Performance analysis for multiplexed voice traffic in 3G wireless networks

Packet loss performance in telecommunication networks has usually been represented by its expected value. Such characterization fails to set a quantitative assessment for the impact of packet loss on the session or connection quality and, hence, customer satisfaction. With packet traffic dominating future wireless networks, UMTS recommendations have defined a robust packet loss metric that evaluates the call performance. A user is satisfied if the percentage of packets lost from within his call does not exceed a defined threshold and the loss period does not persist longer than a given interval. We derive the satisfied-user probability for N-multiplexed voice calls in a 3G network assuming the first criterion. We compare the analytical results with simulations to demonstrate the accuracy of the technique proposed.

[1]  C. Weinstein,et al.  Fractional Speech Loss and Talker Activity Model for TASI and for Packet-Switched Speech , 1978, IEEE Trans. Commun..

[2]  San-Qi Li.  A New Performance Measurement for Voice Transmission in Burst and Packet Switching , 1987, IEEE Trans. Commun..

[3]  D. Everitt,et al.  On the teletraffic capacity of CDMA cellular networks , 1999 .

[4]  Andrew J. Viterbi,et al.  On the capacity of a cellular CDMA system , 1991 .

[5]  Evangelos Zervas,et al.  Packet dropping analysis for reservation voice TDMA systems , 1999 .

[6]  E. Gilbert.  Capacity of a burst-noise channel , 1960 .

[7]  F. Barcelo,et al.  PRMA performance evaluation based on queueing theory , 1997, 1997 IEEE International Conference on Personal Wireless Communications (Cat. No.97TH8338).

[8]  On-Ching Yue.  Achievable multiplexing gains for wireless PCS with packetized speech , 1994, 1994 IEEE GLOBECOM. Communications: The Global Bridge.

[9]  D. Zeghlache,et al.  Capacity evaluation of the UTRA WCDMA interface , 1999, Gateway to 21st Century Communications Village. VTC 1999-Fall. IEEE VTS 50th Vehicular Technology Conference (Cat. No.99CH36324).

[10]  Egon Schulz,et al.  On the capacity of a UTRA-TDD network with multiple services , 2002, 2002 IEEE International Conference on Communications. Conference Proceedings. ICC 2002 (Cat. No.02CH37333).