Research

Multi-user wireless networked control systems: A systematic design framework

FONDECYT postdoctoral project funded by Agencia Nacional de Investigación y Desarrollo (ANID)

Grant number: 3230056 | Funding period: 2023-2026

Investigators: Alejandro I. Maass (IR)

Collaborators: Juan Yuz, Francisco Vargas, Andres Peters

Summary: Recent advances in wireless technology are changing the way control systems interact with physical processes whilst enabling new application domains such as Cyber Physical Systems and Industrial Internet of Things (IIoT). Wireless networked control systems (WNCSs) are composed of spatially distributed sensors, actuators, and controllers communicating via wireless networks rather than point-to-point wired connections. WNCSs are increasingly used in a range of IIoT application domains such as vehicle-to-vehicle (V2V) communication in automated highways and industrial control systems. WNCSs provide many benefits that make them a fundamental infrastructure technology for safety-critical control systems. However, the successful implementation of WNCSs requires a rigorous modelling and design with provable robustness and stability guarantees. 

This proposal focuses on multi-user WNCSs, in which multiple network nodes (users) have to contend for transmission access. An important application of these systems are wireless vehicle platoons, where not only the stochastic phenomena introduced by the wireless network is important, but also the increased complexity as the platoon grows in size, which is studied by the notion of string stability. We aim to provide string stability conditions of general wireless non-linear platoons in a stochastic setting, which has only been sparsely explored in the literature.