Aplicación de redes de Petri a la evaluación de desempeño de sistemas de comunicaciones

Abstract

Performance evaluation of communications systems is usually doneby analytical tecniques or simulation. The analytical approach is normally based on a probobalistic description of the system operations in terms of Markovian process or queuing systems, but only directly applicable for simple systems, or simplistic models of complex systems. Simulations is a powerful tool but requires enormous computations to yield accurate performance estimators. In this paper we present an alternative technique: Petri Nets, a graphical and mathematical modeling tool applicable to many systems. We used stochastic Petri nets to model and evaluate queuing systems and some protocols. Simple ans accurate models were developed