title: Network Adaptive Deadband: NCS data flow control for shared networks.
abstract: This paper proposes a new middleware solution called Network Adaptive Deadband (NAD) for long time operation of Networked Control Systems (NCS) through the Internet or any shared network based on IP technology. The proposed middleware takes into account the network status and the NCS status, to improve the global system performance and to share more effectively the network by several NCS and sensor/actuator data flows. Relationship between network status and NCS status is solved with a TCP-friendly transport flow control protocol and the deadband concept, relating deadband value and transmission throughput. This creates a deadband-based flow control solution. Simulation and experiments in shared networks show that the implemented network adaptive deadband has better performance than an optimal constant deadband solution in the same circumstances.
authors.affiliation: School of Computer Engineering, Computer Network Engineering, University of Vigo, 32004 Ourense, Spain. mcacho@uvigo.es
authors.forename: Miguel
authors.initials: M
authors.lastname: Díaz-Cacho
authors.forename: Emma
authors.initials: E
authors.lastname: Delgado
authors.forename: José A G
authors.initials: JA
authors.lastname: Prieto
authors.forename: Joaquín
authors.initials: J
authors.lastname: López
mesh_terms: D000465:Algorithms; D003195:Computer Communication Networks; D003198:Computer Simulation; D006801:Humans; D020407:Internet; D012815:Signal Processing, Computer-Assisted