An analysis of statistical multiplexing in an ATM transport network

The traffic characteristics of an ATM network are analyzed by theoretical methods. A new method is proposed to express the burstiness of the cell arrival process. Both statistical multiplexing and statistical bandwidth allocation are quantitatively evaluated. When packetized video and voice traffic are multiplexed, the number of multiplexable sources, and statistical bandwidth allocation is ineffective without control. On the other hand, lowering the peak bit rate of video traffic effectively improves bandwidth utilization. When transmission efficiency is low, burstiness is not reduced through the nodes. [In Japanese.]