@article{gajdzik2026design,
  title = {Design of a Resilient Android-Based Edge Client for ECG Telemetry Using Bluetooth Low Energy},
  author = {Fryderyk GAJDZIK and Michal KIMBAR and Pawel KROWICKI},
  year = 2026,
  url = {https://ibimapublishing.com/p-articles/47ICT/2026/4725326/},
  journal = {Communications of International Proceedings},
  volume = 2026 (13),
  abstract = {Mobile biomedical telemetry systems require more than a user-facing application for displaying sensor values. 
In practical acquisition scenarios, the mobile device must also act as an edge client that mediates between a constrained Bluetooth Low Energy sensor and a backend service while preserving data continuity under intermittent network conditions. This paper presents the design of a prototype Android-based edge client for session-oriented ECG telemetry acquisition. The aim is to organize the mobile layer as a resilient acquisition component responsible for BLE connectivity, acquisition control, packet parsing, real-time preview, local buffering, session registration, and deferred synchronization with a FastAPI edge backend. The proposed architecture combines a binary BLE frame format with sequence numbering, an offline-first local persistence strategy, CSV storage for raw session samples, and a Room database used as a session metadata registry and synchronization queue. The main contribution is an engineering design that separates the visualization path from the raw-data persistence path and treats the smartphone as a local edge buffer rather than only a display terminal. The work is limited to software architecture and functional verification of the prototype data flow. It does not include clinical validation, diagnostic performance evaluation, or certification as 
a medical device.},
  keywords = {mobile edge computing, Bluetooth Low Energy, ECG telemetry, biomedical data acquisition, Android, Room, FastAPI, offline-first synchronization, telemetry data integrity},
  note = Article ID: 4725326
}