The document discusses the design and analysis of approximate 4-2 compressors for use in multipliers, focusing on inexact computing for digital processing at nanometric scales. It presents four schemes for utilizing these compressors in a dadda multiplier, demonstrating reductions in power, delay, and transistor count compared to exact designs, along with application in image processing. The paper emphasizes the performance of the proposed designs in terms of error rates and signal-to-noise ratios, alongside necessary software and hardware requirements.

1. Logic Mind Technologies
Vijayangar (Near Maruthi Medicals), Bangalore-40
Ph: 8123668124 // 8123668066
Design and Analysis of Approximate
Compressors for Multiplication
Abstract—Inexact (or approximate) computing is an attractive paradigm for
digital processing at nanometric scales. Inexact computing is particularly
interesting for computer arithmetic designs. This paper deals with the analysis and
design of two new approximate 4-2 compressors for utilization in a multiplier.
These designs rely on different features of compression, such that imprecision in
computation (as measured by the error rate and the so-called normalized error
distance) can meet with respect to circuit-based figures of merit of a design
(number of transistors, delay and power consumption). Four different schemes for
utilizing the proposed approximate compressors are proposed and analyzed for a
Dadda multiplier. Extensive simulation results are provided and an application of
the approximate multipliers to image processing is presented. The results show that
the proposed designs accomplish significant reductions in power dissipation, delay
and transistor count compared to an exact design; moreover, two of the proposed
multiplier designs provide excellent capabilities for image multiplication with
respect to average normalized error distance and peak signal tonoise ratio (more
than 50 dB for the considered image examples).

2. SOFTWARE REQUIREMENT:
 ModelSim6.4c.
 Xilinx 9.1/13.2.
HARDWARE REQUIREMENT:
 FPGA Spartan 3.
PROJECT FLOW:
First Review:
Literature Survey
Paper Explanation
Design of Project
Project Enhancement explanation
Second Review:
Implementing 40% of Base Paper
Third Review
Implementing Remaining 60% of Base Paper with Future Enhancement (Modification)
For More Details please contact
Logic Mind Technologies
Vijayangar (NearMaruthi Medicals), Bangalore-40
Ph: 8123668124 // 8123668066
Mail: logicmindtech@gmail.com