{"id":"https://openalex.org/W2084548918","doi":"https://doi.org/10.1109/wcsp.2011.6096929","title":"Graph-based spectrum sharing for multiuser OFDM Cognitive Radio Networks","display_name":"Graph-based spectrum sharing for multiuser OFDM Cognitive Radio Networks","publication_year":2011,"publication_date":"2011-11-01","ids":{"openalex":"https://openalex.org/W2084548918","doi":"https://doi.org/10.1109/wcsp.2011.6096929","mag":"2084548918"},"language":"en","primary_location":{"id":"doi:10.1109/wcsp.2011.6096929","is_oa":false,"landing_page_url":"https://doi.org/10.1109/wcsp.2011.6096929","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 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/A5075593602","display_name":"Tao Qiu","orcid":"https://orcid.org/0000-0002-4406-5872"},"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"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Tao Qiu","raw_affiliation_strings":["Mobile Communication Laboratory, School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, China","Mobile Communication Lab, School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, P.R. China"],"affiliations":[{"raw_affiliation_string":"Mobile Communication Laboratory, School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, China","institution_ids":["https://openalex.org/I139759216"]},{"raw_affiliation_string":"Mobile Communication Lab, School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, P.R. China","institution_ids":["https://openalex.org/I139759216"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5059494893","display_name":"Wenjun Xu","orcid":"https://orcid.org/0000-0001-8767-4742"},"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"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Wenjun Xu","raw_affiliation_strings":["Mobile Communication Laboratory, School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, China","Mobile Communication Lab, School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, P.R. China"],"affiliations":[{"raw_affiliation_string":"Mobile Communication Laboratory, School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, China","institution_ids":["https://openalex.org/I139759216"]},{"raw_affiliation_string":"Mobile Communication Lab, School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, P.R. China","institution_ids":["https://openalex.org/I139759216"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100689912","display_name":"Zhiqiang He","orcid":"https://orcid.org/0000-0002-5010-3118"},"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"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhiqiang He","raw_affiliation_strings":["Mobile Communication Laboratory, School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, China","Mobile Communication Lab, School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, P.R. China"],"affiliations":[{"raw_affiliation_string":"Mobile Communication Laboratory, School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, China","institution_ids":["https://openalex.org/I139759216"]},{"raw_affiliation_string":"Mobile Communication Lab, School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, P.R. China","institution_ids":["https://openalex.org/I139759216"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5008455605","display_name":"Kai Niu","orcid":"https://orcid.org/0000-0002-8076-1867"},"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"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Kai Niu","raw_affiliation_strings":["Mobile Communication Laboratory, School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, China","Mobile Communication Lab, School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, P.R. China"],"affiliations":[{"raw_affiliation_string":"Mobile Communication Laboratory, School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, China","institution_ids":["https://openalex.org/I139759216"]},{"raw_affiliation_string":"Mobile Communication Lab, School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, P.R. China","institution_ids":["https://openalex.org/I139759216"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5113818722","display_name":"Baoyu Tian","orcid":null},"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"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Baoyu Tian","raw_affiliation_strings":["Mobile Communication Laboratory, School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, China","Mobile Communication Lab, School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, P.R. China"],"affiliations":[{"raw_affiliation_string":"Mobile Communication Laboratory, School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, China","institution_ids":["https://openalex.org/I139759216"]},{"raw_affiliation_string":"Mobile Communication Lab, School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, P.R. China","institution_ids":["https://openalex.org/I139759216"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5075593602"],"corresponding_institution_ids":["https://openalex.org/I139759216"],"apc_list":null,"apc_paid":null,"fwci":0.5299,"has_fulltext":false,"cited_by_count":7,"citation_normalized_percentile":{"value":0.70746953,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":null,"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":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"}},"topics":[{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","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/T10579","display_name":"Cognitive Radio Networks and Spectrum Sensing","score":0.9995999932289124,"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/T10796","display_name":"Cooperative Communication and Network Coding","score":0.9995999932289124,"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/cognitive-radio","display_name":"Cognitive radio","score":0.8490841388702393},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7545208930969238},{"id":"https://openalex.org/keywords/underlay","display_name":"Underlay","score":0.7348671555519104},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.5923601388931274},{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.5412253141403198},{"id":"https://openalex.org/keywords/scalability","display_name":"Scalability","score":0.5312620997428894},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.48063531517982483},{"id":"https://openalex.org/keywords/heuristic","display_name":"Heuristic","score":0.46992361545562744},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.40485599637031555},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.25731849670410156},{"id":"https://openalex.org/keywords/signal-to-noise-ratio","display_name":"Signal-to-noise ratio (imaging)","score":0.1753133237361908},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.17461606860160828}],"concepts":[{"id":"https://openalex.org/C149946192","wikidata":"https://www.wikidata.org/wiki/Q3235733","display_name":"Cognitive radio","level":3,"score":0.8490841388702393},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7545208930969238},{"id":"https://openalex.org/C2777679929","wikidata":"https://www.wikidata.org/wiki/Q7883709","display_name":"Underlay","level":3,"score":0.7348671555519104},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.5923601388931274},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.5412253141403198},{"id":"https://openalex.org/C48044578","wikidata":"https://www.wikidata.org/wiki/Q727490","display_name":"Scalability","level":2,"score":0.5312620997428894},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.48063531517982483},{"id":"https://openalex.org/C173801870","wikidata":"https://www.wikidata.org/wiki/Q201413","display_name":"Heuristic","level":2,"score":0.46992361545562744},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.40485599637031555},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.25731849670410156},{"id":"https://openalex.org/C13944312","wikidata":"https://www.wikidata.org/wiki/Q7512748","display_name":"Signal-to-noise ratio (imaging)","level":2,"score":0.1753133237361908},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.17461606860160828},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.0},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/wcsp.2011.6096929","is_oa":false,"landing_page_url":"https://doi.org/10.1109/wcsp.2011.6096929","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 International Conference on Wireless Communications and Signal Processing (WCSP)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":10,"referenced_works":["https://openalex.org/W2086917808","https://openalex.org/W2111482844","https://openalex.org/W2118409752","https://openalex.org/W2119039041","https://openalex.org/W2128366261","https://openalex.org/W2153528617","https://openalex.org/W2163338810","https://openalex.org/W2168078104","https://openalex.org/W2170991283","https://openalex.org/W2171501928"],"related_works":["https://openalex.org/W4255303560","https://openalex.org/W1975029702","https://openalex.org/W1943171502","https://openalex.org/W2744240346","https://openalex.org/W2769590643","https://openalex.org/W2169642774","https://openalex.org/W2532161418","https://openalex.org/W2556201531","https://openalex.org/W2783065147","https://openalex.org/W4312723892"],"abstract_inverted_index":{"Spectrum":[0,35],"sharing":[1,36,68],"in":[2,18,41],"OFDM-based":[3],"Cognitive":[4],"Radio":[5],"Networks":[6],"(CRN)":[7],"is":[8,48,81],"investigated":[9],"by":[10],"using":[11],"graph":[12,88],"theory.":[13],"We":[14,64],"consider":[15],"the":[16,53,58,66,107,120,134,138],"networks":[17],"which":[19,99],"a":[20],"set":[21],"of":[22,52,62,109,122,137],"secondary":[23],"links":[24,51],"(SLs)":[25],"make":[26],"underlay":[27],"access":[28],"to":[29,50,117,132],"support":[30],"single-hop":[31],"ad":[32],"hoc":[33],"transmission.":[34],"must":[37],"be":[38],"carried":[39],"out":[40],"SLs":[42],"so":[43],"that":[44],"no":[45],"excessive":[46],"interference":[47,73,87,110],"caused":[49],"primary":[54],"network":[55],"and":[56,75,89],"maximizes":[57],"total":[59],"achievable":[60],"rates":[61],"SLs.":[63],"divide":[65],"spectrum":[67],"into":[69,104],"two":[70],"stages:":[71],"coarse-scale":[72],"mitigation":[74,80],"SINR-based":[76],"channel":[77,102],"mapping.":[78],"Interference":[79],"done":[82],"through":[83],"constructing":[84],"weighted":[85],"undirected":[86],"applying":[90],"k-max":[91],"cut":[92],"method.":[93],"Then":[94],"we":[95],"perform":[96],"channel-cluster":[97],"mapping,":[98],"takes":[100],"instantaneous":[101],"quality":[103],"consider,":[105],"on":[106],"basis":[108],"mitigation.":[111],"Low-complexity":[112],"heuristic":[113],"algorithms":[114],"are":[115,130],"proposed":[116,139],"effectively":[118],"solve":[119],"problems":[121],"each":[123],"stage.":[124],"Numerical":[125],"simulations":[126],"for":[127],"various":[128],"scenarios":[129],"executed":[131],"show":[133],"superior":[135],"performance":[136],"schemes.":[140]},"counts_by_year":[{"year":2019,"cited_by_count":1},{"year":2017,"cited_by_count":4},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}