This paper focuses on an upper bound for the probability of cell loss of bursty sources in broadband integrated packet networks based on asynchronous transfer mode.We develop a performance model to obtain this upper bound for traffic sources admitted into the system in connection-oriented services.This bound is derived by considering only the activity period of the different classes of traffic sources characterized by the same average rates,peak rates and burst lengths.This bound can facilitate the problem of traffic management for bursty sources by developing robust resource allocation strategies which are also implementation-wise not complex.Specifically,based on this upper bound we can evaluate the required bandwidth for a desired cell loss rate,and provide procedures for call admission and proactive congestion control at the access nodes of the network.We will also present a simulation model and results for a number of cases and verify the tighmess of this bound specially for moderate cell loss rates.Using the simulation model,we derive the state probability distribution of the number of cells in the buffer and demonstrate the effect of each traffic parameter on the probability of cell loss.
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