Feedback optimization is a control paradigm for optimizing dynamical systems at steady-state. Existing methods rely on centralized architectures, limiting scalability and pri- vacy in large-scale systems. We propose a distributed feedback optimization approach inspired by the Distributed Gradient Descent method, where each agent updates its control variable using local gradients and average of neighbors. Under convexity and smoothness assumptions, we establish convergence to a crit- ical optimization point, and under restricted strong convexity, we prove linear convergence to a neighborhood of the optimum, with its size dependent on the stepsize. Simulations corroborate the theoretical results
Mehrnoosh, A., & Bianchin, G. (2025). Optimization of Linear Multi-Agent Dynamical Systems via Feedback Distributed Gradient Descent Methods. IEEE Xplore. Published. 2025 American Control Conference (ACC), Denver, CO, USA. https://doi.org/10.23919/acc63710.2025.11107569