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We consider reflected jump-diffusions in the orthant R + with timeand state-dependent drift, diffusion and jump-amplitude coefficients. Directions of reflection upon hitting boundary faces are also allow to depend on time and state. Pathwise comparison results for this class of processes are provided, as well as absolute continuity properties for their… (More)

- Francisco J. Piera, Patricio Parada
- ArXiv
- 2007

We consider a general stochastic input-output dynamical system with output evolving in time as the solution to a functional coefficients, Itô’s stochastic differential equation, excited by an input process. This general class of stochastic systems encompasses not only the classical communication channel models, but also a wide variety of engineering systems… (More)

- Francisco J. Piera, Patricio Parada
- Probl. Inf. Transm.
- 2009

Convergence properties of Shannon Entropy are studied. In the differential setting, it is shown that weak convergence of probability measures, or convergence in distribution, is not enough for convergence of the associated differential entropies. A general result for the desired differential entropy convergence is provided, taking into account both… (More)

In this paper we study the stationary distributions for reflected diffusions with jumps in the positive orthant. Under the assumption that the stationary distribution possesses a density in R+ that satisfies certain finiteness conditions, we characterize the Fokker-Planck equation. We then provide necessary and sufficient conditions for the existence of a… (More)

In this paper we study the boundary characteristics of reflected diffusions with jumps in the positive orthant. We consider a model with oblique reflections and study the reflection map in terms of the local time at the boundary (or reflection) faces of R+. In particular, we show that these last processes coincide (up to a multiplicative constant) and that… (More)

- Francisco J. Piera, Ravi Mazumdar, Fabrice Guillemin
- Queueing Syst.
- 2008

- Jean-Paul Haddad, Ravi Mazumdar, Francisco J. Piera
- Queueing Syst.
- 2010

We prove some new pathwise comparison results for single class stochastic fluid networks. Under fairly general conditions, monotonicity with respect to the (stateand time-dependent) routing matrices is shown. Under more restrictive assumptions, monotonicity with respect to the service rates is shown as well. We conclude by using the comparison results to… (More)

- Leszek Szczecinski, Francisco J. Piera
- VTC Spring
- 2002

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