Ejlali, Alireza, Schmitz, Marcus, Al-Hashimi, Bashir M, Miremadi, Seyed Ghassem and Rosinger, Paul
Energy Efficient SEU-Tolerance in DVS-Enabled Real-Time Systems through Information Redundancy.
In, International Symposium on Low Power Electronics and Design (ISLPED 2005), San Diego, California, USA,
08 - 10 Aug 2005.
Concerns about the reliability of real-time embedded systems that employ dynamic voltage scaling has recently been highlighted [1,2,3], focusing on transient-fault-tolerance techniques based on time-redundancy. In this paper we analyze the usage of information redundancy in DVS-enabled systems with the aim of improving both the system tolerance to transient faults as well as the energy consumption. We demonstrate through a case study that it is possible to achieve both higher fault-tolerance and less energy using a combination of information and time redundancy when compared with using time redundancy alone. This even holds despite the impact of the information redundancy hardware overhead and its associated switching activities.
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