F. Rodríguez

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In modern computers, memory hierarchies play a paramount role in improving the average execution time. However, this fact is not so important in realtime systems, where the worst-case execution time is what matters the most. System designers must use complex analyses to guarantee that all tasks meet their deadlines. As an alternative to making those complex(More)
Locking caches are a useful alternative to standard cache memories in order to reach both predictability and high performance for multitasking, preemptive, fixedpriority real-time systems. Two schemes of locking cache are possible: static and dynamic use. Both schemas present a high degree of predictability and like-cache performance. But these two schemes(More)
In this paper, a CAN-based communication system has been used to transmit data between different kinds of sensors and the drive control of an electrical vehicle. Software-based earliest deadline first (EDF) scheduling has been applied to order the data, making possible that more relevant measures meet with their delivery time and, discarding, if necessary,(More)
Modern distributed industrial control systems need improvements in their dependability. In this paper we study different fault tolerant architectures for the nodes of these systems and present three different alternatives in order to develop fault tolerant nodes. Also, in order to evaluate their dependability we present theoretical models of each one, based(More)
Broadband satellite will play an important role to provide universal broadband access for the users. In order to lower the cost, the next-generation satellite systems should support IPv6 and seamlessly integrate with terrestrial networks, including wireless local loops. Based on the studies on the requirements and design constraints, in this paper, a novel(More)
Next-generation broadband satellite systems will have the capability to provide costeffective universal broadband access for the users. In order to meet users’ requirements on high quality multimedia services, many enhancements have to be made on the existing satellite technologies. One of the promising methods is the introduction of cross-layer design.(More)
This paper explain the application of hardware-software co-design methodology to the distribution of the controller task between the processors of a electronic control systems for a multilevel power converter, in order to increase the controller reliability. This framework operates with a component library that provides multiple alternatives for a given(More)
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