Network Estimation and Packet Delivery Prediction for Control over Wireless Mesh Networks
2011 (English)In: IFAC Proceedings Volumes (IFAC-PapersOnline), 2011, 6573-6579 p.Conference paper (Refereed)
Much of the current theory of networked control systems uses simple point-to-point communication models as an abstraction of the underlying network. As a result, the controller has very limited information on the network conditions and performs suboptimally. This work models the underlying wireless multihop mesh network as a graph of links with transmission success probabilities, and uses a recursive Bayesian estimator to provide packet delivery predictions to the controller. The predictions are a joint probability distribution on future packet delivery sequences, and thus capture correlations between successive packet deliveries. We look at finite horizon LQG control over a lossy actuation channel and a perfect sensing channel, both without delay, to study how the controller can compensate for predicted network outages.
Place, publisher, year, edition, pages
2011. 6573-6579 p.
Control and estimation with data loss; Networked embedded control systems; Stochastic control
IdentifiersURN: urn:nbn:se:kth:diva-47686DOI: 10.3182/20110828-6-IT-1002.00828ScopusID: 2-s2.0-84866744930OAI: oai:DiVA.org:kth-47686DiVA: diva2:456012
18th IFAC World Congress; Milano; Italy; 28 August 2011 through 2 September 2011
FunderTrenOp, Transport Research Environment with Novel PerspectivesICT - The Next Generation
QC 201409022011-11-112011-11-112014-10-03Bibliographically approved