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A Hybrid Energy Harvesting Design for On-Body Internet-of-Things (IoT) Networks
Omar A Saraereh1, Amer Alsaraira2, Imran Khan3
1Department of Electrical Engineering, Hashemite University, Zarqa 13133, Jordan.
Sensors (Basel, Switzerland)
|January 16, 2020
Summary
This study introduces an energy harvesting protocol for Internet-of-Things (IoT) devices, utilizing radio frequency and thermal energy. The novel approach significantly enhances device lifecycles and harvested energy for critical healthcare applications.
Area of Science:
- Wireless Communications
- Energy Harvesting Technologies
- Internet-of-Things (IoT)
Background:
- Internet-of-Things (IoT) networks enable pervasive connectivity, with healthcare applications being critically important.
- Low-powered IoT devices, especially wearables, rely on batteries with limited lifespans, necessitating frequent replacement or recharging.
- Improving the operational lifecycle of IoT devices is crucial for sustained functionality in various applications.
Purpose of the Study:
- To design and evaluate an energy harvesting protocol for Internet-of-Things (IoT) devices.
- To enhance the lifecycle and power reliability of IoT devices by harvesting ambient energy.
- To address the power limitations of battery-dependent IoT devices in critical applications like healthcare.
Main Methods:
- Developed an energy harvesting protocol integrating radio frequency (RF) and thermal energy sources.
- Utilized a rectenna for harvesting RF energy at 2.4 GHz and a thermoelectric generator (TEG) for human thermal energy.
- Conducted extensive simulations using the Green Castalia framework within the OMNeT++ simulator.
Main Results:
- Demonstrated significant improvements in the amount of harvested energy.
- Showcased substantial enhancements in the operational lifecycle of IoT devices.
- Validated the protocol's effectiveness in improving energy efficiency and device longevity.
Conclusions:
- The proposed energy harvesting protocol effectively utilizes RF and thermal energy sources to power IoT devices.
- This approach offers a promising solution for extending the battery life and operational duration of IoT devices.
- The findings support the viability of ambient energy harvesting for sustainable IoT deployments, particularly in healthcare settings.
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