LINK CAPACITY ALLOCATION AND NETWORK CONTROL BY FILTERED INPUT RATE IN HIGH-SPEED NETWORKS

We study link capacity allocation for a finite buffer system to transm it multimedia traffic. The queueing process is simulated with real vid eo traffic. Two key concepts are eplored in this study. First, the lin k capacity requirement at each node is essentially captured by its low -frequency input traffic (filtered at a properly selected cut-off freq uency). Second, the low-frequency traffic stays intact as it travels t hrough a finite-buffer system without significant loss. Hence, one may overlook the queueing process at each node for network-wide traffic f low in the low-frequency band. We propose a simple, effective method f or link capacity allocation and network control using on-line observat ion of traffic flow in the low-frequency band. The study explores a ne w direction for measurement-based traffic control in high-speed networ ks.