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010   $a3-319-02102-8
024 7 $a10.1007/978-3-319-02102-7
035   $a(CKB)3710000000074691
035   $a(EBL)1593056
035   $a(OCoLC)871857836
035   $a(SSID)ssj0001067021
035   $a(PQKBManifestationID)11669562
035   $a(PQKBTitleCode)TC0001067021
035   $a(PQKBWorkID)11079809
035   $a(PQKB)11439476
035   $a(MiAaPQ)EBC1593056
035   $a(DE-He213)978-3-319-02102-7
035   $a(PPN)176105468
035   $a(EXLCZ)993710000000074691
100   $a20131120d2014      u|         0
101 0 $aeng
135   $aur|n|---|||||
181   $ctxt
182   $cc
183   $acr
200 10$aManagement of Speech and Video Telephony Quality in Heterogeneous Wireless Networks /$fby B?a?ej Lewcio
205   $a1st ed. 2014.
210  1$aCham :$cSpringer International Publishing :$cImprint: Springer,$d2014.
215   $a1 online resource (161 p.)
225 1 $aT-Labs Series in Telecommunication Services,$x2192-2810
300   $aDescription based upon print version of record.
311   $a3-319-02101-X 
327   $aIntroduction -- Experience of wireless telephony -- Heterogeneous testbed -- Experience of speech telephony -- Experience of video telephony -- Conclusions.
330   $aThis book shows how networking research and quality engineering can be combined to successfully manage the transmission quality when speech and video telephony is delivered in heterogeneous wireless networks. Nomadic use of services requires intelligent management of ongoing transmission, and to make the best of available resources many fundamental trade-offs must be considered. Network coverage versus throughput and reliability of a connection is one key aspect, efficiency versus robustness of signal compression is another. However, to successfully manage services, user-perceived Quality of Experience (QoE) in heterogeneous networks must be known, and the perception of quality changes must be understood.  These issues are addressed in this book, in particular focusing on the perception of quality changes due to switching between diverse networks, speech and video codecs, and encoding bit rates during active calls.
410  0$aT-Labs Series in Telecommunication Services,$x2192-2810
606   $aElectrical engineering
606   $aApplication software
606   $aSignal processing
606   $aImage processing
606   $aSpeech processing systems
606   $aCommunications Engineering, Networks$3https://scigraph.springernature.com/ontologies/product-market-codes/T24035
606   $aInformation Systems Applications (incl. Internet)$3https://scigraph.springernature.com/ontologies/product-market-codes/I18040
606   $aSignal, Image and Speech Processing$3https://scigraph.springernature.com/ontologies/product-market-codes/T24051
615  0$aElectrical engineering.
615  0$aApplication software.
615  0$aSignal processing.
615  0$aImage processing.
615  0$aSpeech processing systems.
615 14$aCommunications Engineering, Networks.
615 24$aInformation Systems Applications (incl. Internet).
615 24$aSignal, Image and Speech Processing.
676   $a621.385
700   $aLewcio$b B?a?ej$4aut$4http://id.loc.gov/vocabulary/relators/aut$0873970
906   $aBOOK
912   $a9910299497203321
996   $aManagement of Speech and Video Telephony Quality in Heterogeneous Wireless Networks$91951246
997   $aUNINA