CATO: Wake-Up reCeiver-bAsed communicaTiOn for Batteryless Devices

Area of Science:

• Computer Science
• Electrical Engineering
• Wireless Communication

Background:

• Batteryless devices are crucial for sustainable Internet of Things (IoT) applications.
• These devices operate intermittently due to stringent energy budgets, limiting energy-intensive functions like wireless communication.

Purpose of the Study:

• To propose wake-up receiver (WuR)-based solutions for energy-efficient communication among batteryless, energy-harvesting devices.
• To introduce a MAC protocol (BEWARE-MAC) and a neighbor discovery protocol (WEND) for these devices.

Main Methods:

• Developed BEWARE-MAC, a MAC protocol leveraging WuR capabilities for efficient message exchange.
• Proposed WEND, a WuR-based neighbor discovery protocol for intermittently powered devices.
• Evaluated protocols using experimental and simulation-based results.

Main Results:

• BEWARE-MAC enables efficient wireless communication for batteryless devices.
• WEND demonstrates broadcast capabilities for WuR-based neighbor discovery.
• The proposed protocols significantly improve goodput for energy-constrained devices.

Conclusions:

• WuR-based solutions effectively facilitate energy-efficient communication in batteryless IoT networks.
• BEWARE-MAC can enhance device goodput by up to 61.1%, overcoming communication challenges.
• The developed protocols pave the way for more robust and sustainable batteryless IoT systems.