Synchronization in wireless biomedical-sensor networks with Bluetooth Low Energy

Abstract

Bluetooth Low Energy (BLE) has reduced the energy consumption for sensor nodes drastically. One major reason for this improvement is a non-continuous connection between the nodes. But this causes also a nondeterministic data transmission time. Most synchronization protocols are influenced by this characteristic, with the result of less accuracy. In wireless body sensor networks this accuracy is often of vital importance. Therefore this paper evaluates different synchronization principles customized for BLE.

Keywords

• ble
• bluetooth
• low energy
• synchronization
• sensor networks
• multi-sensor monitoring