Asynchronous distributed localization in networks with communication delays and packet losses

Automatica ◽  
2018 ◽  
Vol 96 ◽  
pp. 134-140 ◽  
Author(s):  
Xu-Zhou Huang ◽  
Yu-Ping Tian
Keyword(s):  
Communication Delays ◽  
Packet Losses

scholarly journals Real-time neural control of all-terrain tracked robots with unknown dynamics and network communication delays

2020 ◽  
Vol 21 (3) ◽  
pp. 1-12
Author(s):  
Alma Y. Alanis ◽  
Jorge D. Rios ◽  
Nancy Arana-Daniel ◽  
Carlos Lopez-Franco
Keyword(s):  
Real Time ◽  
Neural Control ◽  
Actuator Saturation ◽  
Cyber Physical Systems ◽  
Communication Delays ◽  
Packet Losses ◽  
Physical Systems ◽  
Intelligent Controller ◽  
High Order Neural Network ◽  
Robot Platform

This work focuses on the design of an intelligent controller that is a considerably large challenge for cyber-physical systems. The proposed controller can deal with unknown dynamics, actuator saturation, unknown external and internal disturbances, unknown communication delays and packet losses. Such a controller is designed using a discrete-time approach based on inverse optimal control and a recurrent high-order neural network identifier. The applicability of the proposed scheme is shown through real-time results using a tracked robot platform controlled through a wireless network under different network scenarios.

scholarly journals Consensus of Multiagent Systems with Packet Losses and Communication Delays Using a Novel Control Protocol

2014 ◽  
Vol 2014 ◽  
pp. 1-13 ◽  
Author(s):  
Zheping Yan ◽  
Di Wu ◽  
Wei Zhang ◽  
Yibo Liu
Keyword(s):  
Spanning Tree ◽  
Multiagent System ◽  
Matrix Theory ◽  
High Order ◽  
Communication Delays ◽  
Packet Losses ◽  
Control Protocol ◽  
Directed Spanning Tree ◽  
Communication Topology ◽  
Double Integrator

This paper studies the consensus problem of multiagent system with packet losses and communication delays under directed communication channels. Different from previous research results, a novel control protocol is proposed depending only on periodic sampling and transmitting data in order to be convenient for practical implementation. Due to the randomicity of transmission delays and packet losses, each agent updates its input value asynchronously at discrete time instants with synchronized time stamped information and evolves in continuous time. Consensus conditions for multiagent system consists of three typical dynamics including single integrator, double integrator, and high-order integrator that are all discussed in this paper. It is proved that, for single integrator agents and double integrator systems with only communication delays, consensusability can be ensured through stochastic matrix theory if the designed communication topology contains a directed spanning tree. While, for double integrator agents and high-order integrator agents with packet losses and communication delays, the interval system theory is introduced to prove the consensus of multiagent system under the condition that the designed communication topology is a directed spanning tree. Finally, simulations are carried out to validate the effectiveness of the proposed solutions.

scholarly journals Event-Triggered Control for Multiagent Systems with the Problem of Packet Losses and Communication Delays When Using the Second-Order Neighbors’ Information

2014 ◽  
Vol 2014 ◽  
pp. 1-10
Author(s):  
Chuan Yan ◽  
Mei Yu ◽  
Guangming Xie ◽  
Yu Liu
Keyword(s):  
Multiagent Systems ◽  
Discrete Time ◽  
Second Order ◽  
Communication Link ◽  
Communication Delays ◽  
Sampled Data ◽  
Packet Losses ◽  
Control Laws ◽  
Data Framework ◽  
Event Triggered

This paper mainly investigates the event-triggered control for discrete-time multiagent systems with the problem of packet losses and communication delays when both the first-order and the second-order neighbors’ information are used. Event-triggered control laws are adopted so as to reduce the frequency of individual actuation updating under the sampled-data framework for discrete-time agent dynamics. The communication graph is undirected and the loss of data across each communication link occurs at certain probability, which is governed by a Bernoulli process. It is found that the distributed consensus speeds up by using the second-order neighbors’ information when packet losses and communication delays occur. Numerical examples are given to demonstrate the effectiveness of the proposed methods.

Scheduling 2-dimensional grids with large communication delays

2015 ◽  
Vol 49 (2) ◽  
pp. 369-381
Author(s):  
E.M. Daoudi ◽  
D. Trystram ◽  
F. Wagner
Keyword(s):  
Communication Delays
Sign in / Sign up

Export Citation Format

Share Document