Fast Inventory for 3GPP Ambient IoT Considering Device Unavailability Due to Energy Harvesting. - Zhikun Wu; Kazuk Takeda; Piyush Gupta; Ruiming Zheng; Luanxia Yang; Chengjin Zhang; Zhifei Fan; Hao Xu 001; Kiran Mukkavilli; Tingfang Ji (IEEE Commun. Stand. Mag., 2025)