A METHODOLOGY FOR IMPROVEMENT OF ROBA MULTIPLIER FOR ELECTRONIC APPLICATIONS

1Angila Rose Daniel and 2B. Deepa

1M.Tech in VLSI and embedded systems, Kerala technical university, India

2Assistant professor, EC Department, Kerala technical university, India

ABSTRACT

In this paper, propose an approximate multiplier that is high speed yet energy efficient. The approach is to around the operands to the closest exponent of 2. This way the machine intensive a part of the multiplication is omitted up speed and energy consumption. The potency of the planned multiplier factor is evaluated by comparing its performance with those of some approximate and correct multipliers using different design parameters. In this proposed approach combined the conventional RoBA multiplier with Kogge-stone parallel prefix adder. The results revealed that, in most (all) cases, the newly designed RoBA multiplier architectures outperformed the corresponding approximate (exact) multipliers. Thus improved the parameters of RoBA multiplier which can be used in the voice or image smoothing applications in the DSP.

KEYWORDS

Accuracy, approximate computing, efficient, error analysis, high speed multiplier, RoBa architecture, kogge stone adder, DSP processing

Orignal Source Link : http://aircconline.com/vlsics/V10N1/10119vlsi01.pdf

http://airccse.org/journal/vlsi/vol10.html