{ "id": "2010.08447", "version": "v1", "published": "2020-10-16T15:20:43.000Z", "updated": "2020-10-16T15:20:43.000Z", "title": "Design of periodic scheduling and control for networked systems under random data loss", "authors": [ "Atreyee Kundu", "Daniel E. Quevedo" ], "comment": "Extended version of our manuscript under review", "categories": [ "math.OC", "cs.SY", "eess.SY" ], "abstract": "This paper deals with Networked Control Systems (NCSs) whose shared networks have limited communication capacity and are prone to data losses. We assume that among (N) plants, only (M < N) plants can communicate with their controllers at any time instant. In addition, a control input, at any time instant, is lost in a channel with a probability (p). Our contributions are threefold. First, we identify necessary and sufficient conditions on the open-loop and closed-loop dynamics of the plants that ensure existence of purely time-dependent periodic scheduling sequences under which stability of each plant is preserved for all admissible data loss signals. Second, given the open-loop and closed-loop dynamics of the plants, relevant parameters of the shared network and a period for the scheduling sequence, we present an algorithm that verifies our stability conditions and if satisfied, designs stabilizing scheduling sequences. Otherwise, the algorithm reports non-existence of a stabilizing periodic scheduling sequence with the given period and stability margins. Third, given the plant matrices, the parameters of the network and a period for the scheduling sequence, we present an algorithm that designs static state-feedback controllers such that our stability conditions are satisfied. The main apparatus for our analysis is a switched systems representation of the individual plants in an NCS whose switching signals are time-inhomogeneous Markov chains. Our stability conditions rely on the existence of sets of symmetric and positive definite matrices that satisfy certain (in)equalities.", "revisions": [ { "version": "v1", "updated": "2020-10-16T15:20:43.000Z" } ], "analyses": { "keywords": [ "random data loss", "time-dependent periodic scheduling sequences", "networked systems", "stability conditions", "designs static state-feedback controllers" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }