{"id":"https://openalex.org/W2545119649","doi":"https://doi.org/10.1109/icmwcn.2007.4668187","title":"Time-varying quality estimation for VoIP over Wireless Networks","display_name":"Time-varying quality estimation for VoIP over Wireless Networks","publication_year":2007,"publication_date":"2007-09-01","ids":{"openalex":"https://openalex.org/W2545119649","doi":"https://doi.org/10.1109/icmwcn.2007.4668187","mag":"2545119649"},"language":"en","primary_location":{"id":"doi:10.1109/icmwcn.2007.4668187","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icmwcn.2007.4668187","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2007 9th IFIP International Conference on Mobile Wireless Communications Networks","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/A5029008954","display_name":"Dorel Picovici","orcid":null},"institutions":[{"id":"https://openalex.org/I230495080","display_name":"University of Limerick","ror":"https://ror.org/00a0n9e72","country_code":"IE","type":"education","lineage":["https://openalex.org/I230495080"]}],"countries":["IE"],"is_corresponding":false,"raw_author_name":"Dorel Picovici","raw_affiliation_strings":["Department of Electronic and Computer Engineering, University of Limerick, Ireland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electronic and Computer Engineering, University of Limerick, Ireland","institution_ids":["https://openalex.org/I230495080"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5064832796","display_name":"J. Stuart Nelson","orcid":"https://orcid.org/0000-0002-2697-9152"},"institutions":[{"id":"https://openalex.org/I230495080","display_name":"University of Limerick","ror":"https://ror.org/00a0n9e72","country_code":"IE","type":"education","lineage":["https://openalex.org/I230495080"]}],"countries":["IE"],"is_corresponding":false,"raw_author_name":"John Nelson","raw_affiliation_strings":["Department of Electronic and Computer Engineering, University of Limerick, Ireland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electronic and Computer Engineering, University of Limerick, Ireland","institution_ids":["https://openalex.org/I230495080"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.37608595,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"91","last_page":"95"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11158","display_name":"Wireless Networks and Protocols","score":0.9987000226974487,"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/T11158","display_name":"Wireless Networks and Protocols","score":0.9987000226974487,"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":0.9911999702453613,"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/T11409","display_name":"Advanced Wireless Network Optimization","score":0.9909999966621399,"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/pesq","display_name":"PESQ","score":0.9331759810447693},{"id":"https://openalex.org/keywords/voice-over-ip","display_name":"Voice over IP","score":0.8524274230003357},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8207966685295105},{"id":"https://openalex.org/keywords/packet-loss","display_name":"Packet loss","score":0.6771027445793152},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.610520601272583},{"id":"https://openalex.org/keywords/network-packet","display_name":"Network packet","score":0.5799880623817444},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.5486531853675842},{"id":"https://openalex.org/keywords/wireless-network","display_name":"Wireless network","score":0.5008084774017334},{"id":"https://openalex.org/keywords/quality-of-service","display_name":"Quality of service","score":0.43042251467704773},{"id":"https://openalex.org/keywords/transmission","display_name":"Transmission (telecommunications)","score":0.41047054529190063},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.4052034616470337},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.22431951761245728},{"id":"https://openalex.org/keywords/speech-enhancement","display_name":"Speech enhancement","score":0.1352541744709015}],"concepts":[{"id":"https://openalex.org/C103734657","wikidata":"https://www.wikidata.org/wiki/Q2739975","display_name":"PESQ","level":4,"score":0.9331759810447693},{"id":"https://openalex.org/C171246234","wikidata":"https://www.wikidata.org/wiki/Q81945","display_name":"Voice over IP","level":3,"score":0.8524274230003357},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8207966685295105},{"id":"https://openalex.org/C54108766","wikidata":"https://www.wikidata.org/wiki/Q391064","display_name":"Packet loss","level":3,"score":0.6771027445793152},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.610520601272583},{"id":"https://openalex.org/C158379750","wikidata":"https://www.wikidata.org/wiki/Q214111","display_name":"Network packet","level":2,"score":0.5799880623817444},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.5486531853675842},{"id":"https://openalex.org/C108037233","wikidata":"https://www.wikidata.org/wiki/Q11375","display_name":"Wireless network","level":3,"score":0.5008084774017334},{"id":"https://openalex.org/C5119721","wikidata":"https://www.wikidata.org/wiki/Q220501","display_name":"Quality of service","level":2,"score":0.43042251467704773},{"id":"https://openalex.org/C761482","wikidata":"https://www.wikidata.org/wiki/Q118093","display_name":"Transmission (telecommunications)","level":2,"score":0.41047054529190063},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.4052034616470337},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.22431951761245728},{"id":"https://openalex.org/C2776182073","wikidata":"https://www.wikidata.org/wiki/Q7575395","display_name":"Speech enhancement","level":3,"score":0.1352541744709015},{"id":"https://openalex.org/C100675267","wikidata":"https://www.wikidata.org/wiki/Q1371624","display_name":"Background noise","level":2,"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},{"id":"https://openalex.org/C110875604","wikidata":"https://www.wikidata.org/wiki/Q75","display_name":"The Internet","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icmwcn.2007.4668187","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icmwcn.2007.4668187","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2007 9th IFIP International Conference on Mobile Wireless Communications Networks","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7","score":0.46000000834465027}],"awards":[],"funders":[{"id":"https://openalex.org/F4320320847","display_name":"Science Foundation Ireland","ror":"https://ror.org/0271asj38"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":8,"referenced_works":["https://openalex.org/W596247663","https://openalex.org/W633611818","https://openalex.org/W1452686989","https://openalex.org/W1972005738","https://openalex.org/W2123666832","https://openalex.org/W2152474465","https://openalex.org/W6628431355","https://openalex.org/W6643222147"],"related_works":["https://openalex.org/W2096515400","https://openalex.org/W2074532070","https://openalex.org/W761038755","https://openalex.org/W2599327517","https://openalex.org/W2385858042","https://openalex.org/W2058117761","https://openalex.org/W4245368662","https://openalex.org/W2105955543","https://openalex.org/W2319456540","https://openalex.org/W2105499319"],"abstract_inverted_index":{"Time-varying":[0],"distortions":[1,19,26],"are":[2,20,32],"perceived":[3],"as":[4],"being":[5],"different":[6],"from":[7],"stationary":[8],"distortions.":[9,72],"In":[10],"terms":[11],"of":[12,68],"wireless":[13,80],"networks":[14,81],"the":[15,28,36,56,65,69,84,88,96],"most":[16],"possible":[17],"time-varying":[18,48],"based":[21],"on":[22],"packet":[23,70],"loss.":[24],"Such":[25],"degrade":[27],"VoIP":[29,49,76],"quality":[30,50],"and":[31,92],"directly":[33],"linked":[34],"to":[35,62],"packet-based":[37],"transmission":[38],"techniques.":[39],"This":[40],"paper":[41],"proposes":[42],"a":[43],"new":[44],"mathematical":[45],"model":[46,53,86],"for":[47,64,75,95],"estimation.":[51],"The":[52],"is":[54],"extending":[55],"ITU-T":[57,89,93],"legacy":[58,90],"E-model":[59,91],"in":[60],"order":[61],"count":[63],"perceptual":[66],"relevance":[67],"loss":[71],"Evaluation":[73],"results":[74],"over":[77],"IEEE":[78],"802.11":[79],"indicate":[82],"that":[83],"proposed":[85],"outperforms":[87],"PESQ":[94],"investigated":[97],"testing":[98],"conditions.":[99]},"counts_by_year":[{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}