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Opportunistic scheduling of control tasks over shared wireless channels

Publication ,  Conference
Gatsis, K; Pajic, M; Ribeiro, A; Pappas, GJ
Published in: Cyber-Physical Systems (ICCPS), 2014 ACM/IEEE International Conference on
April 2014

We consider a wireless networked control system with multiple loops closing over a shared wireless medium. To avoid interferences a centralized scheduler decides which control task accesses the channel at each time step, opportunistically based on the random wireless channel conditions that systems experience. We formulate the problem of designing channel-aware scheduling and transmit power allocation mechanisms that guarantee Lyapunov-like performances for all control tasks in expectation over the channel conditions, while they also minimize the total power expenditures. Exploiting the zero duality gap, optimal variables are obtained by solving at the dual domain either offline, or online based on the observed random channel sequence. Simulations illustrate the power savings of the opportunistic scheme.

Duke Scholars

Published In

Cyber-Physical Systems (ICCPS), 2014 ACM/IEEE International Conference on

DOI

Publication Date

April 2014

Start / End Page

48 / 59
 

Citation

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Gatsis, K., Pajic, M., Ribeiro, A., & Pappas, G. J. (2014). Opportunistic scheduling of control tasks over shared wireless channels. In Cyber-Physical Systems (ICCPS), 2014 ACM/IEEE International Conference on (pp. 48–59). https://doi.org/10.1109/ICCPS.2014.6843710
Gatsis, K., M. Pajic, A. Ribeiro, and G. J. Pappas. “Opportunistic scheduling of control tasks over shared wireless channels.” In Cyber-Physical Systems (ICCPS), 2014 ACM/IEEE International Conference On, 48–59, 2014. https://doi.org/10.1109/ICCPS.2014.6843710.
Gatsis K, Pajic M, Ribeiro A, Pappas GJ. Opportunistic scheduling of control tasks over shared wireless channels. In: Cyber-Physical Systems (ICCPS), 2014 ACM/IEEE International Conference on. 2014. p. 48–59.
Gatsis, K., et al. “Opportunistic scheduling of control tasks over shared wireless channels.” Cyber-Physical Systems (ICCPS), 2014 ACM/IEEE International Conference On, 2014, pp. 48–59. Manual, doi:10.1109/ICCPS.2014.6843710.
Gatsis K, Pajic M, Ribeiro A, Pappas GJ. Opportunistic scheduling of control tasks over shared wireless channels. Cyber-Physical Systems (ICCPS), 2014 ACM/IEEE International Conference on. 2014. p. 48–59.

Published In

Cyber-Physical Systems (ICCPS), 2014 ACM/IEEE International Conference on

DOI

Publication Date

April 2014

Start / End Page

48 / 59