Paper Title
HYBRID APPROXIMATE ADDER FOR POWER, AREA, DELAY TRADE-OFF BASED ON BCSA AND ALA
Article Identifiers
Authors
Akhila R. , Sindhu T. V.
Keywords
Approximate Computing, Hybrid Adder, Speculative Adder, Area Efficient, Low Power, Delay Efficient
Abstract
In application domains such as multimedia and image processing, digital signal processing, wireless communication, machine learning, and data mining which are inherently error-resilient, approximate computing can be used to overcome the thermal design power constraint. The technique may be used to attain more energy reduction and/or performance at the cost of some accuracy loss. Approximate adders can be broadly classified into two categories: block-based approximate adders (BAAs) and approximate least significant bit (LSB) adders (ALAs). In this paper, a hybrid approximate adder based on BCSA and ALA is proposed, for power, area and delay trade-off. In the proposed technology, both the BAA and ALA are used in a single 16 bit adder circuit. That is, the whole circuit is divided into two 8 bit parts and the MSB part is designed using Block based carry speculative Adders (BCSA), which improves the speed and the LSB part make use of approximate least significant bit Adders (ALAs) which results in area and power reduction. Compared to BAAs, ALAs are more hardware and power efficient and by using block based approximate adder, the overall delay can be reduced. Thus, power, area and delay trade off is achieved.
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How To Cite (APA)
Akhila R. & Sindhu T. V. (May-2022). HYBRID APPROXIMATE ADDER FOR POWER, AREA, DELAY TRADE-OFF BASED ON BCSA AND ALA. INTERNATIONAL JOURNAL OF NOVEL RESEARCH AND DEVELOPMENT, 7(5), 889-893. https://ijnrd.org/papers/IJNRD2205102.pdf
Issue
Volume 7 Issue 5, May-2022
Pages : 889-893
Other Publication Details
Paper Reg. ID: IJNRD_181476
Published Paper Id: IJNRD2205102
Downloads: 000121979
Research Area: Engineering
Country: Chalakudy, Kerala, India
Published Paper PDF: https://ijnrd.org/papers/IJNRD2205102.pdf
Published Paper URL: https://ijnrd.org/viewpaperforall?paper=IJNRD2205102
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Journal Name: INTERNATIONAL JOURNAL OF NOVEL RESEARCH AND DEVELOPMENT(IJNRD)
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This work is licensed under a Creative Commons Attribution 4.0 International License and The Open Definition
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