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Virtual queueing is commonly deployed as a buffering technique in high-performance input-queued switch architectures. This paper presents the analysis for discrete-time virtual output queued switches with incoming traffic governed by a uniformly distributed Markov modulated on/off process, and geometrically distributed service times. We utilize the k-step first-passage time probability matrix to derive the probability generating function of the inter-arrival times distribution. Based on the latter, closed-form expressions for the queue size distribution and mean delay are obtained. The validity of the analysis is established through computer simulations.
Communications, 2003. ICC '03. IEEE International Conference on (Volume:1 )
Date of Conference: 11-15 May 2003