Effective bandwidths: Call admission, traffic policing and filtering for ATM networks

In this paper we review and extend the e ective bandwidth results of Kelly [28], and Kesidis, Walrand and Chang [29, 6]. These results provide a framework for call admission schemes which are sensitive to constraints on the mean delay or the tail distribution of the workload in bu ered queues. We present results which are valid for a wide variety of tra c streams and discuss their applicability for tra c management in ATM networks. We discuss the impact of tra c policing schemes, such as thresholding and ltering, on the e ective bandwidth of sources. Finally we discuss e ective bandwidth results for Brownian tra c models for which explicit results reveal the interaction arising in nite bu ers. Short title: E ective Bandwidths