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A centralized access control in fieldbus systems is characterized by the presence of a processing unit acting as link active scheduler (LAS), whose task is to manage the bandwidth, distributing it among all the producing devices, and respecting their time constraints. The bandwidth is distributed on the basis of a scheduling table containing transmission instants for the information produced by different...
Most of the IEEE 802.16e Mobile WiMAX scheduling proposals for real-time traffic using unsolicited grant service (UGS) focus on the throughput and the guaranteed latency. The delay variation or delay jitter and the effect of burst overhead have not yet been investigated. This paper introduces a new technique called swapping min-max (SWIM) for UGS scheduling that not only meets the delay constraint...
Managed languages such as Java and C# are increasingly being considered for hard real-time applications because of their productivity and software engineering advantages. Automatic memory management, or garbage collection, is a key enabler for robust, reusable libraries, yet remains a challenge for analysis and implementation of real-time execution environments. This paper comprehensively compares...
The Concurrent Real-Time Tasks (TTRC), carry out all the activities of a System in Real-Time (STR); the Scheduler of Concurrent Real-Time Tasks (PTTRC) is the responsible of selecting the Real Time Task and the moment that it will take the resources, (PTTRC) is an algorithm that assigns the resources from the processor to different tasks in different moments. However, is necessary to verify effectiveness...
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