{"id":"https://openalex.org/W2165296637","doi":"https://doi.org/10.1109/icassp.2009.4960090","title":"Beacon-assisted spectrum access with cooperative cognitive transmitter and receiver","display_name":"Beacon-assisted spectrum access with cooperative cognitive transmitter and receiver","publication_year":2009,"publication_date":"2009-04-01","ids":{"openalex":"https://openalex.org/W2165296637","doi":"https://doi.org/10.1109/icassp.2009.4960090","mag":"2165296637"},"language":"en","primary_location":{"id":"doi:10.1109/icassp.2009.4960090","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.2009.4960090","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 IEEE International Conference on Acoustics, Speech and Signal Processing","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/A5054103414","display_name":"Ali Tajer","orcid":"https://orcid.org/0000-0002-3513-4135"},"institutions":[{"id":"https://openalex.org/I78577930","display_name":"Columbia University","ror":"https://ror.org/00hj8s172","country_code":"US","type":"education","lineage":["https://openalex.org/I78577930"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Ali Tajer","raw_affiliation_strings":["Columbia University, New York, NY, USA"],"affiliations":[{"raw_affiliation_string":"Columbia University, New York, NY, USA","institution_ids":["https://openalex.org/I78577930"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100382697","display_name":"Xiaodong Wang","orcid":"https://orcid.org/0000-0003-0426-1358"},"institutions":[{"id":"https://openalex.org/I78577930","display_name":"Columbia University","ror":"https://ror.org/00hj8s172","country_code":"US","type":"education","lineage":["https://openalex.org/I78577930"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Xiaodong Wang","raw_affiliation_strings":["Columbia University, New York, NY, USA"],"affiliations":[{"raw_affiliation_string":"Columbia University, New York, NY, USA","institution_ids":["https://openalex.org/I78577930"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5054103414"],"corresponding_institution_ids":["https://openalex.org/I78577930"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.22056552,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"2341","last_page":"2344"},"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":0.9994000196456909,"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":0.9970999956130981,"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":0.8497143983840942},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7789465188980103},{"id":"https://openalex.org/keywords/relay","display_name":"Relay","score":0.6957674026489258},{"id":"https://openalex.org/keywords/transmitter","display_name":"Transmitter","score":0.6871026754379272},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.6729230880737305},{"id":"https://openalex.org/keywords/codebook","display_name":"Codebook","score":0.608934760093689},{"id":"https://openalex.org/keywords/diversity-gain","display_name":"Diversity gain","score":0.5954861044883728},{"id":"https://openalex.org/keywords/cooperative-diversity","display_name":"Cooperative diversity","score":0.5504452586174011},{"id":"https://openalex.org/keywords/decoding-methods","display_name":"Decoding methods","score":0.5168929100036621},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.43876710534095764},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.40176641941070557},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.3306305408477783},{"id":"https://openalex.org/keywords/fading","display_name":"Fading","score":0.09993785619735718}],"concepts":[{"id":"https://openalex.org/C149946192","wikidata":"https://www.wikidata.org/wiki/Q3235733","display_name":"Cognitive radio","level":3,"score":0.8497143983840942},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7789465188980103},{"id":"https://openalex.org/C2778156585","wikidata":"https://www.wikidata.org/wiki/Q174053","display_name":"Relay","level":3,"score":0.6957674026489258},{"id":"https://openalex.org/C47798520","wikidata":"https://www.wikidata.org/wiki/Q190157","display_name":"Transmitter","level":3,"score":0.6871026754379272},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.6729230880737305},{"id":"https://openalex.org/C127759330","wikidata":"https://www.wikidata.org/wiki/Q637416","display_name":"Codebook","level":2,"score":0.608934760093689},{"id":"https://openalex.org/C164785522","wikidata":"https://www.wikidata.org/wiki/Q5283966","display_name":"Diversity gain","level":4,"score":0.5954861044883728},{"id":"https://openalex.org/C6832461","wikidata":"https://www.wikidata.org/wiki/Q5167914","display_name":"Cooperative diversity","level":4,"score":0.5504452586174011},{"id":"https://openalex.org/C57273362","wikidata":"https://www.wikidata.org/wiki/Q576722","display_name":"Decoding methods","level":2,"score":0.5168929100036621},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.43876710534095764},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.40176641941070557},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.3306305408477783},{"id":"https://openalex.org/C81978471","wikidata":"https://www.wikidata.org/wiki/Q1196572","display_name":"Fading","level":3,"score":0.09993785619735718},{"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/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icassp.2009.4960090","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.2009.4960090","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 IEEE International Conference on Acoustics, Speech and Signal Processing","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Partnerships for the goals","id":"https://metadata.un.org/sdg/17","score":0.5199999809265137}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":27,"referenced_works":["https://openalex.org/W111155774","https://openalex.org/W598996319","https://openalex.org/W1522045078","https://openalex.org/W1978309834","https://openalex.org/W1983855715","https://openalex.org/W2002937495","https://openalex.org/W2071707134","https://openalex.org/W2096352778","https://openalex.org/W2098586087","https://openalex.org/W2102617152","https://openalex.org/W2106915027","https://openalex.org/W2120975689","https://openalex.org/W2127593435","https://openalex.org/W2130347036","https://openalex.org/W2131229447","https://openalex.org/W2136337471","https://openalex.org/W2142819538","https://openalex.org/W2146025745","https://openalex.org/W2148963518","https://openalex.org/W2152121970","https://openalex.org/W2153090463","https://openalex.org/W2161391533","https://openalex.org/W2206509858","https://openalex.org/W3019114926","https://openalex.org/W3100839090","https://openalex.org/W6679489059","https://openalex.org/W6682468974"],"related_works":["https://openalex.org/W2131665415","https://openalex.org/W2363618716","https://openalex.org/W2113624196","https://openalex.org/W2353594815","https://openalex.org/W2136810841","https://openalex.org/W2081779132","https://openalex.org/W2132176174","https://openalex.org/W804581915","https://openalex.org/W1722995155","https://openalex.org/W2151944195"],"abstract_inverted_index":{"We":[0,147],"propose":[1],"a":[2,9,23,72,78,105,141,150,154,159,170,199],"novel":[3],"cooperative":[4],"communication":[5,215],"protocol":[6],"for":[7,27,67,144],"multicasting":[8],"common":[10],"message":[11,156],"from":[12],"one":[13,60],"source":[14],"to":[15,33,42,126,168,202],"two":[16,51],"destinations":[17,76],"and":[18,57,109,139,162],"based":[19],"on":[20,187],"that":[21,31,149],"offer":[22,140],"spectrum":[24,36,145,160],"access":[25],"scheme":[26],"the":[28,35,39,43,62,68,95,128,131,164,176,182,188,191,194,205,210],"cognitive":[29,124,171,195],"radios":[30],"seek":[32],"utilizing":[34],"holes":[37],"within":[38],"bands":[40],"licensed":[41],"legacy":[44],"systems.":[45],"The":[46],"proposed":[47,165,206],"cooperation":[48,99,166,186,207],"model":[49,167,208],"has":[50],"major":[52],"traits;":[53],"first,":[54],"by":[55],"opportunistically":[56],"dynamically":[58],"assigning":[59],"of":[61,130,184,190],"destination":[63],"nodes":[64],"as":[65,101,136,198],"relay":[66],"other":[69],"one,":[70],"via":[71],"single-time":[73],"relaying":[74],"both":[75],"achieves":[77],"second":[79],"order":[80],"diversity":[81,102,112],"gain.":[82],"Secondly,":[83],"it":[84],"guarantees":[85],"performance":[86],"improvement":[87,115],"over":[88,117],"all":[89],"SNR":[90,107],"regimes,":[91],"which":[92],"is":[93,104,134],"not":[94],"case":[96],"in":[97,174,213],"most":[98],"protocols":[100],"gain":[103],"high":[106,118],"measure":[108,201],"yielding":[110],"higher":[111],"orders":[113],"ensures":[114],"only":[116],"enough":[119],"SNRs.":[120],"Next,":[121],"we":[122,180],"consider":[123],"users,":[125],"whom":[127],"codebook":[129],"primary":[132,151],"users":[133,212],"known":[135],"side":[137],"information,":[138],"beacon-assisted":[142],"mechanism":[143],"access.":[146],"assume":[148],"user":[152],"multicasts":[153],"beacon":[155,177],"upon":[157],"releasing":[158],"band":[161],"adopt":[163],"strengthen":[169],"transmitter-receiver":[172,196],"pair":[173],"decoding":[175],"message.":[178],"Finally,":[179],"quantify":[181],"effect":[183],"such":[185],"capacity":[189],"channel":[192],"between":[193],"pair,":[197],"meaningful":[200],"assess":[203],"how":[204],"assists":[209],"secondary":[211],"exploiting":[214],"opportunities.":[216]},"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}