SPRINGSIM

There has recently been a tremendous level of interest inthe use of end-host multicast to provide group communicationwithin a wide area network. End-host multicast shiftsthe burden of group-communication support from networkrouters to the host. End-host ...

Wireless Sensor Networks are comprised of a vast numberof ultra-small, autonomous computing and communicationdevices, with restricted energy, that co-operate to accomplisha large sensing task. In this work: a) We proposeextended versions of two data ...

This paper details the design and implementation of the(α, t) protocol for ad-hoc networks on Linux.The (α, t)protocol utilizes adaptive clustering to organize nodes intoclusters in which the probability of path failure due to nodemovement can be ...

We quantatively analyze the differences between a realisticmobility model, TRANSIMS, and several synthetic mobilitymodels. New synthetic models were created by modifyingthe standard random way point model in several waysin an attempt to make it more ...

In this work we propose a new energy efficient and faulttolerant protocol for data propagation in wireless sensornetworks, the Variable Transmission Range Protocol VTRP.The basic idea of data propagation in VTRP is the varyingrange of data transmissions,...

Many fields have or are developing ontologies for theirsubdomains. The Gene Ontology (GO) is now consideredto be a great success in biology, a field that has alreadydeveloped several extensive ontologies. Similar advantagescould accrue to the simulation ...

In this paper we present Solemn, a new user-level simulationmode for Sparc Sulima, a SPARC V9 complete machinesimulator. Solemn extends Sparc Sulima allowing it tosimulate at user-level an unmodified Solaris executable: 32or 64-bit, and statically or ...

A Metadata tools system and a Data Services systemare undergoing development and integration, at SandiaNational Laboratories, to provide web-based access tohigh-performance computing clusters and its associatedsimulation data. These clusters host a set ...

This paper discusses an integrated framework of IDEFmethods for generating a common data model usable fordiscrete manufacturing systems. From this data model, asimulation model is automatically generated using adatabase-driven and atom-based approach. A ...

The aim of the research is to investigate techniques thatsupport efficient service scheduling algorithms in aservice-oriented fault-tolerant real-time distributed system.Techniques we developed include deadline- basedreal-time scheduling, priority-based ...

To enable optimizations in memory access behavior ofhigh performance applications, cache monitoring is a crucialprocess. Simulation of cache hardware is needed in orderto allow research for non-existing cache architectures,and on the other hand, to get ...

With the increasing amount of dynamic andpersonalized web content, researchers start to address theacceleration of the first time access of web pages,hopefully to bring significant improvement to contentdelivery. While most of these efforts are related ...

With third and fourth generation (4G) wirelesstechnology, operators may manage multiple wirelessnetworks, including cellular networks of differentgenerations, frequencies and cell sizes; potentiallymultiple wireless LAN networks operating at ...

In this paper, we present a novel energy efficientrouting protocol for mobile ad hoc networks. Thisprotocol is particularly designed for dense networks.Node location information is used to simplify routingstrategy. Only a small number of nodes are ...

In this paper, we propose the proportional-integral (PI)-proportional-derivative (PD) controller mechanism, which can provide robust and predictive congestion avoidance andcontrol using an adaptive congestion indicator and a controlfunction. PI-PD ...

We present the development of an integratedextendable web-based simulation environment calledComputational Science and Engineering On-line (CSEO)that allows computational scientists to perform researchusing state-of-the-art tools, querying data from ...

In this paper, we describe the design and implementationof a self-manageable multi-tiered infrastructure tosupport web-based scientific simulations. This infrastructuredemonstrates not only the successful integration ofWeb servers, simulation servers, ...

The Activity Cycle Diagrams are a simple notation tomodel discrete-event simulation systems. Its informalitymakes it very useful when communicating the model tonon-specialists; however, it also makes the automaticcode generation very difficult. Some ...

DAP (Distributed Algorithms Platform) is a generic andhomogeneous simulation environment aiming at the implementation,simulation, and testing of distributed algorithmsfor wired and wireless networks. In this work, we presentits architecture, the most ...

A new object-oriented version of the SIMSCRIPTprogramming language is under development.Incorporating modules and object classes, the newlanguage is designed for modular, object-orientedsimulation programming.

A pooled, shared C++ allocator developed for use withthe Standard Template Library (STL) is described. The allocatoris developed to serve as the core of a Road TrafficSimulator. The C++ allocator facilitates communicationand control between multiple ...

This work presents the SMS (SuperscalarMultiprocessor Simulator) tool - version 1.0 - based inthe SimpleScalar's core. That tool allows parallelapplication development, performance analysis and willprovide the configuration of several parallel ...

The last fifteen years have witnessed a resurgence ofinterest in asynchronous digital design techniques as theypromise to liberate VLSI systems from clock skew problems,offer the potential for low power and high performanceand encourage a modular design ...

Binary translation has been widely used as object codemigration across different architectures. Most currentworks are targeted towards running an existing (old architecture)binary version of a complex application on a newerarchitecture and so ...

Recent advances in micro electro-mechanical systemsand VLSI lithography have enabled the miniaturizationof sensors and controllers. Such minitiarization facilitatesthe deployment of large-scale wireless sensor networks(WSNs). However, the considerable ...

Continuous system models are becoming increasinglymore important in the modeling and analysis of complexsystems. Unfortunately, the runtime simulation costs requiredto support continuous modeling can be prohibitiveto their use. One technique to decrease ...