Energy-Efficient and High-Speed Approximate Signed Multipliers with Sign-Focused Compressors

Yi Guo*, Heming Sun, Shinji Kimura

*この研究の対応する著者

研究成果

1 被引用数 (Scopus)

抄録

Approximate computing has emerged as a promising approach to reduce energy by sacrificing some accuracy in error-tolerant applications. For these applications, multiplication is a key fundamental operation. In the paper, we propose an approximate signed multiplier design with a low power consumption and a short critical path. Inexact sign-focused compressors are first proposed to accumulate partial products, which cut the carry propagation and simplify the circuit complexity. Moreover, three types of approximate multipliers are presented to achieve different trade-offs between accuracy loss and hardware saving. Experimental results show that the most accurate proposed multiplier reduces power by 52.44%, area by 37.73%, and delay by 22.14%, compare with the exact signed multiplier. In addition, the proposed multiplier design costs less hardware than other multipliers with a comparable accuracy. At last, an application to image processing shows the efficiency of proposed signed multipliers.

本文言語English
ホスト出版物のタイトルProceedings - 32nd IEEE International System on Chip Conference, SOCC 2019
編集者Danella Zhao, Arindam Basu, Magdy Bayoumi, Gwee Bah Hwee, Ge Tong, Ramalingam Sridhar
出版社IEEE Computer Society
ページ330-335
ページ数6
ISBN(電子版)9781728134826
DOI
出版ステータスPublished - 2019 9
イベント32nd IEEE International System on Chip Conference, SOCC 2019 - Singapore, Singapore
継続期間: 2019 9 32019 9 6

出版物シリーズ

名前International System on Chip Conference
2019-September
ISSN(印刷版)2164-1676
ISSN(電子版)2164-1706

Conference

Conference32nd IEEE International System on Chip Conference, SOCC 2019
国/地域Singapore
CitySingapore
Period19/9/319/9/6

ASJC Scopus subject areas

  • ハードウェアとアーキテクチャ
  • 制御およびシステム工学
  • 電子工学および電気工学

フィンガープリント

「Energy-Efficient and High-Speed Approximate Signed Multipliers with Sign-Focused Compressors」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル