Fast Inventory for 3GPP Ambient IoT Considering Device Unavailability Due to Energy Harvesting
Year: 2025
Type: article
Abstract: With the growing demand for massive internet of things (IoT), new IoT technology, namely ambient IoT (A-IoT), has been studied in the 3rd Generation Partnership Project (3GPP). A-IoT devices are batteryless and consume ultra-low power, relying on energy harvesting and energy storage to capture a small amount of energy for communication. A promising use-case of A-IoT is inventory, where a reader communicates with hundreds of A-IoT devices to identify them. However, energy harvesting required before communication can significantly delay or even fail inventory completion. In this work, solutions including duty cycled monitoring (DCM), device grouping and low-power receiving chain are proposed. Evaluation results show that the time required for a reader to complete an inventory procedure for hundreds of A-IoT devices can be reduced by 50% to 83% with the proposed methods.
Authors: Zhikun Wu, Kazuk Takeda, Piyush Gupta, Ruiming Zheng, Luanxia Yang, Chengjin Zhang, Zhifei Fan, Hao Xu, Kiran Mukkavilli, Tingfang Ji
Institution: Qualcomm (United States)
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W4410638836