Intermittently-powered bluetooth that works

de Winkel, J.; Tang, Haozhe; Pawełczak, Przemysław

doi:10.1145/3498361.3538934

Intermittently-powered bluetooth that works

Title

Intermittently-powered bluetooth that works

Author

de Winkel, J. (TU Delft Embedded Systems)
Tang, Haozhe (Student TU Delft)
Pawełczak, Przemysław (TU Delft Embedded Systems)

Date

2022

Abstract

We present an architecture for intermittently-powered wireless communication systems that does not require any changes to the official protocol specification. Our core idea is to save the intermediate state of the wireless protocol to non-volatile memory within each connection interval. The protocol state is then deterministically restored at a predefined (harvested energy-dependent) time, which follows the connection interval. As a case study for our architecture, we introduce FreeBie: a battery-free intermittently-powered Bluetooth Low Energy (BLE) mote. To the best of our knowledge FreeBie is the first battery-free active wireless system that sustains bi-directional communication on intermittent harvested energy. The strength of our architecture is articulated by FreeBie consuming at least 9.5 times less power during device inactivity periods than a state-of-the-art BLE device.

Subject

battery-free
bluetooth
embedded systems
energy harvesting
intermittent computing
mobile networks

To reference this document use:

http://resolver.tudelft.nl/uuid:36fa71dd-174c-474d-a50d-b99cd10e18c3

DOI

https://doi.org/10.1145/3498361.3538934

Publisher

Association for Computing Machinery (ACM)

ISBN

978-1-4503-9185-6

Source

MobiSys 2022 - Proceedings of the 2022 20th Annual International Conference on Mobile Systems, Applications and Services