Print Email Facebook Twitter Intermittently-powered bluetooth that works Title Intermittently-powered bluetooth that works Author de Winkel, J. (TU Delft Embedded and Networked Systems) Tang, Haozhe (Student TU Delft) Pawełczak, Przemysław (TU Delft Embedded and Networked 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-freebluetoothembedded systemsenergy harvestingintermittent computingmobile 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 Event 20th ACM International Conference on Mobile Systems, Applications and Services, MobiSys 2022, 2022-06-27 → 2022-07-01, Portland, United States Series MobiSys 2022 - Proceedings of the 2022 20th Annual International Conference on Mobile Systems, Applications and Services Part of collection Institutional Repository Document type conference paper Rights © 2022 J. de Winkel, Haozhe Tang, Przemysław Pawełczak Files PDF 3498361.3538934.pdf 1.81 MB Close viewer /islandora/object/uuid:36fa71dd-174c-474d-a50d-b99cd10e18c3/datastream/OBJ/view