Department of Electronics and Communication Engineering, Government Polytechnic, Hiriyur, Karnataka, India.
Review Article
World Journal of Advanced Research and Reviews, 2022, 15(03), 571-578
Received on 14 August 2022; revised on 22 September 2022; accepted on 24 September 2022
The rapid expansion of the Internet of Things (IoT) has created a growing demand for devices that operate efficiently under stringent power and energy constraints. To enable long-term functionality, especially in battery-powered and energy-harvesting IoT systems, energy-efficient circuit design has become a critical research area. This review presents a comprehensive analysis of the latest advancements in energy-efficient circuit design techniques for IoT devices. It explores various low-power strategies, including energy harvesting technologies, dynamic voltage and frequency scaling (DVFS), sub-threshold logic, and sleep mode techniques. Additionally, the study examines the role of ultra-low-power processors, communication modules, and sensors in enhancing the overall energy efficiency of IoT systems. Key challenges such as sustaining performance within limited energy budgets, reducing leakage power, and balancing power, performance, and area trade-offs are also addressed. Furthermore, the review highlights emerging trends and future research directions focused on minimizing energy consumption while ensuring scalable and reliable IoT deployments.
Sensors; Clock Gating; Energy Harvesting; Internet of Things (IoT); Dynamic Voltage and Frequency Scaling (DVFS)
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Halaswamy B M and Chethana N S. Energy-efficient circuit design strategies for IoT devices: A comprehensive review. World Journal of Advanced Research and Reviews, 2022, 15(3), 571-578. Article DOI: https://doi.org/10.30574/wjarr.2022.15.3.0967