1. Design, Synthesis and Application of A Novel Approximate Adder
- Author
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Tian Ban, Lirida Alves de Barros Naviner, and Baokun Wang
- Subjects
Very-large-scale integration ,Adder ,Approximate computing ,Mean squared error ,Computer science ,020208 electrical & electronic engineering ,02 engineering and technology ,020202 computer hardware & architecture ,Design synthesis ,Power consumption ,0202 electrical engineering, electronic engineering, information engineering ,Discrete cosine transform ,Hardware_ARITHMETICANDLOGICSTRUCTURES ,Arithmetic ,Design paradigm - Abstract
Approximate computing is a new design paradigm in VLSI design and test. It can improve the performance of error-tolerant applications at the expense of slight loss in computational accuracy. In this paper, we propose a novel approximate adder with a hybrid structure (HYB-adder) which produces results of different precision. The proposed adder is synthesized by utilizing 28nm FD-SOI (fully-depleted silicon-on-insulator) technology. The proposed HYB-adder outperforms existing approximate adder designs regarding mean error distance with comparable area, delay and power consumption. The efficiency is also validated by its application in DCT/IDCT procedures.
- Published
- 2018