Abstract
In this paper, we present a fully distributed model-based call admission control (CAC) scheme for IEEE 802.11 multihop ad hoc networks. The scheme predicts the resources that a new call will consume by using both source traffic modeling and link-layer channel modeling, and hence guarantees sufficient network resources for the calls in service. Unlike most of the model-based CAC schemes in the literature, our CAC offers stochastic delay guarantees instead of average delay guarantees for multihop multimedia connections, based on the effective bandwidth theory and its dual effective capacity concept. Simulation results show that our scheme combines both efficient resource utilization and delay guarantees to a certain probabilistic limit.
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