FLeet

FLeet: When time-bounded communication meets high energy-efficiency

Sarkar, Chayan (TCS Research Innovation)
Venkatesha Prasad, Ranga Rao (TU Delft Embedded Systems)
Langendoen, K.G. (TU Delft Embedded Systems)

2019

With the advent of low-cost, embedded sensor-actuator devices, the applications of cyber-physical systems have spread multi-fold in domains like infrastructure, manufacturing, automation, etc. Wireless sensor-actuator networks (WSANs) act as the backbone for applications in these domains. Typical WSAN deployments focus on energy-efficiency (in-turn lifetime) as replacing batteries is labor intensive and expensive. However, many CPS applications require highly-reliable data delivery with strict time bounds. Unfortunately, the classical approach of scheduling/prioritizing flows for bounded time communication is hard to implement with energy-constrained embedded devices. In this work, we present FLEET, a communication primitive that guarantees timely data delivery with 1) low latency by scheduling a maximum number of end-to-end flows within a short time span; 2) highly energy-efficient networking; and 3) reliable data delivery. Using a smart parallelization technique, FLEET achieves simultaneous transmissions while guaranteeing data delivery. This reduces the average duty-cycle of the nodes and makes it more energy-efficient than many state-of-the-art protocols. By combining multiple routing strategies, FLEET not only simplifies the schedulability problem but also accommodates more flows within a time span reducing delay considerably. Overall, with respect to the state of the art, FLEET offers a delay and duty cycling reduction by 2.2 and 2.8 times, respectively.

Capture effect
Clustering
Constructive interference
Cyber-physical systems
Energy-efficient
Internet of Things
Low-latency
Wireless sensor networks
OA-Fund TU Delft

http://resolver.tudelft.nl/uuid:666f7176-d7f4-49cd-9a47-d14308df6cff

https://doi.org/10.1109/ACCESS.2019.2920937

2169-3536

IEEE Access, 7, 77555-77568

Institutional Repository

journal article

© 2019 Chayan Sarkar, Ranga Rao Venkatesha Prasad, K.G. Langendoen