Youssef Qaraai

  • Citations Per Year
Learn More
In this work we deal with the topology adapted to routing in delays tolerant networks (DTN). This topology plays a very important role in the design and implementation of routing protocols in this network deprived of any infrastructure and centralized administration with intermittent connectivity. In fact, we propose a DTN routing hierarchical topology(More)
Systems analysis concerns a set of concepts which lead to a better understanding of systems and their evolution. This allows more convenient controls to achieve any objective. In the case of distributed parameter systems, in which the space variable plays an important role, there is a wide literature on controllability, observability, stability,(More)
We present an extension of the protector control scheme introduced for the linear case in a previous work to a class of nonlinear systems. The systems considered are assumed to have a finite propagation velocity while the initial state is subject to a spreading disturbance. We characterize such a control first by using the remediability approach to the(More)
The delay tolerant networks (DTN), which form the mobile and wireless ad hoc networks, are characterized by intermittent connectivity, asymmetric flow, high error rate and long or variable delivery time, especially when the destination is not in the same area as the source. The purpose of this paper is to compare two categories (flooding strategy and(More)
  • 1