Browsing by Subject "Control theory"

Now showing items 21-40 of 62

    • Conference Object  

      First passage risk-sensitive criterion for stochastic evolutions 

      Charalambous, Charalambos D.; Hibey, Joseph L. (1995)
      The purpose of this paper is to investigate in an infinite dimensional space, the first passage problem with a risk-sensitive performance criterion, and to illustrate the asymptotic behavior of the associated value function, ...
    • Conference Object  

      Infinite horizon average cost dynamic programming subject to ambiguity on conditional distribution 

      Tzortzis, I.; Charalambous, Charalambos D.; Charalambous, T. (Institute of Electrical and Electronics Engineers Inc., 2015)
      This paper addresses the optimality of stochastic control strategies based on the infinite horizon average cost criterion, subject to total variation distance ambiguity on the conditional distribution of the controlled ...
    • Conference Object  

      Information structures of capacity achieving distribution for channels with memory and feedback 

      Kourtellaris, C. K.; Charalambous, Charalambos D. (Institute of Electrical and Electronics Engineers Inc., 2016)
      The information structures of the optimal channel input distributions P[0,n] t {PAi|Ai-1,Bi-1 : i = 0,1.,n}, which correspond to the extremum problem of feedback capacity equation are identified, for any class of channel ...
    • Article  

      Information theoretic bounds for compound MIMO Gaussian channels 

      Denic, S. Z.; Charalambous, Charalambos D.; Djouadi, S. M. (2009)
      In this paper, achievable rates for compound Gaussian multiple-input-multiple-output (MIMO) channels are derived. Two types of channels, modeled in the frequency domain, are considered when: 1) the channel frequency response ...
    • Article  

      Information Transfer of Control Strategies: Dualities of Stochastic Optimal Control Theory and Feedback Capacity of Information Theory 

      Charalambous, Charalambos D.; Kourtellaris, C. K.; Tzortzis, I. (2017)
      The control-coding capacity of stochastic control systems is introduced, and its operational meaning is established using randomized control strategies, which simultaneously control output processes encode information, and ...
    • Conference Object  

      Integrated control of connection admission, flow rate, and bandwidth for ATM based networks 

      Pitsillides, Andreas; Ioannou, Petros A.; Tipper, David (1996)
      We consider the combined control problem of connection admission, flow rate, and bandwidth allocation (capacity, service-rate) under nonstationary conditions. A fluid flow model in state variable form describes the time ...
    • Conference Object  

      Integrated control of connection admission, flow rate, and bandwidth for ATM based networksAAA 

      Pitsillides, Andreas; Ioannou, Petros A.; Tipper, David (1996)
      We consider the combined control problem of connection admission, flow rate, and bandwidth allocation (capacity, service-rate) under nonstationary conditions. A fluid flow model in state variable form describes the time ...
    • Conference Object  

      Linear iterative strategies for transmitting streams of values through sensor networks 

      Sundaram, S.; Hadjicostis, Christoforos N. (2009)
      For any given fixed network of interconnected nodes, with some nodes designated as sources and some nodes designated as sinks, we investigate the problem of transmitting a stream of values from every source node to all of ...
    • Article  

      LQG optimality and separation principle for general discrete time partially observed stochastic systems over finite capacity communication channels 

      Charalambous, Charalambos D.; Farhadi, A. (2008)
      This paper is concerned with control of stochastic systems subject to finite communication channel capacity. Necessary conditions for reconstruction and stability of system outputs are derived using the Information ...
    • Article  

      Macroscopic analysis of traffic flow of automated vehicles 

      Raza, H.; Ioannou, Petros A. (1997)
      In the first part of this study a macroscopic traffic flow model of automated vehicles is developed by using the microscopic control laws that govern the longitudinal motion of individual vehicles together with the dynamics ...
    • Conference Object  

      Minimizing outage probability for a class of MIMO channels 

      Charalambous, Charalambos D.; Ioannou, I. (2009)
      In this paper we investigate the outage probability of Multiple-Input Multiple-Output (MIMO) channels, when the probability distribution of the channel gains is not completely known to the transmitter and receiver. The ...
    • Article  

      Model Reference Adaptive Control for Plants with Unknown Relative Degree 

      Ioannou, Petros A.; Tao, G. (1993)
      One of the basic assumptions in stable model reference adaptive control (MRAC) that the relative degree n002A of the modeled part of the plant is known exactly and matches that of the reference model is relaxed by the ...
    • Conference Object  

      Modeling and control design for a computer controlled brake system 

      Raza, H.; Xu, Z.; Yang, B.; Ioannou, Petros A. (IEEE, 1996)
      In this paper we consider the problem of modeling and control of a computer controlled brake system. The brake model is developed using a series of experiments conducted on a test bench which contains the full scale brake ...
    • Conference Object  

      Multiple model adaptive control with mixing: A pedagogical example 

      Kuipers, M.; Ioannou, Petros A. (2008)
      We apply the adaptive mixing control approach to a simple example, presenting concepts of the design and analysis of these schemes in a pedagogical manner. Unique to deterministic multiple model adaptive control schemes, ...
    • Conference Object  

      Necessary conditions for partially observed diffusions 

      Charalambous, Charalambos D.; Hibey, Joseph L. (IEEE, 1993)
      We present a new approach to deriving necessary conditions for stochastic partially observed control problems when the control enters the drift coefficient, and correlation between signal and observation noise is allowed. ...
    • Conference Object  

      On delayed observers for linear systems with unknown inputs 

      Sundaram, S.; Hadjicostis, Christoforos N. (2005)
      We present a method for constructing reduced-order state observers for linear systems with unknown inputs. Our design provides a characterization of observers with delay, which eases the established necessary conditions ...
    • Conference Object  

      On the complexity of asynchronous gossip 

      Georgiou, Chryssis; Gilbert, S.; Guerraoui, R.; Kowalski, D. R. (2008)
      In this paper, we study the complexity of gossip in an asynchronous, message-passing fault-prone distributed system. In short, we show that an adaptive adversary can significantly hamper the spreading of a rumor, while an ...
    • Article  

      Partial state observers for linear systems with unknown inputs 

      Sundaram, S.; Hadjicostis, Christoforos N. (2008)
      We consider the problem of constructing partial state observers for discrete-time linear systems with unknown inputs. Specifically, for any given system, we develop a design procedure that characterizes the set of all ...
    • Conference Object  

      Performance analysis for a changepoint problem 

      Hibey, Joseph L.; Charalambous, Charalambos D. (IEEE, 1997)
      Nonlinear stochastic differential equations are used to model a version of the changepoint problem. State estimates of the minimum-mean-square-error type are used in likelihood-ratio tests to detect the time of change. We ...
    • Conference Object  

      Practical robust adaptive control: Benchmark example 

      Kuipers, M.; Ioannou, Petros A. (2008)
      A novel disturbance rejection solution for a benchmark mass-spring-damper (MSD) system is presented. The proposed design, adaptive mixing control (AMC,) is a deterministic multiple model adaptive control (MMAC) approach ...