Use of the HLA in a Real-Time Multi-Vehicle Simulator

This paper outlines the use of a High Level Architecture (HLA) compliant design for the Carleton University Simulator Project (CUSP). HLA is a modular interoperability standard (IEEE 1516) for combining distributed, networked simulations. Interoperability is achieved through the standardization of the communication interfaces between simulation components. Reduction of large, monolithic simulations into smaller, component based simulation modules allows for the distribution of processor intensive computations across multiple computers, alleviating the need for a powerful single computer. Additional advantages also arise because of the component-based nature of the HLA including reusability, modularity and expandability. Use of an HLA compliant design in CUSP has allowed for independent, concurrent software development allowing for flexibility in project planning and management. Issues with undefined and changing requirements are also now manageable allowing for future changes and expandability as CUSP evolves.