Distributed optimization with gradient descent and quantized communication

AI Rikos, W Jiang, T Charalambous, KH Johansson - IFAC-PapersOnLine, 2023 - Elsevier
In this paper, we consider the unconstrained distributed optimization problem, in which the
exchange of information in the network is captured by a directed graph topology, thus, nodes …

Differential communication with distributed MPC based on occupancy grid

T Sprodowski, MW Mehrez, K Worthmann, GKI Mann… - Information …, 2018 - Elsevier
Abstract We introduce a Distributed Model Predictive Control (DMPC) algorithm, which is
based on the novel idea of projecting predicted trajectories on a quantised spatial set to …

Real-time distributed MPC for multiple underwater vehicles with limited communication data-rates

Y Yang, Y Wang, C Manzie, Y Pu - 2021 American Control …, 2021 - ieeexplore.ieee.org
Controlling a fleet of autonomous underwater vehicles can be challenging due to low data-
rate communication between agents. This paper proposes a real-time framework with an …

[PDF][PDF] Distributed Optimization with Quantized Gradient Descent

AI Rikos, W Jiang, T Charalambous… - arXiv preprint arXiv …, 2022 - researchgate.net
In this paper, we consider the unconstrained distributed optimization problem, in which the
exchange of information in the network is captured by a directed graph topology, and thus …

Inexact alternating minimization algorithm for distributed optimization with an application to distributed mpc

Y Pu, CN Jones, MN Zeilinger - arXiv preprint arXiv:1608.00413, 2016 - arxiv.org
In this paper, we propose the inexact alternating minimization algorithm (inexact AMA),
which allows inexact iterations in the algorithm, and its accelerated variant, called the …

Analytical aspects of distributed MPC based on an occupancy grid for mobile robots

T Sprodowski, J Pannek - Applied Sciences, 2020 - mdpi.com
In this paper, we evaluate theoretical aspects of a distributed system of noncooperative
robots controlled by a distributed model predictive control scheme, which operates in a …

Connection between quantisation and bandwidth requirements of distributed model predictive control

T Sprodowski, JK Sagawa, J Pannek - IFAC-PapersOnLine, 2017 - Elsevier
Many distributed systems rely on communication as a necessary condition to steer the
overall system to a reference or target state, which may lead to a large bandwidth …

Collision avoidance for mobile robots based on an Occupancy Grid

T Sprodowski - Recent Advances in Model Predictive Control: Theory …, 2021 - Springer
Communication among distributed systems under the regime of a distributed model
predictive control scheme (DMPC), for example, mobile robots, is in many cases a …

Relaxed collision constraints based on interval superposition principle in a DMPC scheme

T Sprodowski, J Pannek - 2018 IEEE 24th International …, 2018 - ieeexplore.ieee.org
Within this paper, we consider a group of mobile robots in a shared operation space
controlled by a distributed model predictive control scheme, where each robot is assigned …

Splitting Methods for Distributed Optimization and Control

Y Pu - 2016 - infoscience.epfl.ch
This thesis contributes towards the design and analysis of fast and distributed optimization
algorithms based on splitting techniques, such as proximal gradient methods or alternation …