Conference paper

MRÁZEK Vojtěch, VAŠÍČEK Zdeněk and SEKANINA Lukáš. Design of Quality-Configurable Approximate Multipliers Suitable for Dynamic Environment. In: Proceedings of the 2018 NASA/ESA Conference on Adaptive Hardware and Systems. Edinburgh: Institute of Electrical and Electronics Engineers, 2018, pp. 264-271. ISBN 978-1-5386-7753-7.
Publication language:english
Original title:Design of Quality-Configurable Approximate Multipliers Suitable for Dynamic Environment
Title (cs):Návrh dynamicky konfigurovatelných aproximačních násobiček
Pages:264-271
Proceedings:Proceedings of the 2018 NASA/ESA Conference on Adaptive Hardware and Systems
Conference:NASA/ESA Conference on Adaptive Hardware and Systems 2018
Place:Edinburgh, GB
Year:2018
ISBN:978-1-5386-7753-7
DOI:10.1109/AHS.2018.8541479
Publisher:Institute of Electrical and Electronics Engineers
Keywords
Approximate computing, quality configurable circuit, evolutionary algorithms, cartesian genetic programming
Annotation
In the context of approximate computing, many different design approaches have been introduced in recent years exploiting the application error resilience in order to reduce power consumption. Among others, the concept of Quality Configurable Circuits (QCC) has been proposed. QCCs allow us to dynamically modulate the degree to which their functionality is approximated with respect to the desired quality of service. Existing approaches typically construct complex approximate circuits using smaller approximate and exact components. This approach is, however, associated with a considerable area and power overhead. To mitigate this issue, we propose a holistic approach enabling to formulate the QCC design problem as a search problem that can be solved by means of soft-computing techniques. In order to prove this concept, various quality configurable 8-bit multipliers were designed. Compared to the state-of-the-art solutions, the proposed quality configurable multipliers exhibit better tradeoffs in terms of electrical as well as quality parameters.
BibTeX:
@INPROCEEDINGS{
   author = {Vojt{\v{e}}ch Mr{\'{a}}zek and Zden{\v{e}}k
	Va{\v{s}}{\'{i}}{\v{c}}ek and Luk{\'{a}}{\v{s}}
	Sekanina},
   title = {Design of Quality-Configurable Approximate
	Multipliers Suitable for Dynamic Environment},
   pages = {264--271},
   booktitle = {Proceedings of the 2018 NASA/ESA Conference on Adaptive
	Hardware and Systems},
   year = {2018},
   location = {Edinburgh, GB},
   publisher = {Institute of Electrical and Electronics Engineers},
   ISBN = {978-1-5386-7753-7},
   doi = {10.1109/AHS.2018.8541479},
   language = {english},
   url = {http://www.fit.vutbr.cz/research/view_pub.php?id=11710}
}

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