Pregled bibliografske jedinice broj: 180941
VoIP QoS on low speed links
VoIP QoS on low speed links // Proceedings SoftCOM 2004 / Rožić, Nikola ; Begušić, Dinko (ur.).
Split: Fakultet elektrotehnike, strojarstva i brodogradnje Sveučilišta u Splitu, 2004. str. 269-273 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
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Naslov
VoIP QoS on low speed links
Autori
Pezelj, Ivana ; Ožegović, Julije ; Hrboka, Ljubomir
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
Proceedings SoftCOM 2004
/ Rožić, Nikola ; Begušić, Dinko - Split : Fakultet elektrotehnike, strojarstva i brodogradnje Sveučilišta u Splitu, 2004, 269-273
Skup
12. International Conference on Software, Telecommunications and Computer Networks
Mjesto i datum
Venecija, Italija; Dubrovnik, Hrvatska; Split, Hrvatska, 10.10.2004. - 13.10.2004
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
QoS; VoIP; Internet
Sažetak
Quality of Service providing in Internet-like computer networks has been tested for low-speed links and VoIP service in the operational CARNet network. QoS techniques, traffic selection and prioritization were deployed and tested for three voice codecs G.711, G.728, and G.723.1, and for four low-speed links of 56, 64 and 128 kbps and 2 Mbps. VoIP QoS in presence of TCP and UDP traffic was acceptable at 2 Mbps only. With VoIP traffic only, low speed codecs performed well on 56-128 kbps links. G.723.1 at 5.3 kbps has shown very good results. Main reason for lower VoIP QoS was IP packet delay variation. Results of Mean Opinion Score and subjective quality estimated through E-model from packet QoS parameters were comparable. This approach can be used as a model for any service quality testing.
Izvorni jezik
Engleski
Znanstvena područja
Elektrotehnika
