Eco-WakeLoc: An Energy-Neutral and Cooperative UWB Real-Time Locating System
Silvano Cortesi, Lukas Schulthess, Davide Plozza, Christian Vogt, Michele Magno

TL;DR
Eco-WakeLoc is an energy-neutral, cooperative UWB indoor localization system that combines ultra-low power wake-up radios with solar energy harvesting to achieve centimeter-level accuracy without continuous infrastructure power.
Contribution
It introduces a scalable, energy-neutral RTLS using wake-up radios, cooperative localization, and adaptive scheduling, enabling long-term operation without constant energy consumption.
Findings
Achieves 43cm average localization accuracy in real-world tests.
Consumes only 3.22mJ per localization for active tags.
Maintains over 7% battery capacity after one year of operation.
Abstract
Indoor localization systems face a fundamental trade-off between efficiency and responsiveness, which is especially important for emerging use cases such as mobile robots operating in GPS-denied environments. Traditional RTLS either require continuously powered infrastructure, limiting their scalability, or are limited by their responsiveness. This work presents Eco-WakeLoc, designed to achieve centimeter-level UWB localization while remaining energy-neutral by combining ultra-low power wake-up radios (WuRs) with solar energy harvesting. By activating anchor nodes only on demand, the proposed system eliminates constant energy consumption while achieving centimeter-level positioning accuracy. To reduce coordination overhead and improve scalability, Eco-WakeLoc employs cooperative localization where active tags initiate ranging exchanges (trilateration), while passive tags…
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Taxonomy
TopicsIndoor and Outdoor Localization Technologies · Underwater Vehicles and Communication Systems · Wireless Networks and Protocols
