53 citations · 101 across the 22 of their papers we have counts for
24 papers
A Simulation Framework with Guaranteed Error Bounds for Safety and Fuel-Efficiency Analysis of Vehicle Platoons
Yuhao Chen, Ahmet Cetinkaya
Vehicle platooning is an important technology in modern transportation systems, offering significant improvements in highway traffic efficiency and fuel economy. Achieving coordina…
CAR-Net: A Cascade Refinement Network for Rotational Motion Deblurring under Angle Information Uncertainty
Ka Chung Lai, Ahmet Cetinkaya
We propose a new neural network architecture called CAR-net (CAscade Refinement Network) to deblur images that are subject to rotational motion blur. Our architecture is specifical…
Nonuniform-Grid Markov Chain Approximation of Continuous Processes with Time-Linear Moments
Do Hyun Kim, Ahmet Cetinkaya
We propose a method to approximate continuous-time, continuous-state stochastic processes by a discrete-time Markov chain defined on a nonuniform grid. Our method provides exact mo…
Cluster Forming of Multiagent Systems in Rolling Horizon Games with Non-uniform Horizons
Yurid Nugraha, Ahmet Cetinkaya, Tomohisa Hayakawa +2
Consensus and cluster forming of multiagent systems in the face of jamming attacks along with reactive recovery actions by a defender are discussed. The attacker is capable to disa…
A Rolling Horizon Game Considering Network Effect in Cluster Forming for Dynamic Resilient Multiagent Systems
Yurid Nugraha, Ahmet Cetinkaya, Tomohisa Hayakawa +2
A two-player game-theoretic problem on resilient graphs in a multiagent consensus setting is formulated. An attacker is capable to disable some of the edges of the network with the…
Two-Player Incomplete Games of Resilient Multiagent Systems
Yurid Nugraha, Tomohisa Hayakawa, Hideaki Ishii +2
Evolution of agents' dynamics of multiagent systems under consensus protocol in the face of jamming attacks is discussed, where centralized parties are able to influence the contro…
Does Road Diversity Really Matter in Testing Automated Driving Systems? -- A Registered Report
Stefan Klikovits, Vincenzo Riccio, Ezequiel Castellano +3
Background/Context. The use of automated driving systems (ADSs) in the real world requires rigorous testing to ensure safety. To increase trust, ADSs should be tested on a large se…
Moment Propagation of Polynomial Systems Through Carleman Linearization for Probabilistic Safety Analysis
Sasinee Pruekprasert, Jérémy Dubut, Toru Takisaka +2
We develop a method to approximate the moments of a discrete-time stochastic polynomial system. Our method is built upon Carleman linearization with truncation. Specifically, we ta…
Instabilizability Conditions for Continuous-Time Stochastic Systems Under Control Input Constraints
Ahmet Cetinkaya, Masako Kishida
In this paper, we investigate constrained control of continuous-time linear stochastic systems. We show that for certain system parameter settings, constrained control policies can…
Linearization-Based Quantized Stabilization of Nonlinear Systems Under DoS Attacks
Rui Kato, Ahmet Cetinkaya, Hideaki Ishii
Motivated by recent security issues in cyber-physical systems, this technical note studies the stabilization problem of networked control systems under Denial-of-Service (DoS) atta…
Dynamic Resilient Network Games with Applications to Multi-Agent Consensus
Yurid Nugraha, Ahmet Cetinkaya, Tomohisa Hayakawa +2
A cyber security problem in a networked system formulated as a resilient graph problem based on a game-theoretic approach is considered. The connectivity of the underlying graph of…
Moment Propagation of Discrete-Time Stochastic Polynomial Systems using Truncated Carleman Linearization
Sasinee Pruekprasert, Toru Takisaka, Clovis Eberhart +2
We propose a method to compute an approximation of the moments of a discrete-time stochastic polynomial system. We use the Carleman linearization technique to transform this finite…
Data Rates for Stabilizing Control under Denial-of-Service Attacks
Shuai Feng, Ahmet Cetinkaya, Hideaki Ishii +2
We study communication-constrained networked control problems for linear time-invariant systems in the presence of Denial-of-Service (DoS) attacks, namely attacks that prevent tran…
Stabilizing Unstable Periodic Orbits with Delayed Feedback Control in Act-and-Wait Fashion
Ahmet Cetinkaya, Tomohisa Hayakawa, Mohd Amir Fikri bin Mohd Taib
A delayed feedback control framework for stabilizing unstable periodic orbits of linear periodic time-varying systems is proposed. In this framework, act-and-wait approach is utili…
Effects of Jamming Attacks on Wireless Networked Control Systems Under Disturbance
Ahmet Cetinkaya, Hideaki Ishii, Tomohisa Hayakawa
Jamming attacks on wireless networked control systems are investigated for the scenarios where the system dynamics face exogenous disturbance. In particular, the control input pack…
Randomized Transmission Protocols for Protection against Jamming Attacks in Multi-Agent Consensus
Ahmet Cetinkaya, Kaito Kikuchi, Tomohisa Hayakawa +1
Multi-agent consensus under jamming attacks is investigated. Specifically, inter-agent communications over a network are assumed to fail at certain times due to jamming of transmis…
A Probabilistic Characterization of Random and Malicious Communication Failures in Multi-Hop Networked Control
Ahmet Cetinkaya, Hideaki Ishii, Tomohisa Hayakawa
The control problem of a linear discrete-time dynamical system over a multi-hop network is explored. The network is assumed to be subject to packet drops by malicious and nonmalici…
Stabilization of Networked Control Systems under DoS Attacks and Output Quantization
Masashi Wakaiki, Ahmet Cetinkaya, Hideaki Ishii
This paper addresses quantized output feedback stabilization under Denial-of-Service (DoS) attacks. First, assuming that the duration and frequency of DoS attacks are averagely bou…
Analysis of Stochastic Switched Systems with Application to Networked Control Under Jamming Attacks
Ahmet Cetinkaya, Hideaki Ishii, Tomohisa Hayakawa
We investigate the stability problem for discrete-time stochastic switched linear systems under the specific scenarios where information about the switching patterns and the probab…
Networked Control under Random and Malicious Packet Losses
Ahmet Cetinkaya, Hideaki Ishii, Tomohisa Hayakawa
We study cyber security issues in networked control of a linear dynamical system. Specifically, the dynamical system and the controller are assumed to be connected through a commun…
State feedback control of Markov jump linear systems with hidden-Markov mode observation
Masaki Ogura, Ahmet Cetinkaya, Tomohisa Hayakawa +1
In this paper, we study state-feedback control of Markov jump linear systems with partial information. In particular, we assume that the controller can only access the mode signals…
Event-Triggered Control over Unreliable Networks Subject to Jamming Attacks
Ahmet Cetinkaya, Hideaki Ishii, Tomohisa Hayakawa
Event-triggered networked control of a linear dynamical system is investigated. Specifically, the dynamical system and the controller are assumed to be connected through a communic…
State-feedback stabilization of Markov jump linear systems with randomly observed Markov states
Masaki Ogura, Ahmet Cetinkaya
In this paper we study the state-feedback stabilization of a discrete-time Markov jump linear system when the observation of the Markov chain of the system, called the Markov state…
Feedback Control of Switched Stochastic Systems Using Randomly Available Active Mode Information
Ahmet Cetinkaya, Tomohisa Hayakawa
Almost sure asymptotic stabilization of a discrete-time switched stochastic system is investigated. Information on the active operation mode of the switched system is assumed to be…