Naslov
Relevant parameters analysis of the VoIP traffic end-to-end delay

Autori
Dlaka, Damir ; Kapov, Milutin

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the 12th International Conference on Software, Telecommunications and Computer Networks (SoftCOM'04). / Rožić, Nikola ; Begušić, Dinko - Split : Fakultet elektrotehnike, strojarstva i brodogradnje Sveučilišta u Splitu, 2004, 397-400

Skup
12th International Conference on Software, Telecommunications and Computer Networks (SoftCOM'04).

Mjesto i datum
Dubrovnik, Hrvatska; Split, Hrvatska; Venecija, Italija, 10.10.2004. - 13.10.2004

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
IP telephony; VoIP; end-to-end delay

Sažetak
IP telephony represents voice transfer over packet IP network in real time. Today, VoIP service has taken a big sway. According to many current news, in the near future, VoIP will overcome amount of voice traffic achieved on PSTN networks.In order to make the VoIP service acceptable for the majority of users a satisfactory level of quality must be achieved. It depends on delay, delay variation, packet loss, totally capacity on link and echo [7], when talking about mixed IP/PSTN network. In this paper, all delay components and delay variation are described in detail. Formula for the analysis of influence of remained data packet size m, in the buffer in front of the voice packet is proposed. Also, formula for analysis of influence of number of buffers k in which the voice packet must wait behind predefined remained size of data packet m in buffer is proposed. Iterative analysis of these two parameters, m and k, provides a detail insight of influence of data traffic on total end to end delay of IP telephony traffic, as well as the insight of the quality of service level of transferred voice traffic over IP network. Also, it is possible to find optimal values of parameters m and k for which overall delay is within allowed limits defined by ITU-T G.114 [14] standard. For future work, it will be interesting to see how to find/select parameters m, k and z to meet end-to-end delay requirements for different applications and how those parameters affect end-to-end delay.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

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