Distributed Simulation Tool Research Articles

HLA based architecture for molecular communication simulation

In parallel to the developments in nano-scale machines and engineered cells, communication among them is getting more attention. The use of molecules to transfer information from one nanomachine to another is one of the mechanisms to build networks at the nano-scale. The research activities on communication models and performance evaluation of molecular communication heavily depend on simulations to verify the proposed models. The existing simulation tools for computer networking can not be directly used for molecular communication due to different communication model and channel characteristics of the fluid environment and the carrier wave properties. Simulation of molecular communication requires modeling the new communication paradigm that comprises different options for encoding, transmission, propagation, reception, and decoding. It should consider possible architectural design options and performance evaluation of molecular communication networks. Since molecular communication involves the modeling of large number of nano-scale objects, the scalability of the simulation tool is another important concern. In this paper, we introduce a simulator design that aims at fulfilling important design issues of the molecular communication model, focusing on scalability. High Level Architecture (HLA), which is standardized under IEEE 1516, is used to design and develop a distributed simulation tool for molecular communication. The results show that different scalability options can be used to benefit from additional processing power to shorten the execution time. This also enables modeling large systems, which may not be possible otherwise.

Distributed simulation of virtual workshops for the multi-site scheduling feasibility evaluation

In this article, a distributed simulation tool for the feasibility evaluation of multi-site scheduling is proposed. The application areas concern supply chains (SCs) or networks of distributed workshops. The distributed simulation of workshops, called virtual workshops, generates various problems of causality and of tasks execution coordination. These problems are addressed in the proposed distributed architecture by the use of High Level Architecture protocol guaranteeing the synchronisation and the chronology of events occurring in the distributed simulations. An application to a simple case of the SC organising the flow between three workshops shows the effectiveness of the distributed simulation tool.

Feasibility evaluation of multi-site scheduling by distributed simulation of workshops

In this paper, a distributed simulation tool for the feasibility evaluation of multi–site scheduling is proposed. The application areas concern Supply Chains (SCs) or networks of cooperating and distributed workshops. To facilitate the modelling of a corporate network, a generic framework is proposed. The distributed simulation of workshops, called virtual workshops, generates various problems of causality and of tasks execution coordination. These problems are addressed in the proposed distributed architecture by the use of High Level Architecture (HLA) protocol guaranteeing the synchronisation and the chronology of events. An application to a simple case of SC organising the flow between three workshops shows the effectiveness of the distributed simulation tool.

Distributed Building Evacuation Simulator for Smart Emergency Management

We describe a distributed simulation tool which addresses the unique needs for the simulation of emergency response scenarios. The simulation tool adopts the multi-agent paradigm, so as to facilita...

Distributed Building Evacuation Simulator for Smart Emergency Management

We describe a distributed simulation tool which addresses the unique needs for the simulation of emergency response scenarios. The simulation tool adopts the multi-agent paradigm, so as to facilitate the modelling of diverse and autonomous agents, and it provides mechanisms for the interaction of the entities that are being simulated. It operates in a distributed fashion to reduce the simulation time required for such large-scale systems. The simulation tool represents the individuals that need to be evacuated, the resources that contribute to the evacuation including human rescuers, and other active resources and entities which may include robots and which can autonomously interact with the environment and with each other and take individual or collaborative decisions. We illustrate the tool with an application and compare the results for both centralized and distributed execution. Our results also show the significant reduction in execution time that is achieved for different degrees of distribution of the simulator on multiple servers.

FEASIBILITY EVALUATION OF MULTI-SITE SCHEDULING BY DISTRIBUTED SIMULATION OF WORKSHOPS

In this article, a distributed simulation tool for the feasibility evaluation of multi-site scheduling is proposed. The application areas concern supply chains or networks of cooperating and distributed workshops. The distributed simulation of workshops, called virtual workshops, generates various problems of causality and of tasks execution coordination. These problems are addressed in the proposed distributed architecture by the use of HLA protocol guaranteeing the synchronization and the chronology of events. An application to a simple case of supply chain organizing the flow between three workshops shows the effectiveness of the distributed simulation tool.