Author/Authors :
MIŠUTH, Tibor Slovak University of Technology in Bratislava - Institute of Telecommunications, Faculty of Electrical Engineering and Information Technology, Slovakia , BAROŇÁK, Ivan Slovak University of Technology in Bratislava - Institute of Telecommunications, Faculty of Electrical Engineering and Information Technology, Slovakia
Abstract :
The paper presents an approach to packet loss probability estimation in modern VoIP networks. Our proposal is based on statistical characteristics of telecommunication networks and VoIp traffic packet flows. We adapted simple Erlang B model that is widely used for classic telecommunication networks dimensioning and analyze its potential applicability to modern convergent IP networks. Furthermore we derived M/G/1/K model of aggregated data flow to study influence of queue size on packet loss probability. At last we verified the model outcome and applicability using extensive simulations using NS2 software
Keywords :
Erlang B , Packet Loss , Quality of Service , Voice over IP
