Hardware Fuzzy Scheduler for Real-Time Independent Tasks

Author:

Slimani Khaled1ORCID,Hadaoui Rebiha1,Lalam Mustapha1

Affiliation:

1. Laboratoire de Recherche en Informatique (LARI), Faculté de Génie Electrique et Informatique, Université Mouloud Mammeri de Tizi-Ouzou, B.P. 17 RP, 15000 Tizi-Ouzou, Algeria

Abstract

Several scheduling algorithms that have been proposed for Real-Time Operating System (RTOS) are supposed to be optimal. However, optimal scheduling is only theoretical due to the possibility of system overload where it cannot meet the deadlines of tasks. Besides, these algorithms are implemented in the RTOS, which generates additional overheads that can lead to the “nonscheduling” of certain independent tasks. In this paper, we propose an original solution for nonschedulable independent tasks in embedded systems. This solution, named Hybrid Fuzzy Earliest Deadline First Scheduling algorithm (HFEDFS), is based on the Earliest Deadline First algorithm (EDF) and Fuzzy Logic. It is characterized by a rejection policy and a rescheduling mechanism. The experimental results show that our proposed algorithm improves the system’s performance. To reduce extra overheads of RTOS, this algorithm is implemented on a Field-Programmable Gate Array (FPGA) circuit (Xilinx Virtex-5 LX50T-1156 board from DIGILENT).

Publisher

World Scientific Pub Co Pte Ltd

Subject

Electrical and Electronic Engineering,Hardware and Architecture,Electrical and Electronic Engineering,Hardware and Architecture

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. A New FPGA-Based Task Scheduler for Real-Time Systems;Electronics;2023-04-15

2. Scheduling Periodic Real-Time Tasks with Inter-Task Synchronisation;2022 11th Mediterranean Conference on Embedded Computing (MECO);2022-06-07

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