We propose a dynamic output-feedback compensator for time-stamped Networked Control Systems (NCS). The design methodology is based on the use of a polytopic with additive norm-bounded representation for the NCS. The dynamics of the proposed compensator depends on the delays induced by the network, which are supposed not to be greater than the sampling period and possible to compute from the inf...

Modern control systems widely use network to decrease the implementation cost and also increase the performance. Although they have several advantages, they suffer from some limitations and deficiencies. Packet loss is one of the main limitations which affect the control system in different conditions and finally can lead to system instability. To prevent such problems it is important to model ...

Distributed Hash Tables (DHTs) may suffer from a high lookup latency due to the issue of topology mismatching between the overlay and the physical underlying network. To handle this problem, recently, some researchers use network coordinates (NCs) to construct topology-aware DHTs(e.g. Canary). However, these proposed DHTs still have room to be improved due to the inaccuracy of NCs. To construct...

The switched model predictive control (MPC) strategy is investigated in this paper for a class of networked control systems (NCSs) with time delays and packet disordering. A new model is proposed to describe the NCS with packet disordering. State feedback controllers are considered and the resulting closed-loop NCS is modeled as a discrete-time switched system. By using the average dwell-time a...

The Networked Control Systems (NCS) are complex systems which integrate information provided by several domians such as automatic control, computer science, communication network. The work presented in this paper concerns fault detection, isolation and compensation of communication network. The proposed method is based on the classical approach of Fault Detection and Isolation and Fault Toleran...

DNA hypermethylation is a common epigenetic abnormality in colorectal cancers (CRCs) and a promising class of CRC screening biomarkers. We conducted a genome-wide search for novel neoplasia-specific hypermethylation events in the colon. We applied methylation microarray analysis to identify loci hypermethylated in 17 primary CRCs relative to eight non-neoplastic colonic mucosae (NCs) from neopl...

In remote Networked Control Systems (NCSs) the system setup depends on the driven mode for each network node, such as time-driven or event-driven. In this paper, based on the NCS with a special kind of network delay, the general formulae of system models are deduced for different cases, in which the sensor adopts the time-driven mode, with the controller and the actuator using either the time-d...

Networked Control Systems (NCSs) are one type of distributed control systems where sensors, actuators controllers are interconnected by communication networks. In this paper the NCS and its simulations are discussed. The beginning of this paper discusses the NCS and control and communication challenges in NCS. The next part of this paper discusses the simulation of NCS using different simulator...

This paper presents a new TCP protocol called TCPPuerto-Londero, which makes dynamic tuning in the congestion window (cwnd) by means of adaptive control theory aiming to keep stable and small queue length bottleneck link located on path from source destination. loop has relative delay forward measured as an input cwnd value output. Thus, unlike classic protocols, TCP-Puerto-Londero does not use...

Title of dissertation: Access Scheduling and Controller Design in Networked Control Systems Lei Zhang, Doctor of Philosophy, 2005 Dissertation directed by: Assistant Professor Dimitrios Hristu-Varsakelis Department of Mechanical Engineering A Networked Control System (NCS) is a control system in which the sensors and actuators are connected to a feedback controller via a shared communication me...