Energy-quality scalable adaptive VLSI circuits and systems beyond approximate computing.
DATE(2017)
摘要
In this paper, the concept of energy-quality (EQ) scalable systems is introduced and explored, as novel design dimension to scale down energy in integrated systems for the Internet of Things (IoT). EQ-scalable systems explicitly trade off energy and quality at different levels of abstraction (\"vertically\"), and sub-systems (\"horizontally\"), creating new opportunities to improve energy efficiency for a given task and expected \"quality\". The concept of quality slack, a taxonomy of techniques to trade off energy and quality and a general EQ-scalable architecture are presented. The generality of the EQ-scaling concept is shown through several examples, ranging from logic to analog circuits, to memories and Analog-Digital Converters. Challenges, opportunities and expected energy gains are discussed to gain an understanding of the potential of the EQ-scalable integrated circuits and systems. As a result, EQ scalable systems are expected to substantially improve the energy efficiency of systems for IoT, compensating the limited energy gains that will be offered by technology and voltage scaling.
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关键词
VLSI design, energy efficiency, energy-quality tradeoff, adaptive energy mitigation
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