. China","State Key Lab of Integrated Service Networks, Xidian University, Xi'an China"],"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Integrated Service Networks, Xidian University, Xi'an, Shaanxi, P.R. China","institution_ids":["https://openalex.org/I149594827"]},{"raw_affiliation_string":"State Key Lab of Integrated Service Networks, Xidian University, Xi'an China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100404427","display_name":"Chuan Li","orcid":"https://orcid.org/0000-0003-0004-1497"},"institutions":[{"id":"https://openalex.org/I4210136859","display_name":"Xi\u2019an University of Posts and Telecommunications","ror":"https://ror.org/04jn0td46","country_code":"CN","type":"education","lineage":["https://openalex.org/I4210136859"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Chuan Li","raw_affiliation_strings":["School of Computer and Technology, Xi'an University of Posts and Telecommunications, Xi'an, Shaanxi, P.R. China","Sch. of Comput. & Technol., Xi'an Univ. of Posts & Telecommun., Xi'an, China"],"affiliations":[{"raw_affiliation_string":"School of Computer and Technology, Xi'an University of Posts and Telecommunications, Xi'an, Shaanxi, P.R. China","institution_ids":["https://openalex.org/I4210136859"]},{"raw_affiliation_string":"Sch. of Comput. & Technol., Xi'an Univ. of Posts & Telecommun., Xi'an, China","institution_ids":["https://openalex.org/I4210136859"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5078403280"],"corresponding_institution_ids":["https://openalex.org/I149594827"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.06067646,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"31","issue":null,"first_page":"1","last_page":"5"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","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/T10148","display_name":"Advanced MIMO Systems Optimization","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/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.9998000264167786,"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/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"}}],"keywords":[{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.7654235363006592},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.7053856253623962},{"id":"https://openalex.org/keywords/null","display_name":"Null (SQL)","score":0.5983555316925049},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5875886082649231},{"id":"https://openalex.org/keywords/single-antenna-interference-cancellation","display_name":"Single antenna interference cancellation","score":0.5777806043624878},{"id":"https://openalex.org/keywords/subspace-topology","display_name":"Subspace topology","score":0.5655553340911865},{"id":"https://openalex.org/keywords/transmission","display_name":"Transmission (telecommunications)","score":0.5279796719551086},{"id":"https://openalex.org/keywords/multiplexing","display_name":"Multiplexing","score":0.5065125226974487},{"id":"https://openalex.org/keywords/cyclic-prefix","display_name":"Cyclic prefix","score":0.49014052748680115},{"id":"https://openalex.org/keywords/vandermonde-matrix","display_name":"Vandermonde matrix","score":0.4695573151111603},{"id":"https://openalex.org/keywords/macro","display_name":"Macro","score":0.4494398236274719},{"id":"https://openalex.org/keywords/co-channel-interference","display_name":"Co-channel interference","score":0.4420594274997711},{"id":"https://openalex.org/keywords/topology","display_name":"Topology (electrical circuits)","score":0.35560113191604614},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.35036975145339966},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.3229495882987976},{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.313476026058197},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.2574964165687561},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.24493208527565002},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.1826503574848175},{"id":"https://openalex.org/keywords/decoding-methods","display_name":"Decoding methods","score":0.15111073851585388},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.13003385066986084},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.09476527571678162}],"concepts":[{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.7654235363006592},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.7053856253623962},{"id":"https://openalex.org/C203763787","wikidata":"https://www.wikidata.org/wiki/Q371029","display_name":"Null (SQL)","level":2,"score":0.5983555316925049},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5875886082649231},{"id":"https://openalex.org/C83204339","wikidata":"https://www.wikidata.org/wiki/Q7523915","display_name":"Single antenna interference cancellation","level":3,"score":0.5777806043624878},{"id":"https://openalex.org/C32834561","wikidata":"https://www.wikidata.org/wiki/Q660730","display_name":"Subspace topology","level":2,"score":0.5655553340911865},{"id":"https://openalex.org/C761482","wikidata":"https://www.wikidata.org/wiki/Q118093","display_name":"Transmission (telecommunications)","level":2,"score":0.5279796719551086},{"id":"https://openalex.org/C19275194","wikidata":"https://www.wikidata.org/wiki/Q222903","display_name":"Multiplexing","level":2,"score":0.5065125226974487},{"id":"https://openalex.org/C2778775284","wikidata":"https://www.wikidata.org/wiki/Q5198224","display_name":"Cyclic prefix","level":4,"score":0.49014052748680115},{"id":"https://openalex.org/C55294529","wikidata":"https://www.wikidata.org/wiki/Q579544","display_name":"Vandermonde matrix","level":3,"score":0.4695573151111603},{"id":"https://openalex.org/C166955791","wikidata":"https://www.wikidata.org/wiki/Q629579","display_name":"Macro","level":2,"score":0.4494398236274719},{"id":"https://openalex.org/C6532628","wikidata":"https://www.wikidata.org/wiki/Q5137431","display_name":"Co-channel interference","level":4,"score":0.4420594274997711},{"id":"https://openalex.org/C184720557","wikidata":"https://www.wikidata.org/wiki/Q7825049","display_name":"Topology (electrical circuits)","level":2,"score":0.35560113191604614},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.35036975145339966},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.3229495882987976},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.313476026058197},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2574964165687561},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.24493208527565002},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.1826503574848175},{"id":"https://openalex.org/C57273362","wikidata":"https://www.wikidata.org/wiki/Q576722","display_name":"Decoding methods","level":2,"score":0.15111073851585388},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.13003385066986084},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.09476527571678162},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"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/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/vtcfall.2014.6966015","is_oa":false,"landing_page_url":"https://doi.org/10.1109/vtcfall.2014.6966015","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2014 IEEE 80th Vehicular Technology Conference (VTC2014-Fall)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.8100000023841858,"id":"https://metadata.un.org/sdg/16","display_name":"Peace, Justice and strong institutions"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":15,"referenced_works":["https://openalex.org/W1627255798","https://openalex.org/W1979408141","https://openalex.org/W1996729712","https://openalex.org/W2011220219","https://openalex.org/W2012998414","https://openalex.org/W2031007827","https://openalex.org/W2071707134","https://openalex.org/W2100544108","https://openalex.org/W2107058626","https://openalex.org/W2112844087","https://openalex.org/W2119706299","https://openalex.org/W2122496159","https://openalex.org/W2164168142","https://openalex.org/W2165993967","https://openalex.org/W6675879263"],"related_works":["https://openalex.org/W2100820311","https://openalex.org/W2370038111","https://openalex.org/W2064180252","https://openalex.org/W2806013832","https://openalex.org/W2996156088","https://openalex.org/W2098086150","https://openalex.org/W2165591480","https://openalex.org/W2117519826","https://openalex.org/W1555606283","https://openalex.org/W2548856584"],"abstract_inverted_index":{"In":[0],"this":[1,82],"work,":[2],"we":[3,85,97],"study":[4],"the":[5,23,46,52,71,87,99],"problem":[6],"of":[7,65,89,102],"interference":[8,24,58,72],"in":[9],"a":[10,16,66,77],"two-tiered":[11],"uplink":[12],"network":[13],"which":[14],"contains":[15],"macro-cell":[17,28,53],"and":[18,41],"multiple":[19,74],"small-cells.":[20],"We":[21,55],"null":[22,42,94],"from":[25],"small-cells":[26,75],"to":[27,69,93],"by":[29,45,51,80],"using":[30,81],"Vandermonde-subspace":[31],"frequency":[32,39],"division":[33],"multiplexing":[34],"(VFDM).":[35],"VFDM":[36],"can":[37],"exploit":[38],"selectivity":[40],"space":[43],"generated":[44],"cyclic":[47],"prefixes":[48],"(CP)":[49],"used":[50],"communication.":[54],"use":[56],"an":[57,63],"alignment":[59],"(IA)":[60],"scheme":[61],"with":[62],"extension":[64],"grouping":[67,83],"method":[68,84],"align":[70],"between":[73],"into":[76],"lower":[78],"dimensional-subspace,":[79],"reduce":[86],"number":[88],"receive":[90],"antennas":[91],"required":[92],"interference.":[95],"Finally,":[96],"derive":[98],"achievable":[100],"degrees":[101],"freedom":[103],"(DoF).":[104]},"counts_by_year":[{"year":2020,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}