{"id":"https://openalex.org/W2103521506","doi":"https://doi.org/10.1109/mcom.2013.6495776","title":"Open research issues in multi-hop cognitive radio networks","display_name":"Open research issues in multi-hop cognitive radio networks","publication_year":2013,"publication_date":"2013-04-01","ids":{"openalex":"https://openalex.org/W2103521506","doi":"https://doi.org/10.1109/mcom.2013.6495776","mag":"2103521506"},"language":"en","primary_location":{"id":"doi:10.1109/mcom.2013.6495776","is_oa":false,"landing_page_url":"https://doi.org/10.1109/mcom.2013.6495776","pdf_url":null,"source":{"id":"https://openalex.org/S158797327","display_name":"IEEE Communications Magazine","issn_l":"0163-6804","issn":["0163-6804","1558-1896"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Communications Magazine","raw_type":"journal-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/A5100748436","display_name":"Shamik Sengupta","orcid":"https://orcid.org/0000-0002-2019-8056"},"institutions":[{"id":"https://openalex.org/I92507152","display_name":"John Jay College of Criminal Justice","ror":"https://ror.org/01p9rc392","country_code":"US","type":"education","lineage":["https://openalex.org/I92507152"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Shamik Sengupta","raw_affiliation_strings":["John Jay College of Criminal Justice, USA","John Jay College of Criminal Justice"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"John Jay College of Criminal Justice, USA","institution_ids":["https://openalex.org/I92507152"]},{"raw_affiliation_string":"John Jay College of Criminal Justice","institution_ids":["https://openalex.org/I92507152"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5033041089","display_name":"K. P. Subbalakshmi","orcid":"https://orcid.org/0000-0002-1670-9378"},"institutions":[{"id":"https://openalex.org/I108468826","display_name":"Stevens Institute of Technology","ror":"https://ror.org/02z43xh36","country_code":"US","type":"education","lineage":["https://openalex.org/I108468826"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"K.P. Subbalakshmi","raw_affiliation_strings":["Stevens Institute of Technology, USA","Stevens Inst of Tech"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Stevens Institute of Technology, USA","institution_ids":["https://openalex.org/I108468826"]},{"raw_affiliation_string":"Stevens Inst of Tech","institution_ids":["https://openalex.org/I108468826"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":21.499,"has_fulltext":false,"cited_by_count":111,"citation_normalized_percentile":{"value":0.99420316,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":91,"max":100},"biblio":{"volume":"51","issue":"4","first_page":"168","last_page":"176"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10579","display_name":"Cognitive Radio Networks and Spectrum Sensing","score":0.9998999834060669,"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"}},"topics":[{"id":"https://openalex.org/T10579","display_name":"Cognitive Radio Networks and Spectrum Sensing","score":0.9998999834060669,"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":0.9998999834060669,"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/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"}}],"keywords":[{"id":"https://openalex.org/keywords/cognitive-radio","display_name":"Cognitive radio","score":0.8824754953384399},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8403811454772949},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.7204222679138184},{"id":"https://openalex.org/keywords/cognitive-network","display_name":"Cognitive network","score":0.6890994906425476},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.5061902403831482},{"id":"https://openalex.org/keywords/wireless-network","display_name":"Wireless network","score":0.4962356686592102},{"id":"https://openalex.org/keywords/radio-resource-management","display_name":"Radio resource management","score":0.4944186210632324},{"id":"https://openalex.org/keywords/relay","display_name":"Relay","score":0.4936181306838989},{"id":"https://openalex.org/keywords/bandwidth","display_name":"Bandwidth (computing)","score":0.4421735107898712},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.4216734766960144},{"id":"https://openalex.org/keywords/open-research","display_name":"Open research","score":0.4176379144191742}],"concepts":[{"id":"https://openalex.org/C149946192","wikidata":"https://www.wikidata.org/wiki/Q3235733","display_name":"Cognitive radio","level":3,"score":0.8824754953384399},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8403811454772949},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.7204222679138184},{"id":"https://openalex.org/C32542511","wikidata":"https://www.wikidata.org/wiki/Q5141225","display_name":"Cognitive network","level":4,"score":0.6890994906425476},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.5061902403831482},{"id":"https://openalex.org/C108037233","wikidata":"https://www.wikidata.org/wiki/Q11375","display_name":"Wireless network","level":3,"score":0.4962356686592102},{"id":"https://openalex.org/C182448111","wikidata":"https://www.wikidata.org/wiki/Q7281197","display_name":"Radio resource management","level":4,"score":0.4944186210632324},{"id":"https://openalex.org/C2778156585","wikidata":"https://www.wikidata.org/wiki/Q174053","display_name":"Relay","level":3,"score":0.4936181306838989},{"id":"https://openalex.org/C2776257435","wikidata":"https://www.wikidata.org/wiki/Q1576430","display_name":"Bandwidth (computing)","level":2,"score":0.4421735107898712},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.4216734766960144},{"id":"https://openalex.org/C2778464652","wikidata":"https://www.wikidata.org/wiki/Q309849","display_name":"Open research","level":2,"score":0.4176379144191742},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","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/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/mcom.2013.6495776","is_oa":false,"landing_page_url":"https://doi.org/10.1109/mcom.2013.6495776","pdf_url":null,"source":{"id":"https://openalex.org/S158797327","display_name":"IEEE Communications Magazine","issn_l":"0163-6804","issn":["0163-6804","1558-1896"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Communications Magazine","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":11,"referenced_works":["https://openalex.org/W2000810421","https://openalex.org/W2083734461","https://openalex.org/W2122383392","https://openalex.org/W2122473665","https://openalex.org/W2142422438","https://openalex.org/W2148158683","https://openalex.org/W2149549738","https://openalex.org/W2156207742","https://openalex.org/W2157782694","https://openalex.org/W6671256761","https://openalex.org/W6678186627"],"related_works":["https://openalex.org/W1970717624","https://openalex.org/W2132553796","https://openalex.org/W2111431066","https://openalex.org/W2386044960","https://openalex.org/W2153200488","https://openalex.org/W2603988754","https://openalex.org/W4239573465","https://openalex.org/W2071707134","https://openalex.org/W4247054955","https://openalex.org/W2535825388"],"abstract_inverted_index":{"Cognitive":[0],"radio":[1,9,31,37,71,97,126],"networks":[2,38,72,98],"hold":[3],"the":[4,14,28,60,65,92,114,123],"key":[5],"to":[6,105],"achieving":[7],"better":[8],"bandwidth":[10,42],"utilization":[11],"and":[12,56,87,119],"improving":[13],"quality":[15],"of":[16,68,94,122],"wireless":[17,61],"applications.":[18],"The":[19],"next":[20],"step":[21],"in":[22,91],"this":[23,80],"fast":[24],"emerging":[25],"paradigm":[26],"is":[27],"multi-hop":[29,35,69,95,124],"cognitive":[30,36,70,96,125],"network.":[32],"Well":[33],"designed":[34],"can":[39],"provide":[40,53],"high":[41],"efficiency":[43],"by":[44],"using":[45],"dynamic":[46],"spectrum":[47,133],"access":[48,116],"technologies":[49],"as":[50,52,99,101],"well":[51,100],"extended":[54],"coverage":[55],"ubiquitous":[57],"connectivity":[58],"for":[59],"end":[62],"users.":[63],"However,":[64],"special":[66],"features":[67],"also":[73],"raise":[74],"several":[75],"unique":[76,85],"design":[77,93],"challenges.":[78,108],"In":[79],"article,":[81],"we":[82],"survey":[83],"these":[84,107],"challenges":[86],"open":[88],"research":[89],"issues":[90],"discuss":[102],"potential":[103],"approaches":[104],"address":[106],"This":[109],"article":[110],"specifically":[111],"focuses":[112],"on":[113],"medium":[115],"control":[117],"(MAC)":[118],"network":[120],"layers":[121],"protocol":[127],"stack.":[128],"Issues":[129],"considered":[130],"include":[131],"efficient":[132],"sharing,":[134],"optimal":[135],"relay":[136],"node":[137],"selection,":[138],"interference":[139],"mitigation,":[140],"end-to-end":[141],"delay,":[142],"etc.":[143]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":3},{"year":2021,"cited_by_count":10},{"year":2020,"cited_by_count":7},{"year":2019,"cited_by_count":5},{"year":2018,"cited_by_count":9},{"year":2017,"cited_by_count":17},{"year":2016,"cited_by_count":11},{"year":2015,"cited_by_count":22},{"year":2014,"cited_by_count":19},{"year":2013,"cited_by_count":3}],"updated_date":"2026-07-21T08:15:58.654021","created_date":"2025-10-10T00:00:00"}