20.500.12556/RUL-187000 AnchorSync a robust high-accuracy low-overhead synchronization method for ble connected devices Time synchronization is an important aspect in any electronic system composed of multiple standalone sensors. Although several well-known protocols for synchronization exist, many of them perform poorly in Bluetooth Low Energy (BLE) networks, due to non-deterministic delays introduced by link layer errors and retransmissions.We propose AnchorSync, a novel, single-packet synchronization method for BLE connected devices. By utilizing anchor points and connection event counters, which are by specification present in every BLE device, the method achieves continuous synchronization over the entire duration of a connection, using a single packet. Subsequent resynchronizations are done at every connection event without additional data. Furthermore, because anchor points are intrinsically tied to the BLE connection mechanism, the synchronization is as resilient to errors as the connection itself, since a misaligned anchor point would result in connection failure. We evaluate the timing accuracy of anchor points and implement the synchronization method on commercial BLE enabled microcontrollers. Experimental results demonstrate a sub-microsecond synchronization accuracy with an average power consumption of less than 190 μW per device. Robustness is further assessed through a coexistence test withWi-Fi interference, where the absolute average error of synchronization remains below 1 μs, with the worst observed error only −3.13 μs. Anchor point Bluetooth low energy coexistence low-overhead robustness time synchronization Bluetooth low energy časovna sinhronizacija nizek vpliv na komunikacijo soobstoj odpornost na motnje true false true Angleški jezik Slovenski jezik Članek v reviji 2026-09-08 09:33:57 2026-09-08 09:33:58 2026-09-09 04:22:17 0000-00-00 00:00:00 2026 0 0 Str. 129488-129498 Vol. 14 2026 0000-00-00 Zaloznikova Objavljeno apc 0000-00-00 0000-00-00 0000-00-00 621.39 2169-3536 10.1109/ACCESS.2026.3725297 290320387 AnchorSync_A_Robust_High-Accuracy_Low-Overhead_Synchronization_Method_for_BLE_Connected_Devices.pdf AnchorSync_A_Robust_High-Accuracy_Low-Overhead_Synchronization_Method_for_BLE_Connected_Devices.pdf 1 8E31262B6B4CC4AA3F1744A403B4A0D9 6a8a6dc4837c440a287ebfd0c2f24bc978af928ec679dea1289376fe49e18492 d8ea54e7-ab57-11f1-8bc5-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=246417 https://ieeexplore.ieee.org/document/11660448 1 a3d11d49-ab57-11f1-8bc5-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=246414 Fakulteta za elektrotehniko 0 0 0