Mojtaba Valinataj

Work place: School of Electrical and Computer Engineering, Babol Noshirvani University of Technology, Babol, 47148-71167, Iran



Research Interests: Computer systems and computational processes, Computer Architecture and Organization, Systems Architecture, Data Structures and Algorithms


Mojtaba Valinataj received the B.Sc., M.Sc. and PhD degrees from the University of Tehran, Tehran, Iran in computer engineering, in 2000, 2003 and 2010, respectively. He is working as a faculty member in Babol Noshirvani University of Technology, Babol, Iran since 2010. He performed different research projects at Embedded Computer and Electronic Systems laboratory, University of Turku, Turku, Finland, as a visiting researcher in 2009, 2011 and 2012. His research interests include fault-tolerant system design, on-chip networks, computer arithmetic, reversible logic, chip-multiprocessor and many-core systems, and computer architecture.

Author Articles
A Novel Reduced-Precision Fault-Tolerant Floating-Point Multiplier

By Maryam Mohajer Mojtaba Valinataj

DOI:, Pub. Date: 8 Jun. 2017

This paper presents a new fault-tolerant architecture for floating-point multipliers in which the fault-tolerance capability is achieved at the cost of output precision reduction. In this approach, to achieve the fault-tolerant floating-point multiplier, the hardware cost of the primary design is reduced by output precision reduction. Then, the appropriate redundancy is utilized to provide error detection/correction in such a way that the overall required hardware becomes almost the same as the primary multiplier. The proposed multiplier can tolerate a variety of permanent and transient faults regarding the acceptable reduced precisions in many applications. The implementation results reveal that the 17-bit and 14-bit mantissas are enough to obtain a floating-point multiplier with error detection or error correction, respectively, instead of the 23-bit mantissa in the IEEE-754 standard-based multiplier with a few percent area and power overheads.

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