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Stochastic colored Petri net models for rainbow optical networks.

Franceschinis, G.; Fumagalli, A.; Silinguelli, A.

In: Billington, J.; Diaz, M.; Rozenberg, G.: Lecture Notes in Computer Science, Vol. 1605: Application of Petri Nets to Communication Networks, pages 273-303. Springer-Verlag, 1999.

Abstract: In this paper, stochastic well-formed nets (SWNs) are used to model an optical multi-receiver system and study its performance. A novel approach to resolving packet contention (loss), occurring in optical multi-receiver nodes when the number of packets concurrently reaching the mode exceeds the number of available receiver, is presented; it is based on the combined use of the fiber delay linear and photonic switches, to temporarily store (delay) optical packets prior to reception. In order to effectively delay the contending packets and improve the multi-receiver throughput, three novel control strategies are presented and their performance analyzed using SWN models. Techniques specific to this formalism are applied to cope with the state space explosion problem. A further optimization is achieved by altering the models in such a way that exact performance results can be obtained with reduced computational complexity.

Keywords: performance evaluation, rainbow optical networks, well-formed Petri nets.

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