Paper Info
Title
RoBA Multiplier: A Rounding-Based Approximate Multiplier for High-Speed yet Energy-Efficient Digital Signal Processing.
Abstract
In this paper, we propose an approximate multiplier that is high speed yet energy efficient. The approach is to round the operands to the nearest exponent of two. This way the computational intensive part of the multiplication is omitted improving speed and energy consumption at the price of a small error. The proposed approach is applicable to both signed and unsigned multiplications. We propose three hardware implementations of the approximate multiplier that includes one for the unsigned and two for the signed operations. The efficiency of the proposed multiplier is evaluated by comparing its performance with those of some approximate and accurate multipliers using different design parameters. In addition, the efficacy of the proposed approximate multiplier is studied in two image processing applications, i.e., image sharpening and smoothing.
Year
DOI
Venue
2017
10.1109/TVLSI.2016.2587696
IEEE Trans. VLSI Syst.
Keywords
Field
DocType
Hardware,Digital signal processing,Image processing,Computer architecture,Very large scale integration,Energy consumption,Approximate computing
Sharpening,Digital signal processing,Computer science,Image processing,Electronic engineering,Multiplier (economics),Rounding,Multiplication,Smoothing,Energy consumption
Journal
Volume
Issue
ISSN
25
2
1063-8210
Citations 
PageRank 
References 
15
0.76
15
Authors
5
Name
Order
Citations
PageRank
Reza Zendegani1191.24
Mehdi Kamal218930.41
Milad Bahadori3201.58
Ali Afzali-Kusha48111.95
Massoud Pedram578011211.32