The 2009 International Conference on Hardware-Software Co-design and System Synthesis (CODES-ISSS) has recognized research on combining power management and fault tolerance with its Best Paper Award. In the paper “A Standby-Sparing Technique With Low Energy-Overhead for Fault-Tolerant Hard Real-Time Systems,” an international team describes a hardware-redundancy, fault-tolerance technique offering dynamic and frequency voltage scaling as well as dynamic power management awareness. University of Southampton professor Bashir M. Al-Hashimi, Sharif University’s Alireza Ejlai, and the University of Linkoping’s Petru Eles developed the technique to reduce the energy use of embedded computing systems. “We developed all the necessary theoretical foundations to work out the operating voltages of the primary unit and when to activate the spare unit of the developed technique to achieve the best possible fault-tolerance performance with minimum energy cost and meeting the imposed system deadline,” says Al-Hashimi. “It represents an important step towards development of the low power and reliable embedded computing systems required in emerging mobile electronics applications.”
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