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Demo: Energy Neutral Backscatter Device Utilizing High Performance Commercial Components
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en
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3
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Proceedings of the 4th International Conference on 6G Networking, 6GNet 2025, pp. 100-102
Abstract
This demonstration presents an energy-autonomous ambient backscatter device that achieves full operational self-sufficiency by harvesting energy from ambient light. Unlike the 3GPP-defined Ambient Internet of Things (A-IoT) concept, which relies on RF-based energy harvesting and continuous-wave illumination, our setup exploits existing LTE downlink signals as the communication carrier and leverages the user equipment (UE) channel estimator as the backscatter receiver. The prototype integrates a high-performance microcontroller unit (MCU) capable of executing complex signal processing tasks while maintaining energy neutrality through photovoltaic energy harvesting. Real-time power measurements demonstrate less than 30 µW consumption for communication, and the energy harvested suffices for continuous operation. This proof-of-concept validates the feasibility of light-powered, infrastructure-compatible ambient backscatter communication, representing a complementary and sustainable direction for 6G A-IoT systems.
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Koskinen, K, Liao, J, Ruttik, K & Jäntti, R 2026, Demo: Energy Neutral Backscatter Device Utilizing High Performance Commercial Components. in D-T Phan-Hui, R L Aguiar, E Dotaro, T Mahmoodi & S Secci (eds), Proceedings of the 4th International Conference on 6G Networking, 6GNet 2025. IEEE, pp. 100-102, International Conference on 6G Networking, Paris, France, 17/12/2025. https://doi.org/10.1109/6GNet68413.2025.11314141