Resource augmentation for fault-tolerance feasibility of real-time tasks under error bursts
Abhilash Thekkilakattil, Radu Dobrin, Sasikumar Punnekkat, Hüseyin Aysan · 2012
Dependability is a vital system requirement, particularly in safety critical and mission critical real-time systems, due to the potentially catastrophic consequences of failures. In most critical applications different fault tolerance mechanisms using redundancy are employed to prevent possible failures. In the case of real-time systems the system designer must ensure that the task set is feasible even under faults, which we refer to as 'fault tolerance feasibility'. Due to cost considerations, often temporal redundancy has been prevalently used to meet this objective.