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Analytical Method for Choosing the Most Efficient Algorithm for Fault-Tolerant Combinational Circuits Synthesis
Authors
	Telpukhov D.V.
	Zhukova T.D.
	Kretinina P.D.
Date of publication
	2021
DOI
	10.31114/2078-7707-2021-3-159-165
Abstract
	Today the design of fault-tolerant combinational devices is a most urgent task. Previously, designers placed major focus on memory elements protection against negative environmental conditions, since it was believed that combinational circuits are not prone to failure. However, improvement of basic characteristics of integrated circuits led to sharp in-crease in the number of failures in their combination sections. At the moment, the most promising direction for improving fault-tolerance characteristics of combinational devices are synthesis methods based on redundant coding. Additional structural redundancy introduced by such meth-ods provides combinational circuits with the skill of detect-ing and/or correcting failures. Unfortunately, the choice among the variety of synthesis methods is complicated by the fact that each of these methods builds a device with its own reliability characteristics. To solve this problem, we propose to use a complex criterion, which, depending on the priority coefficient chosen by the designer, allows us to select the most appropriate method for synthesizing a device for the given environmental conditions. In this paper several synthesis methods were studied, which made it possible to assess efficiency of the developed complex criterion. For each of these methods, we got evaluation functions specifications, which allow calculating the major characteristics of the resulting circuits analytically. We proposed to use the obtained specifications for calculating analytical values of the complex criterion without preliminary modeling. Our research showed that the use of analytical functions can speed up and simplify the process of determining the best synthesis method for a specific device. In the future, we plan to introduce these specifications and the complex criterion into our custom subsystem for automated design of fault-tolerant combinational circuits based on redundant coding methods.
Keywords
	combinational circuits, structure redundancy, fault-tolerant coding, concurrent error detection, reliability characteristic.
Library reference
	Telpukhov D.V., Zhukova T.D., Kretinina P.D. Analytical Method for Choosing the Most Efficient Algorithm for Fault-Tolerant Combinational Circuits Synthesis // Problems of Perspective Micro- and Nanoelectronic Systems Development - 2021. Issue 3. P. 159-165. doi:10.31114/2078-7707-2021-3-159-165
URL of paper
	http://www.mes-conference.ru/data/year2021/pdf/D046.pdf