Browsing by Subject "Data communication systems"

Now showing items 1-18 of 18

    • Conference Object  

      The capacity of unstable dynamical systems-interaction of control and information transmission 

      Charalambous, Charalambos D.; Kourtellaris, C. K.; Loyka, S.; Tzortzis, I. (Institute of Electrical and Electronics Engineers Inc., 2017)
      Feedback capacity is extended beyond classical communication channels, to stochastic dynamical systems, which may correspond to unstable control systems or unstable communication channels, subject to average cost constraints ...
    • Conference Object  

      Contention in balancing networks resolved 

      Hadjimitsis, Leonidas; Mavronicolas, Marios (ACM, 1998)
      Counting networks have been originally presented by Aspnes et al. as a new class of distributed/coordinated data structures suitable for solving many fundamental, multi-processor coordination problems that can be expressed ...
    • Conference Object  

      Coordination of systems with real-time properties in manifold 

      Papadopoulos, George Angelos; Arbab, Farhad (IEEE, 1996)
      This paper combines work done in the areas of asynchronous timed computations and coordination models in order to derive a framework able to express real-time coordination without adhering to special architectures or ...
    • Conference Object  

      Encoder-decoder design for perfect reconstruction: A robust control perspective 

      Voulgaris, P. G.; Hadjicostis, Christoforos N.; Touri, R. (2005)
      In this paper we consider the transmission of discrete data via a communication channel that is subject to (additive) noise with a known upper bound on its magnitude but otherwise completely unknown. We are interested in ...
    • Conference Object  

      FAST: a functional algorithm simulation testbed 

      Dikaiakos, Marios D.; Rogers, Anne; Steiglitz, Kenneth (Publ by IEEE, 1994)
      In this paper we extend the practical range of simulations of parallel executions by what we call 'functional algorithm simulation,' that is, simulation without actually performing most of the numerical computations involved. ...
    • Article  

      Functional algorithm simulation of the fast multipole method: Architectural implications 

      Dikaiakos, Marios D. (1996)
      Functional Algorithm Simulation in a methodology for predicting the computation and communication characteristics of parallel algorithms for a class of scientific problems, without actually performing the expensive numerical ...
    • Conference Object  

      Is robustness of stochastic uncertain systems related to information theory and statistical mechanics? 

      Charalambous, Charalambos D.; Kyprianou, Andreas (2005)
      Fifty years ago, when Claude Shannon was developing the Mathematical Theory of Communications, for reliable data transmission, which evolved into the subject of information theory, another discipline was developing dealing ...
    • Conference Object  

      Is robustness of stochastic uncertain systems related to information theory and statistical mechanics? 

      Charalambous, Charalambos D.; Kyprianou, Andreas (Affiliation: Department of Electrical and Computer Engineering, University of Cyprus, Nicosia, CyprusAffiliation: Department of Mechanical and Manufacturing Engineering, University of Cyprus, Nicosia, CyprusAffiliation: School of Information Technology and Engineering, University of Ottawa, 161 Louis Pasteur, A519, Ottawa, Ont. K1N 6N5, CanadaCorrespondence Address: Charalambous, C.D.Department of Electrical and Computer Engineering, University of Cyprus, Nicosia, Cyprusemail: chadcha@ucy.ac.cy, 2005)
      Fifty years ago, when Claude Shannon was developing the Mathematical Theory of Communications, for reliable data transmission, which evolved into the subject of information theory, another discipline was developing dealing ...
    • Conference Object  

      Is robustness of stochastic uncertain systems related to information theory and statistical mechanics? 

      Charalambous, C. D.; Kyprianou, Andreas (Affiliation: Department of Electrical and Computer Engineering, University of Cyprus, Nicosia, CyprusAffiliation: Department of Mechanical and Manufacturing Engineering, University of Cyprus, Nicosia, CyprusAffiliation: School of Information Technology and Engineering, University of Ottawa, 161 Louis Pasteur, A519, Ottawa, Ont. K1N 6N5, CanadaCorrespondence Address: Charalambous, C.D.Department of Electrical and Computer Engineering, University of Cyprus, Nicosia, Cyprusemail: chadcha@ucy.ac.cy, 2005)
      Fifty years ago, when Claude Shannon was developing the Mathematical Theory of Communications, for reliable data transmission, which evolved into the subject of information theory, another discipline was developing dealing ...
    • Conference Object  

      A local search mechanism for peer-to-peer networks 

      Kalogeraki, Vana; Gunopulos, Dimitrios; Zeinalipour-Yazdi, Constantinos D. (2002)
      One important problem in peer-to-peer (P2P) networks is searching and retrieving the correct information. However, existing searching mechanisms in pure peer-to-peer networks are inefficient due to the decentralized nature ...
    • Article  

      Mobile agents for wireless computing: The convergence of wireless computational models with mobile-agent technologies 

      Spyrou, Christiana; Samaras, George S.; Pitoura, Evaggelia 1967-; Evripidou, Paraskevas (2004)
      Wireless mobile computing breaks the stationary barrier and allows users to compute and access information from anywhere and at anytime. However, this new freedom of movement does not come without new challenges. The mobile ...
    • Article  

      MPI-FT: Portable fault tolerance scheme for MPI 

      Louca, Soulla P.; Neophytou, Neophytos; Lachanas, Adrianos; Evripidou, Paraskevas (2000)
      In this paper, we propose the design and development of a fault tolerant and recovery scheme for the Message Passing Interface (MPI). The proposed scheme consists of a detection mechanism for detecting process failures, ...
    • Conference Object  

      On the role of feedback in the design of perfectly reconstructing equalizers 

      Touri, R.; Voulgaris, P. G.; Hadjicostis, Christoforos N. (2007)
      In this paper we consider the transmission of discrete data via a communication channel that is subject to (additive) noise with a known upper bound on its magnitude but otherwise completely unrestricted behavior. We are ...
    • Conference Object  

      Optimal preprocessing strategies for perfect reconstruction of binary signals under power-constrained transmission 

      Voulgaris, P. G.; Hadjicostis, Christoforos N. (2004)
      In this paper we further explore our deterministic worst-case framework for perfect reconstruction of discrete data transmissions through dispersive communication channels. Specifically, we are concerned with perfect ...
    • Conference Object  

      Performance study of cosmological simulations on message-passing and shared-memory multiprocessors 

      Dikaiakos, Marios D.; Stadel, Joachim (ACM, 1996)
      In this paper we describe PKDGRAV, a parallel hierarchical tree-structured code used to conduct cosmological simulations on shared-memory and message-passing multiprocessors. We explore performance traits of cosmological ...
    • Article  

      Stabilisation with feedback control utilising packet-dropping network links 

      Touri, R.; Hadjicostis, Christoforos N. (2007)
      The possibility of using networks, such as the Internet, for data transmission between physically distributed sensors and actuators in a system gives rise to several new challenges in control design. An approach is discussed ...
    • Conference Object  

      TDM- vs. FDM- based data-item scheduling in wireless broadcast systems with user retrials 

      Vlajic, N.; Charalambous, Charalambos D.; Makrakis, D. (2003)
      In the previous research works on wireless data broadcast, time-division-multiplex (TDM) based data-item scheduling has been exclusively studied, while no mention or clear evidence against frequency-division-multiplex, ...
    • Conference Object  

      Time-varying power-limited preprocessing for perfect reconstruction of binary signals 

      Touri, R.; Voulgaris, P. G.; Hadjicostis, Christoforos N. (2006)
      In this paper we consider a deterministic worst-case framework for perfect reconstruction of discrete data transmission through a dispersive communication channel. More specifically, we extend our previous work to capture ...