Articole din publicaţii internaţionale: Recent submissions

  • Retransmission-based Available Bandwidth Estimation in IEEE 802.11-based Multihop Wireless Networks 
    VAN NAM, Nguyen; GUERIN-LASSOUS, Isabelle; MORARU, Victor; SARR, Cheikh (Association for Computing Machinery, New York, United States, 2011)
    Estimating the available bandwidth in IEEE 802.11-based multihop wireless networks is a very difficult task due to the medium sharing among contending nodes and collisions between hidden stations. Several methods have been ...
  • Making Networked Robots Connectivity-Aware 
    LE, Van Tuan; BOURAQADI, Noury; STINCKWICH, Serge; MORARU, Victor; DONIEC, Arnaud (IEEE, 2009)
    Multi-Robot Systems (MRSs) is a key issue in many robotic applications. In our view, the solution to this problem consists of two main steps: (i) making robots aware of the network connectivity; and (ii), making use of ...
  • Connectivity Awareness in Networked Robotic Systems 
    LE, Van Tuan; BOURAQADI, Noury; STINCKWICH, Serge; MORARU, Victor (IEEE, 2009)
    Maintaining the network connectivity in mobile multi-robot systems (MRSs) is a key issue in many robotics applications. In our view, the solution to this problem consists of two steps: (i) making robots aware of the network ...
  • Characterisation and Application of Idle Period Durations in IEEE 802.11 DCF-based Multihop Wireless Networks 
    NGUYEN, Van Nam; LASSOUS, Isabelle Guérin; MORARU, Victor; RAZAFINDRALAMBO, Tahiry (Association for Computing Machinery, New York, United States, 2012)
    Multihop wireless networks are used to provide internet connectivity to the users and the level of performance and quality expected by these users are increasing. In order to meet these performance and quality requirements, ...
  • Caractérisation des Périodes Libres dans les Réseaux 802.11 Multisauts 
    NGUYEN, Van Nam; GUÈRIN-LASSOUS, Isabelle; RAZAFINDRALAMBO, Tahiry M.; MORARU, Victor (HAL, 2012)
    Un certain nombre de travaux sur les r´eseaux 802.11 multisauts reposent sur des hypoth`eses sur les p´eriodes libres et occup´ees du m´edium radio. Dans ce travail, nous cherchons `a caract´eriser les dur´ees des p´eriodes ...
  • Using Domain Specific Hierarchical Good Practice for Ranking Service Compositions 
    MARGINEAN, Anca; LETIA, Ioan Alfred; ZAPOROJAN, Sergiu (IEEE, 2014)
    We propose a method for ranking the service compositions according to the good practice of each domain. Knowledge about good practice is modeled in a hierarchical manner inspired from Hierarchical Task Networks. In describing ...
  • Relaxarea semidefinită pentru problema echilibrării liniilor de asamblare 
    MORARU, Vasile; ZAPOROJAN, Sergiu (RoCHI ACM, România, 2013)
    Suportul decizional în organizarea optimă a activităţii unei întreprinderi are la bază anumite modele matematice, inclusiv de optimizare. In această lucrare se consideră problema echilibrării liniilor de asamblare cu numele ...
  • Monitorizarea procesului de fabricaţie a microfirelor 
    ZAPOROJAN, Sergiu; CALMÎCOV, Igor; PLOTNIC, Constantin; CĂRBUNE, Viorel (RoCHI ACM, România, 2013)
    Dat fiind rolul cheie al operatorului uman în unele sisteme tehnologice, o interfaţă greoaie nu îi afectează numai productivitatea, ci şi valoarea însăşi a activităţii. În lucrare este descrisă o aplicaţie inovativă utilizată ...
  • Early estimation of gain/loss in quality in designing the embedded systems 
    ZAPOROJAN, Sergiu; SECRIERU, Vitalie; DOROGAN, Valerian; MORARU, Vasile (IEEE, 2016)
    Embedded system design is subject to many constraints with strong influence on design objectives and architectures. Designers of embedded systems need to consider the desired functionality together with cost constraints, ...
  • Data-Based Technique for Extracting Knowledge from Data Generated in Experiments 
    ZAPOROJAN, Sergiu; CARBUNE, Viorel; CALMICOV, Igori (IEEE, 2020)
    Fuzzy sets are used in different fields and determination of the membership functions is one of the most important issues in the design of fuzzy systems. The paper presents an approach to that problem to provide solutions ...
  • Assisting drivers during overtaking using Car-2-Car communication and multi-agent systems 
    CARA, Calin; GROZA, Adrian; ZAPOROJAN, Sergiu; CALMICOV, Igor (IEEE, 2016)
    A warning system for assisting drivers during overtaking maneuvers is proposed. The system relies on Car-2-Car communication technologies and multi-agent systems. A protocol for safety overtaking is proposed based on ACL ...
  • Assessment of influence of systematic errors on the precision with which the normalized frequency of a sinusoidal signal is determined by means of a discrete fourier transformation with interpolation 
    BELEGA, D.; ZAPOROJAN, S. (Springer Nature Switzerland, 2009)
    The influence of systematic errors caused by the infleunce of the imaginary part in the spectrum of a sinusoidal signal on the estimator of its normalized frequency is analyzed by means of a discrete Fourier transformation ...
  • A Second Order-Cone Programming Relaxation for Facility Location Problem 
    MORARU, Vasile; ZAPOROJAN, Sergiu; GROZA, Adrian (IEEE, 2014)
    In this paper we discuss the numerical solving of one of the well known problems related to the production systems. Namely, it is about facility location problem, which is reformulated in terms of non-convex minimization ...
  • A Second Order-Cone Programming Formulation for Simple Assembly Line Balancing Problem 
    MORARU, Vasile; ZAPOROJAN, Sergiu (Lucian Blaga University Press, Sibiu, 2013)
    Decision support in order to assure an optimal business in the framework of a industrial company is based on some mathematical models, including optimization. The paper discusses the numerical solving of a task known as a ...
  • A model of programmable processors 
    ZAPOROJAN, Sergiu (Universitatea Politehnica, Bucureşti, 1997)
    Designers of electronic systems use more and more programmable processors in their systems. The programmability of processing units is considered as an efficient approach to support the increasing requirement on the functions ...
  • A formal approach for identifying assurance deficits in unmanned aerial vehicle software 
    GROZA, Adrian; LETIA, Ioan Alfred; GORON, Anca; ZAPOROJAN, Sergiu (Springer Nature Switzerland, 2015)
    While formal methods have proved to be unfeasible for large scale systems, argument-based safety cases offer a plausible alternative basis for certification of critical software. Our proposed method for increasing safety ...
  • A continuous reformulation of the quadratic unconstrained binary optimization problem 
    MORARU, Vasile; ZAPOROJAN, Sergiu (“Lucian Blaga” University, 2015)
    In this paper we consider the Quadratic Unconstrained Binary Optimization (QUBO) Problem. Using a suitable function and penalty parameter we can reformulate the original QUBO problem as a continuous program. It is shown ...
  • The geometry of fractional tangent bundle and applications 
    ALBU, Ion Doru; OPRIŞ, Dumitru (Geometry Balkan Press, 2009)
    The authors present the use of the revised fractional Riemann-Liouville derivative in the fractional tangent bundle of order k, TM ak, of a differential manifold M and the behavior of some objects under a change of local ...
  • The geometry of fractional osculator bundle of higher order and applications 
    ALBU, Ion Doru; NEAMŢU, Mihaela; OPRIŞ, Dumitru (Cornell University, 2007)
    Using the reviewed Riemann-Liouville fractional derivative we define the bundle Eak= Oscak(M) and highlight geometrical structures with a geometrical character. Also, we introduce the fractional osculator Lagrange space ...
  • The dynamical rigid body with memory 
    ALBU, Ion Doru; NEAMŢU, Mihaela; OPRIŞ, Dumitru (Cornell University, 2007)
    In the present paper we describe the dynamics of the revised rigid body, the dynamics of the rigid body with distributed delays and the dynamics of the fractional rigid body. We analyze the stationary states for given ...

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