García Mora, María Belén; Santamaria Navarro, Cristina; Rubio Navarro, Gregorio(MDPI AG, 2020-12)
[EN] Stochastic processes are useful and important for modeling the evolution of processes that take different states over time, a situation frequently found in fields such as medical research and engineering. In a previous ...
García Mora, María Belén; Santamaría Navarro, Cristina; Rubio Navarro, Gregorio; Pontones Moreno, José Luis(Taylor & Francis, 2014-02-01)
The study of the sum of two independent phase-type (PH)-distributed variables, each of them being asso- ciated with a Markovian process with one absorbing state, is considered in this paper. The distribution function of ...
[EN] In this work it is considered a circular Wireless Sensor Networks (WSN) in a planar structure with uniform distribution of the sensors and with a two-level hierarchical topology. At the lower level, a cluster configuration ...
Wang, Shuang; Li, Xiaoping; Ruiz García, Rubén(Institute of Electrical and Electronics Engineers, 2020-04-01)
[EN] In this article, we consider the problem of selecting appropriate heterogeneous servers in cloud centers for stochastically arriving requests in order to obtain an optimal tradeoff between the expected response time ...
[EN] Classical Markov models are defined through a stochastic transition matrix, i.e., a matrix whose columns (or rows) are deterministic values representing transition probabilities. However, in practice these quantities ...