Link capacity allocation and network control by filtered input rate in high speed networks

Studies link capacity allocation for a finite buffer system to transmit multimedia traffic. The queueing process is simulated with real video traffic. Two key concepts are explored. First, input traffic in the low frequency band stays intact as it travels through a finite-buffer zero-loss system. Second, the link capacity requirement at each node is essentially captured by its low frequency input traffic (filtered at a properly selected cut-off frequency). Hence, one may overlook the queueing process at each node for network-wide traffic flow in the low frequency band. The authors propose a simple, effective method for link capacity allocation and network control using on-line observation of traffic flow in the low frequency band. The experimental study points out a possible new direction for control of high speed networks