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Performance analysis of a packet-switched synchronous voice/data transmission system

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3 Author(s)
Jun Kyun Choi ; ISDN Cev. Dept., Electron. & Telecommun. Res. Inst., Daejon, South Korea ; Jung Uck Seo ; Chong Kwan Un

The queuing behavior of voice and data traffic for a proposed voice/data multiplexing system is investigated. For synchronization of packetized voice in the packet-switched network, the master frame format of time-division multiplexing (TDM) is utilized. This scheme has discrete delay characteristics for packetized voice and provides a simple play-out method for voice signals. The performance of voice and data traffic is investigated by obtaining the cumulative distribution of delay of voice packets and the mean delay time of voice and data packets. The performances of the proposed system and the circuit-switched system are compared to time-assignment speech interpolation (TASI) in terms of the loss probability of voice traffic and the maximum allowable number of input voice channels for a given trunk capacity. The proposed system has been found to be more efficient than the circuit-switched system with TASI for integrating multiple voice channels in a single link. For a given trunk capacity, the system can accommodate about twice the number of input voice channels as the circuit-switched system

Published in:

IEEE Transactions on Communications  (Volume:38 ,  Issue: 9 )