{"id":"https://openalex.org/W2012955345","doi":"https://doi.org/10.1109/iccomm.2014.6866763","title":"Demonstrator for voice communication over LTE","display_name":"Demonstrator for voice communication over LTE","publication_year":2014,"publication_date":"2014-05-01","ids":{"openalex":"https://openalex.org/W2012955345","doi":"https://doi.org/10.1109/iccomm.2014.6866763","mag":"2012955345"},"language":"en","primary_location":{"id":"doi:10.1109/iccomm.2014.6866763","is_oa":false,"landing_page_url":"https://doi.org/10.1109/iccomm.2014.6866763","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2014 10th International Conference on Communications (COMM)","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/A5067990418","display_name":"Radu Curpen","orcid":null},"institutions":[{"id":"https://openalex.org/I3123573182","display_name":"Transylvania University of Bra\u0219ov","ror":"https://ror.org/01cg9ws23","country_code":"RO","type":"education","lineage":["https://openalex.org/I3123573182"]}],"countries":["RO"],"is_corresponding":true,"raw_author_name":"Radu Curpen","raw_affiliation_strings":["Universitatea Transilvania din Brasov, Brasov, RO","Dept. of Electron. & Comput., Transilvania Univ. of Brasov, Brasov, Romania"],"affiliations":[{"raw_affiliation_string":"Universitatea Transilvania din Brasov, Brasov, RO","institution_ids":["https://openalex.org/I3123573182"]},{"raw_affiliation_string":"Dept. of Electron. & Comput., Transilvania Univ. of Brasov, Brasov, Romania","institution_ids":["https://openalex.org/I3123573182"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5050243416","display_name":"Titus B\u0103lan","orcid":"https://orcid.org/0000-0002-6839-9279"},"institutions":[{"id":"https://openalex.org/I3123573182","display_name":"Transylvania University of Bra\u0219ov","ror":"https://ror.org/01cg9ws23","country_code":"RO","type":"education","lineage":["https://openalex.org/I3123573182"]}],"countries":["RO"],"is_corresponding":false,"raw_author_name":"Titus Balan","raw_affiliation_strings":["Universitatea Transilvania din Brasov, Brasov, RO","Dept. of Electron. & Comput., Transilvania Univ. of Brasov, Brasov, Romania"],"affiliations":[{"raw_affiliation_string":"Universitatea Transilvania din Brasov, Brasov, RO","institution_ids":["https://openalex.org/I3123573182"]},{"raw_affiliation_string":"Dept. of Electron. & Comput., Transilvania Univ. of Brasov, Brasov, Romania","institution_ids":["https://openalex.org/I3123573182"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5038648315","display_name":"Florin Sandu","orcid":"https://orcid.org/0000-0003-0015-9153"},"institutions":[{"id":"https://openalex.org/I3123573182","display_name":"Transylvania University of Bra\u0219ov","ror":"https://ror.org/01cg9ws23","country_code":"RO","type":"education","lineage":["https://openalex.org/I3123573182"]}],"countries":["RO"],"is_corresponding":false,"raw_author_name":"Florin Sandu","raw_affiliation_strings":["Universitatea Transilvania din Brasov, Brasov, RO","Dept. of Electron. & Comput., Transilvania Univ. of Brasov, Brasov, Romania"],"affiliations":[{"raw_affiliation_string":"Universitatea Transilvania din Brasov, Brasov, RO","institution_ids":["https://openalex.org/I3123573182"]},{"raw_affiliation_string":"Dept. of Electron. & Comput., Transilvania Univ. of Brasov, Brasov, Romania","institution_ids":["https://openalex.org/I3123573182"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5111999631","display_name":"Cosmin Costache","orcid":null},"institutions":[{"id":"https://openalex.org/I3123573182","display_name":"Transylvania University of Bra\u0219ov","ror":"https://ror.org/01cg9ws23","country_code":"RO","type":"education","lineage":["https://openalex.org/I3123573182"]}],"countries":["RO"],"is_corresponding":false,"raw_author_name":"Cosmin Costache","raw_affiliation_strings":["Universitatea Transilvania din Brasov, Brasov, RO","Dept. of Electron. & Comput., Transilvania Univ. of Brasov, Brasov, Romania"],"affiliations":[{"raw_affiliation_string":"Universitatea Transilvania din Brasov, Brasov, RO","institution_ids":["https://openalex.org/I3123573182"]},{"raw_affiliation_string":"Dept. of Electron. & Comput., Transilvania Univ. of Brasov, Brasov, Romania","institution_ids":["https://openalex.org/I3123573182"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5009043721","display_name":"Calin Cerchez","orcid":null},"institutions":[{"id":"https://openalex.org/I4210095246","display_name":"Siemens (Romania)","ror":"https://ror.org/00sexkk33","country_code":"RO","type":"company","lineage":["https://openalex.org/I1325886976","https://openalex.org/I4210095246"]},{"id":"https://openalex.org/I1325886976","display_name":"Siemens (Germany)","ror":"https://ror.org/059mq0909","country_code":"DE","type":"company","lineage":["https://openalex.org/I1325886976"]}],"countries":["DE","RO"],"is_corresponding":false,"raw_author_name":"Calin Cerchez","raw_affiliation_strings":["Siemens Convergence Creators, Networks Department, Bra\u015fov, Romania","Networks Dept., Siemens Convergence Creators, Bras\u0327ov, Romania"],"affiliations":[{"raw_affiliation_string":"Siemens Convergence Creators, Networks Department, Bra\u015fov, Romania","institution_ids":["https://openalex.org/I4210095246"]},{"raw_affiliation_string":"Networks Dept., Siemens Convergence Creators, Bras\u0327ov, Romania","institution_ids":["https://openalex.org/I1325886976"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5067990418"],"corresponding_institution_ids":["https://openalex.org/I3123573182"],"apc_list":null,"apc_paid":null,"fwci":0.2093,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.57860371,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"4"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.8729000091552734,"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":0.8729000091552734,"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/T10575","display_name":"Wireless Communication Networks Research","score":0.7748000025749207,"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/T13905","display_name":"Telecommunications and Broadcasting Technologies","score":0.7315000295639038,"subfield":{"id":"https://openalex.org/subfields/2214","display_name":"Media Technology"},"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/computer-science","display_name":"Computer science","score":0.7429863214492798},{"id":"https://openalex.org/keywords/voice-communication","display_name":"Voice communication","score":0.6661547422409058},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.5662565231323242},{"id":"https://openalex.org/keywords/term","display_name":"Term (time)","score":0.5426010489463806},{"id":"https://openalex.org/keywords/service","display_name":"Service (business)","score":0.49422982335090637},{"id":"https://openalex.org/keywords/voice-over-ip","display_name":"Voice over IP","score":0.4863589406013489},{"id":"https://openalex.org/keywords/voice-activity-detection","display_name":"Voice activity detection","score":0.46772491931915283},{"id":"https://openalex.org/keywords/lte-advanced","display_name":"LTE Advanced","score":0.46610793471336365},{"id":"https://openalex.org/keywords/core","display_name":"Core (optical fiber)","score":0.4526670575141907},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.3288050889968872},{"id":"https://openalex.org/keywords/speech-processing","display_name":"Speech processing","score":0.18929368257522583},{"id":"https://openalex.org/keywords/speech-recognition","display_name":"Speech recognition","score":0.18128937482833862},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.17921358346939087},{"id":"https://openalex.org/keywords/world-wide-web","display_name":"World Wide Web","score":0.09996986389160156},{"id":"https://openalex.org/keywords/the-internet","display_name":"The Internet","score":0.08998781442642212}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7429863214492798},{"id":"https://openalex.org/C2983306500","wikidata":"https://www.wikidata.org/wiki/Q52946","display_name":"Voice communication","level":2,"score":0.6661547422409058},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.5662565231323242},{"id":"https://openalex.org/C61797465","wikidata":"https://www.wikidata.org/wiki/Q1188986","display_name":"Term (time)","level":2,"score":0.5426010489463806},{"id":"https://openalex.org/C2780378061","wikidata":"https://www.wikidata.org/wiki/Q25351891","display_name":"Service (business)","level":2,"score":0.49422982335090637},{"id":"https://openalex.org/C171246234","wikidata":"https://www.wikidata.org/wiki/Q81945","display_name":"Voice over IP","level":3,"score":0.4863589406013489},{"id":"https://openalex.org/C204201278","wikidata":"https://www.wikidata.org/wiki/Q1332614","display_name":"Voice activity detection","level":3,"score":0.46772491931915283},{"id":"https://openalex.org/C17652562","wikidata":"https://www.wikidata.org/wiki/Q1345402","display_name":"LTE Advanced","level":3,"score":0.46610793471336365},{"id":"https://openalex.org/C2164484","wikidata":"https://www.wikidata.org/wiki/Q5170150","display_name":"Core (optical fiber)","level":2,"score":0.4526670575141907},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.3288050889968872},{"id":"https://openalex.org/C61328038","wikidata":"https://www.wikidata.org/wiki/Q3358061","display_name":"Speech processing","level":2,"score":0.18929368257522583},{"id":"https://openalex.org/C28490314","wikidata":"https://www.wikidata.org/wiki/Q189436","display_name":"Speech recognition","level":1,"score":0.18128937482833862},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.17921358346939087},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.09996986389160156},{"id":"https://openalex.org/C110875604","wikidata":"https://www.wikidata.org/wiki/Q75","display_name":"The Internet","level":2,"score":0.08998781442642212},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"id":"https://openalex.org/C136264566","wikidata":"https://www.wikidata.org/wiki/Q159810","display_name":"Economy","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/iccomm.2014.6866763","is_oa":false,"landing_page_url":"https://doi.org/10.1109/iccomm.2014.6866763","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2014 10th International Conference on Communications (COMM)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/9","display_name":"Industry, innovation and infrastructure","score":0.4000000059604645}],"awards":[],"funders":[{"id":"https://openalex.org/F4320338080","display_name":"European Social Fund","ror":"https://ror.org/00k4n6c32"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":3,"referenced_works":["https://openalex.org/W2484659212","https://openalex.org/W2503688574","https://openalex.org/W2968879716"],"related_works":["https://openalex.org/W2356972668","https://openalex.org/W2001829201","https://openalex.org/W2085099879","https://openalex.org/W2592254292","https://openalex.org/W2471927483","https://openalex.org/W2151801143","https://openalex.org/W2164674456","https://openalex.org/W2097261252","https://openalex.org/W2489618349","https://openalex.org/W2264928512"],"abstract_inverted_index":{"The":[0,48],"mobile":[1],"technology":[2],"4G,":[3],"known":[4],"as":[5],"Long":[6],"Term":[7],"Evolution":[8],"(LTE),":[9],"offers":[10],"very":[11],"high":[12],"peak":[13],"data,":[14],"but,":[15],"since":[16],"it":[17],"was":[18],"designed":[19,127],"specifically":[20],"for":[21,88],"data":[22],"traffic,":[23],"voice":[24,34,38,71,90],"support":[25,35],"is":[26,32],"absent.":[27],"So":[28],"one":[29],"problematic":[30],"aspect":[31],"providing":[33,89],"or":[36],"having":[37],"continuity":[39],"when":[40],"the":[41,85,95,123],"user":[42],"moves":[43],"out":[44,108],"of":[45,98,109],"LTE":[46,57,135],"coverage.":[47],"most":[49],"feasible":[50],"solutions":[51,76,111],"are":[52,77,82],"CS":[53],"fallback,":[54],"Voice":[55,64],"over":[56,91],"via":[58],"Generic":[59],"Access":[60],"(VoLGA),":[61],"Single":[62],"Radio":[63],"Call":[65],"Continuity":[66],"(SRVCC)":[67],"and":[68,79,139],"third":[69],"party":[70],"service":[72],"like":[73],"Skype.":[74],"These":[75],"discussed":[78],"compared.":[80],"There":[81],"also":[83],"suggested":[84],"best":[86],"options":[87],"LTE,":[92],"depending":[93],"on":[94,132],"different":[96],"types":[97],"network":[99,136],"that":[100],"an":[101],"operator":[102],"has":[103],"already":[104],"deployed.":[105],"Since":[106],"2":[107],"4":[110],"described":[112],"in":[113,119],"this":[114],"paper":[115],"interact":[116],"with":[117],"IMS,":[118],"order":[120],"to":[121],"demonstrate":[122],"concepts,":[124],"we":[125],"have":[126],"a":[128],"testing":[129],"configuration,":[130],"based":[131],"our":[133],"own-developed":[134],"simulator,":[137],"4GSim":[138],"OpenIMS":[140],"Core.":[141]},"counts_by_year":[{"year":2014,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}