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An Adaptive Redundancy Oriented Method to Tolerate Soft Errors in SRAM-Based FPGAs Using Unused Resources

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2 Author(s)
Bahramnejad, S. ; Dept. of Comput. Eng. & Inf. Technol., Amirkabir Univ. of Technol., Tehran, Iran ; Zarandi, H.R.

In this paper, we present an adaptive SEU-tolerance method based on redundancy for implementing circuits in SRAM-based FPGAs to tolerate soft error effects. This method uses unused resources for partial redundancy based on a property of nets called System Failure Rate (SFR). SFR of a given net is the probability of system failure when the net is faulty. The redundancy is performed based on available resources, adaptively, so that system failure rate of circuit implemented in SRAM-based FPGAs decreases. We have investigated the effect of partial redundancy on several MCNC benchmarks. The results show that if maximum tolerable overall overhead is 20%, SFR increases up to 13%.

Published in:

Availability, Reliability, and Security, 2010. ARES '10 International Conference on

Date of Conference:

15-18 Feb. 2010