Now showing items 104-123 of 229

  • [2012-03-24] A Learning Algorithm for Applying Cohen's Models to System Identification 

    Abdallah, Chaouki T.; Howes, James W.; Heileman, Gregory L.
    Abstract In this paper we extend the models discussed by Cohen (1992) by introducing an input term. This allows the resulting models to be utilized for system identification tasks. We prove that this model is stable in the ...
  • [2012-03-29] Least squares support vector machines for direction of arrival estimation 

    Abdallah, Chaouki T.; Rohwer, Judd A.; Christodoulou, Christos G.
    Machine learning research has largely been devoted to binary and multiclass problems relating to data mining, text categorization, and pattern/facial recognition. Recently, popular machine learning algorithms, including ...
  • [2012-03-29] Least squares support vector machines for direction of arrival estimation with error control and validation 

    Abdallah, Chaouki T.; Rohwer, Judd A.; Christodoulou, Christos G.
    The paper presents a multiclass, multilabel implementation of least squares support vector machines (LS-SVM) for direction of arrival (DOA) estimation in a CDMA system. For any estimation or classification system, the ...
  • [2012-03-29] Least squares support vector machines for DOA estimation with classification error control 

    Abdallah, Chaouki T.; Hayajneh, M.
    We consider a game-theoretic power control algorithm in interference limited fading channels, where we propose a distributed (non-cooperative) algorithm to optimize the induced fading outage probability by maximizing the ...
  • [2012-03-29] Least squares support vector machines for fixed-step and fixed-set CDMA power control 

    Abdallah, Chaouki T.; Rohwer, Judd A.; Christodoulou, Christos G.
    This paper presents two machine learning based algorithms for CDMA power control. The least squares support vector machine (LS-SVM) algorithms classify eigenvalues estimates into sets of power control commands. A binary ...
  • [2012-03-27] LINEAR ALGEBRA & MATRICES 

    Abdallah, Chaouki T.; Ariola, M.; Amato, F.
  • [2012-04-12] Linear-quadratic simultaneous performance design 

    Abdallah, Chaouki T.; Luke, Robert A.; Dorato, Peter
    In this paper the problem of designing a fixed state feedback control law which minimizes an upper bound on linear-quadratic performance measures for m distinct plants is reduced to a convex programming problem.
  • [2012-03-27] Load balancing in the presence of random node failure and recovery 

    Abdallah, Chaouki T.; Dhakal, Sagar; Hayat, Majeed M.; Pezoa, Jorge E.; Birdwell, J. Doug; Chiasson, John
    In many distributed computing systems that are prone to either induced or spontaneous node failures, the number of available computing resources is dynamically changing in a random fashion. A load-balancing (LB) policy for ...
  • [2012-03-30] Load balancing instabilities due to time delays in parallel computation 

    Abdallah, Chaouki T.; Birdwell, J. Douglas; Chiasson, John; Chupryna, Victor; Tang, Zhong; Wang, Tsewei
    A deterministic dynamic linear time-delay model is presented to model load balancing in a cluster of nodes used for parallel computations. The model is analyzed for stability in terms of the delays in the transfer of ...
  • [2012-04-24] Los Libertadores: Science and Technology Education in Latin America 

    Abdallah, Chaouki T.; Jordan, R.; Pollard, L. H.; Sanín, J.; Miskulin, M.; Franco, P.; De Giusti, M.
    The world has become dependent on information, technology, and telecommunications. Better known as Information Technology and Telecommunications (IT), a term that encompasses the fields of Electrical and Computer Engineering ...
  • [2012-04-12] LQ Robust Synthesis With Non-fragile Controllers: The Static State Feedback Case 

    Abdallah, Chaouki T.; Famularo, D.; Jadbabaie, A.; Dorato, Peter; Haddad, W. M.
    This paper describes the synthesis of Non-fragile or Resilient regulators for linear systems. The general framework for fragility is described using state space methodologies and the LQH static state feedback case is ...
  • [2012-03-29] Machine learning based CDMA power control 

    Abdallah, Chaouki T.; Rohwer, Judd A.; Christodoulou, Christos G.
    This paper presents binary and multiclass machine learning techniques for CDMA power control. The power control commands are based on estimates of the signal and noise subspace eigenvalues and the signal subspace dimension. ...
  • [2012-01-26] Managed Control of Composite Cloud Systems 

    Abdallah, Chaouki T.; Lamb, Christopher C.; Jamkhedkar, Pramod A.; Heileman, Gregory L.
    Cloud providers have just begun to provide primitive functionality enabling users to configure and easily provision resources, primarily in the infrastructure as a service domain. In order to effectively manage cloud ...
  • [2006-03-10] Markov Process Analysis of PCM Line Monitors 

    Foschini, Gerald; Salazar, Andres C.; Smith, James
  • [2012-03-27] Masters and Novices 

    Abdallah, Chaouki T.
    On 5–6 June 2005, the Electrical and Computer Engineering Department of the University of New Mexico organized a workshop to celebrate the career of Peter Dorato. The event was held at Los Poblanos Inn, an historic inn and ...
  • [2012-03-29] Microwave-propelled sails and their control 

    Abdallah, Chaouki T.; Chahine, E.; Schamiloglu, E.
    This paper presents the microwave-propelled sail, its structure, assumptions. We will present its equations of motion, then we will conduct stability analysis and we will design two controllers to make it asymptotically ...
  • [2012-03-24] A Mobile Transient Internet Architecture 

    Abdallah, Chaouki T.; Jerez, Henry N.; Khoury, Joud
    This paper describes a new architecture for transient mobile networks destined to merge existing and future network architectures, communication implementations and protocol operations by introducing a new paradigm to data ...
  • [2012-04-19] Model following using multilayer perceptrons 

    Abdallah, Chaouki T.; Hush, Don; Horne, B.
    A model following controller is proposed for discrete nonlinear systems using a recursive multilayer perceptron (MLP). The MLP network contains dynamics and is able to minimize the error between the plant and a desired ...
  • [2012-03-29] Model-based networked control for finite-time stability of nonlinear systems: the deterministic case 

    Abdallah, Chaouki T.
    In this paper we analyze model-based networked control systems for a discrete-time nonlinear plant model, operating in the presence of deterministic dropout of state observations. The dropout is modeled using communication ...
  • [2012-03-29] Model-based networked control for finite-time stability of nonlinear systems: the stochastic case 

    Abdallah, Chaouki T.; Mastellone, S.; Dorato, P.
    In this paper we analyze model-based networked control systems for a discrete-time nonlinear plant model, operating in the presence of stochastic dropout of state observations. The dropout is modeled as a Markov chain, and ...