A Novel Heterogeneous Approximate Multiplier for Low Power and High Performance
| Autor: | Hamzeh Ahangari, Smail Niar, Ozcan Ozturk, Ihsen Alouani |
|---|---|
| Přispěvatelé: | Laboratoire d'Automatique, de Mécanique et d'Informatique industrielles et Humaines - UMR 8201 (LAMIH), Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Centre National de la Recherche Scientifique (CNRS)-INSA Institut National des Sciences Appliquées Hauts-de-France (INSA Hauts-De-France), Ahangari, Hamzeh, Öztürk, Özcan |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Adder
General Computer Science Design space exploration Computer science 02 engineering and technology Transistors Bottleneck Parallel multipliers Space explorations 0202 electrical engineering electronic engineering information engineering [INFO]Computer Science [cs] Computer architecture Digital design techniques Multiplying circuits Delays Design parameters Design paradigm Electronic circuit Space exploration 020208 electrical & electronic engineering Dissipation Approximate computing 020202 computer hardware & architecture Energy efficiency Computer engineering Control and Systems Engineering Space research Improving performance Multiplier (economics) Adders Efficient energy use |
| Zdroj: | IEEE Embedded Systems Letters IEEE Embedded Systems Letters, Institute of Electrical and Electronics Engineers, 2018, 10 (2), pp.45-48. ⟨10.1109/LES.2017.2778341⟩ |
| ISSN: | 1943-0663 |
| DOI: | 10.1109/LES.2017.2778341⟩ |
| Popis: | International audience; Approximate computing is a design paradigm considered for a range of applications that can tolerate some loss of accuracy. In fact, the bottleneck in conventional digital design techniques can be eliminated to achieve higher performance and energy efficiency by compromising accuracy. In this letter, a new architecture that engages accuracy as a design parameter is presented, where an approximate parallel multiplier using heterogeneous blocks is implemented. Based on design space exploration, we demonstrate that introducing diverse building blocks to implement the multiplier rather than cloning one building block achieves higher precision results. We show experimental results in terms of precision, delay, and power dissipation as metrics and compare with three previous approximate designs. Our results show that the proposed heterogeneous multiplier achieves more precise outputs than the tested circuits while improving performance and power tradeoffs. |
| Databáze: | OpenAIRE |
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