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Proceedings 33rd Annual Simulation Symposium (SS 2000)

16-20 April 2000

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  • Proceedings 33rd Annual Simulation Symposium (SS 2000)

    Publication Year: 2000
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    Freely Available from IEEE
  • Author index

    Publication Year: 2000, Page(s): 338
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    Freely Available from IEEE
  • Dual neural network models in acoustic propagation

    Publication Year: 2000, Page(s):333 - 337
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (124 KB)

    This paper presents multiple neural-network models to mimic a nonlinear dynamic system. The multiple neural network models consist of one or more simplified time-varying functions to dynamically approximate the nature of the physical phenomena to be interpolated and extrapolated. The purpose of using the multi-model function is to perform a real-time approximation for a complicated nonlinear syste... View full abstract»

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  • Simulation optimization of airline delay using simultaneous perturbation stochastic approximation

    Publication Year: 2000, Page(s):253 - 258
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (116 KB)

    Air traffic delay is a growing and expensive problem. We looked at ways to reduce the cost and magnitude of such delays by trading gate delays against more expensive air delays. Air management and planning at this level can be facilitated by simulation, especially for strategies that alter controls on the system. We used the SIMMOD air traffic simulation to model the system. Since the model is sto... View full abstract»

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  • A state-based scheduling algorithm for time warp synchronization

    Publication Year: 2000, Page(s):14 - 21
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (128 KB)

    Presents a state-based scheduling algorithm for the selection of the next logical process (LP) to be run on a processor in a time-warp synchronized parallel discrete event simulation. In our solution, state information related to the LPs in the intermediate predecessor set of a given LP is used to compute its scheduling priority. This distances our algorithm from previous solutions where the sched... View full abstract»

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  • Development of an object oriented simulation engine for on-line simulation and optimization

    Publication Year: 2000, Page(s):291 - 298
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (84 KB)

    An object oriented (OO), discrete event simulation engine for on-line simulation applications has been conceptualized, designed, developed and tested. This paper describes the concepts, the advantages of OO simulation and results achieved in a near-real-time application. Flexibility to customize, real time state initiation, and capability for modeling complex resource and process relationships are... View full abstract»

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  • Performance analysis of multiprocessor architectures via analytical simulation

    Publication Year: 2000, Page(s):326 - 332
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (268 KB)

    The performance analysis of network architectures is a very crucial factor in designing multiprocessor systems. Very often, simulation is the only feasible method because of the nature of the problem and because analytical techniques become too difficult to handle. However simulation can be costly to develop and run. The mathematical analysis approach is preferable but in most cases not applicable... View full abstract»

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  • A methodology centered on modularization of QoS constraints for the development and performance evaluation of multimedia systems

    Publication Year: 2000, Page(s):177 - 184
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (120 KB)

    This paper proposes a methodology for the development of multimedia systems. It is based on a time-sensitive, reflective actor framework that centers on light-weight actors, non-overkilling concurrent and customizable constraint-directed scheduling. A multimedia system can be visualized as a collection of media actors, i.e., autonomous, concurrent and computational processing entities, involved in... View full abstract»

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  • Sequential dynamical systems and applications to simulations

    Publication Year: 2000, Page(s):245 - 252
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (168 KB)

    Computer simulations are extensively used for business and science applications. However a simulation generically generates a certain class of dynamical system whose properties are poorly understood. We address some theoretical issues of computer simulations and illustrate our concepts for the simulation of circular one-lane traffic. We propose a certain class of discrete dynamical systems (SDS) t... View full abstract»

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  • Optimal resource allocation for multi-service networks

    Publication Year: 2000, Page(s):33 - 41
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (96 KB)

    The next generation of communication networks will simultaneously offer multiple service classes capable of supporting both real-time and best-effort traffic. At the level of an individual network router or gateway, a critical question that needs to be addressed is the development of a set of policies and metrics to determine how router resources should be shared between different service classes.... View full abstract»

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  • Multiresolution behavioral modeling in a virtual environment

    Publication Year: 2000, Page(s):192 - 197
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (108 KB)

    This paper aims to speed up physical simulation of a complex model by making use of several levels of simulation details, which are determined according to the observer position. Multiple dynamically simulated sailing boats in a virtual lake are created as a test environment for the implementation. Both consistency and completeness are satisfied in the proposed method of simulation View full abstract»

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  • Grid-based data management in distributed simulation

    Publication Year: 2000, Page(s):7 - 13
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (64 KB)

    The data distribution management (DDM) service provided by the High Level Architecture (HLA) run-time infrastructure (RTI) is aimed at making data communication more efficient by sending data only to those federates who need the data, as opposed to the broadcasting mechanism employed by distributed interactive simulation (DIS). Several DDM methods, including class-, region and grid-based, have app... View full abstract»

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  • DSPTune: a performance evaluation toolset for the SHARC signal processor

    Publication Year: 2000, Page(s):51 - 57
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (44 KB)

    Performance tuning in the embedded systems domain poses a new set of challenges for software and hardware designers. Techniques proven to work for general purpose architectures cannot always be directly applied to the signal processor environment. Program analysis and simulation tools have been shown to be available in the analysis of general purpose microprocessors. We anticipate that similar too... View full abstract»

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  • Exploring CORSIM runtime characteristics: profiling a traffic simulator

    Publication Year: 2000, Page(s):139 - 146
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (76 KB)

    The runtime characteristics of CORSIM, a traffic corridor software simulator are presented. The simulator was profiled under both the NT and Linux operating systems. Profiling identifies bottleneck simulator function categories. Functions devoted to event scheduling and simulation overhead account for 80%-90% of CORSIM runtime View full abstract»

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  • PUMP: a program understanding tool for MODSIM programs

    Publication Year: 2000, Page(s):121 - 130
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (116 KB)

    Automated program understanding tools have the potential to make important contributions to reducing the very substantial costs of program maintenance. We formulate a particular approach to program understanding within the context of the object-oriented simulation language, MODSIM. The software tool that has been developed is called PUMP (Program Understanding of MODSIM Programs). The input to thi... View full abstract»

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  • Simulation-trace-based component performance prediction

    Publication Year: 2000, Page(s):283 - 290
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (60 KB)

    Large software systems are composed of interdependent distributed components, some developed in-house, some commercially available, and others developed by the customer. The system architecture, that is, the components comprising the system and their interconnections, typically varies for each design. Performance prediction is important for such software, including helping designers to select bett... View full abstract»

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  • MICA: a memory and interconnect simulation environment for cache-based architectures

    Publication Year: 2000, Page(s):317 - 325
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (156 KB)

    MICA is a new-generation simulation environment, which provides complete simulation facilities for simulating distributed shared memory (DSM) multiprocessors. It runs on the inexpensive Linux-based PCs. MICA uses application traces as inputs and provides a core scheduler and memory, and interconnect interfaces. A rich set of synchronization algorithms and architecture simulator are also provided. ... View full abstract»

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  • Multi-resolution modeling of power converter using waveform reconstruction

    Publication Year: 2000, Page(s):165 - 174
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (168 KB)

    Computer simulation of switching power converters is complicated by the discontinuous (switching) nature of the converter waveforms. When switching details of the waveform are of interest, detailed simulations requiring extremely small time steps are needed. On the other hand, so-called averaged models allow capture of low-frequency converter dynamics (of interest for example when closing the feed... View full abstract»

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  • Mean estimation based on phi-mixing sequences

    Publication Year: 2000, Page(s):237 - 244
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (144 KB)

    This paper discusses the implementation of two sequential procedures to construct confidence intervals for a simulation estimator of the steady-state mean of a stochastic process. Our quasi-independent-mean (QIM) methods attempt to obtain i.i.d. samples. We show that our sequential procedures give valid confidence intervals. The two assumptions required are that the stochastic-process output seque... View full abstract»

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  • A comparative evaluation of sorted priority algorithms and class based queuing using simulation

    Publication Year: 2000, Page(s):99 - 105
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (72 KB)

    This paper present results from a simulation study aimed at evaluating the comparative performance of two resource control mechanisms viz. weighted fair queueing (WFQ) and class based queueing (CBQ). The purpose of this work is to assess their relative suitability for supporting multiservice in future packet switched networks. The experiment described in this paper compares their respective respon... View full abstract»

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  • First results on formal comparison of several stochastic optimization algorithms

    Publication Year: 2000, Page(s):259 - 269
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (96 KB)

    This paper is a first step to formal comparisons of several leading optimization algorithms, establishing guidance to practitioners for when to use or not use a particular method. The focus in this paper is four general algorithm forms: random search, simultaneous perturbation stochastic approximation, simulated annealing and evolutionary computation. The paper summarizes the available theoretical... View full abstract»

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  • On QoS multicasting performance in wide area networks

    Publication Year: 2000, Page(s):25 - 32
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (200 KB)

    Multicasting enables applications to scale to a large number of users without overloading the network and server resources. With the advent of multimedia applications, the focus of multicasting research has shifted from minimizing the overall cost of the multicast tree to finding one which supports the QoS requirements of the underlying multimedia application. Finding such a tree, however, is NP-c... View full abstract»

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  • Modeling and simulation of a network of workstations with wormhole switching

    Publication Year: 2000, Page(s):299 - 306
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (100 KB)

    Networks of workstations (NOW) are becoming a very popular alternative to parallel computers for those applications with high needs of resources such as memory capacity processing power and input/output storage space. Typically, these networks connect workstations using irregular topologies, providing wiring flexibility, scalability, and incremental expansion capability required in this environmen... View full abstract»

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  • Active virtual guides as an apparatus for augmented reality based telemanipulation system on the Internet

    Publication Year: 2000, Page(s):185 - 191
    Cited by:  Papers (6)  |  Patents (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (140 KB)

    In many current teleoperation architectures, remote tasks are indirectly performed by a human operator (HO) by means of a virtual environment consisting in a virtual or symbolic representation of the remote site. In order to achieve virtual tasks, the interaction of the HO and the virtual representation is monitored. Monitoring results are subsequently translated into a sequence of instructions se... View full abstract»

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  • Proactive fault-management in software systems

    Publication Year: 2000, Page(s): 3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (12 KB)

    First Page of the Article
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