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  4. Mitigating soft error risks through protecting critical variables and blocks
 
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2011
Conference Paper
Title

Mitigating soft error risks through protecting critical variables and blocks

Abstract
Smaller feature size, higher clock frequency and lower power consumption are of core concerns of today's nano-technology, which has been resulted by continuous downscaling of CMOS technologies. The resultant 'device shrinking' reduces the soft error tolerance of the VLSI circuits, as very little energy is needed to change their states. Safety critical systems are very sensitive to soft errors. A bit flip due to soft error can change the value of critical variable and consequently the system control flow can completely be changed which leads to system failure. To minimize soft error risks, a novel methodology is proposed to detect and recover from soft errors considering only 'critical code blocks' and 'critical variables' rather than considering all variables and/or blocks in the whole program. The proposed method shortens space and time overhead in comparison to existing dominant approaches.
Author(s)
Sadi, M.S.
Uddin, M.N.
Khan, M.M.R.
Jürjens, J.
Mainwork
Advances in wireless, mobile networks and applications. International conferences WiMoA 2011 and ICCSEA 2011  
Conference
International Conference on Wireless, Mobile Networks and Applications (WiMoA) 2011  
International Conference on Computer Science, Engineering and Applications (ICCSEA) 2011  
DOI
10.1007/978-3-642-21153-9_13
Language
English
Fraunhofer-Institut für Software- und Systemtechnik ISST  
Keyword(s)
  • soft errors

  • safety critical system

  • critical variable

  • critical block

  • criticality analysis

  • risk mitigation

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