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The development of broadband transmission and ATM switching technologies opens up an opportunity for providing high bit-rate multipoint and multimedia services such as video conferencing. Also, wireless communication has the inherent advantage of multicast transmission and may be used for multipoint information services. We consider multicast packet(More)
In this paper, we examine the fundamental relationship among quality of service, connection cost and traac smoothing in VBR video transmissions. In particular, we discuss how traac smoothing can help improving the quality of service and(or) reducing the network cost for a VBR video session. For this purpose, we present an eeective and eecient traac(More)
We describe a multilayer connection control architecture for broadband communications. A graph framework is introduced to describe network layers of network design, path configurations, dynamic call routing, burst switching, and ATM cell switching. These hierarchical layers of switching are performed at decreasing time scales, respectively. Switching at the(More)
Due to the inherent burstiness in variable bit rate (VBR) videos, traffic smoothing is often necessary to improve network utilization and reduce connection costs in VBR video transmission. In order to measure the effectiveness of smoothing methods, it is essential that smoothness criteria be first defined on the smoothing output traffic. In this paper, we(More)