03644nam 22006735 450 991029949720332120200706024222.03-319-02102-810.1007/978-3-319-02102-7(CKB)3710000000074691(EBL)1593056(OCoLC)871857836(SSID)ssj0001067021(PQKBManifestationID)11669562(PQKBTitleCode)TC0001067021(PQKBWorkID)11079809(PQKB)11439476(MiAaPQ)EBC1593056(DE-He213)978-3-319-02102-7(PPN)176105468(EXLCZ)99371000000007469120131120d2014 u| 0engur|n|---|||||txtccrManagement of Speech and Video Telephony Quality in Heterogeneous Wireless Networks /by Błażej Lewcio1st ed. 2014.Cham :Springer International Publishing :Imprint: Springer,2014.1 online resource (161 p.)T-Labs Series in Telecommunication Services,2192-2810Description based upon print version of record.3-319-02101-X Introduction -- Experience of wireless telephony -- Heterogeneous testbed -- Experience of speech telephony -- Experience of video telephony -- Conclusions.This book shows how networking research and quality engineering can be combined to successfully manage the transmission quality when speech and video telephony is delivered in heterogeneous wireless networks. Nomadic use of services requires intelligent management of ongoing transmission, and to make the best of available resources many fundamental trade-offs must be considered. Network coverage versus throughput and reliability of a connection is one key aspect, efficiency versus robustness of signal compression is another. However, to successfully manage services, user-perceived Quality of Experience (QoE) in heterogeneous networks must be known, and the perception of quality changes must be understood.  These issues are addressed in this book, in particular focusing on the perception of quality changes due to switching between diverse networks, speech and video codecs, and encoding bit rates during active calls.T-Labs Series in Telecommunication Services,2192-2810Electrical engineeringApplication softwareSignal processingImage processingSpeech processing systemsCommunications Engineering, Networkshttps://scigraph.springernature.com/ontologies/product-market-codes/T24035Information Systems Applications (incl. Internet)https://scigraph.springernature.com/ontologies/product-market-codes/I18040Signal, Image and Speech Processinghttps://scigraph.springernature.com/ontologies/product-market-codes/T24051Electrical engineering.Application software.Signal processing.Image processing.Speech processing systems.Communications Engineering, Networks.Information Systems Applications (incl. Internet).Signal, Image and Speech Processing.621.385Lewcio Błażejauthttp://id.loc.gov/vocabulary/relators/aut873970BOOK9910299497203321Management of Speech and Video Telephony Quality in Heterogeneous Wireless Networks1951246UNINA