Wired field buses have proved their effectiveness to support Cyber-Physical Systems (CPS). However, in avionics, for ease of deployment, or for new functionality featuring mobile devices, there is a strong interest for wireless solutions. Low-power wireless protocols have been proposed, but requirements of a large class of CPS applications can still not be satisfied. This paper presents Time-Triggered-Wireless (TTW), a distributed low-power wireless system design that minimizes energy consumption and offers end-to-end timing predictability, adaptability, reliability, low latency. Our evaluation shows a reduction of communication latency by a factor 2x and of energy consumption by 33-40% compared to state-of-the-art approaches. This validates the suitability of TTW for wireless CPS applications and opens the way for implementation and real-world experience with industry partners.
@article{arxiv.1711.05581,
title = {TTW: A Time-Triggered-Wireless Design for CPS [ Extended version ]},
author = {Romain Jacob and Licong Zhang and Marco Zimmerling and Jan Beutel and Samarjit Chakraborty and Lothar Thiele},
journal= {arXiv preprint arXiv:1711.05581},
year = {2018}
}
Comments
13 pages, 8 figures. Extended version of the same paper, to be published in the proceedings of DATE 2018