Accuracy-Configurable Radix-4 Adder with a Dynamic Output Modification Scheme

Also Available Domains Transistor Logic|Tanner EDA

Project Code :TVMATO773

Abstract

Approximate computing is an efficient approach for reducing computational costs. This method involves a trade-off between computational accuracy and the circuit’s power consumption, delay, and area. However, the accuracy requirements may differ for different applications. In some situations, precise results are required. Therefore, this paper proposes an accuracy-configurable radix-4 adder (ACRA), which uses the power gating technique to turn on or turn off the partial logic gates of an adder element dynamically to compute accurate or approximate results. When the ACRA operates in the approximate mode, the partial sum of one adder element is modified to reduce the error distance between the approximate and accurate results. 

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Specifications

Specifications:

Software Requirements:

  • Cadence Virtuoso
  • Technology files: 45nm

Hardware Requirements:

  • Microsoft® Windows XP
  • Intel® Pentium® 4 processor or Pentium 4 equivalent with SSE support 
  • 512 MB RAM 
  • 100 MB of available disk space


Learning Outcomes

  • Introduction to Adders
    • Types of Adders
    • Limitations & Applications.
  • Introduction to ACRA.
    • Knowledge on Approximate adders.
    • Knowledge on Accurate adders
    • Knowledge on Power gating Technique
  • Introduction to Radix -4 adder
    • Knowledge of designing radix -4 adder
    • Radix -4 adder
    • Radix-4 adder based on multiplexers
  • Importance of Transistors
    • MOS Fundamentals
    • NMOS/PMOS/CMOS Technologies
    • How to design circuits using Transistor logic?
    • Transistor level design for ACRA & Radix-4 adder 
    • How to design n-bit adder using ACRA with Power Gating Technique?
    • Introduction to Analog Electronics
    • Importance of Two stage Power Gating Technique & ACRA
    • Scope of  ACRA  in today’s world
    • Applications in Real time.
  • Cadence Virtuoso tool for design and simulation
    • Solution providing for real time problems
    • Project Development Skills:
      • Problem Analysis Skills
      • Problem Solving Skills
      • Logical Skills
      • Designing Skills
      • Testing Skills
      • Debugging Skills
      • Presentation skills
      • Thesis Writing Skills


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