Design and Implementations of Surrogates for Interoperation of HLA Federations

ABSTRACT: HLA (High Level Architecture) is a specification for interoperation among distributed heterogeneous simulators which are developed in different languages and platforms. HLA originally allows a number of federates to join in a federation using a single Run-Time Infrastructure (RTI). HLA does not specify the standard for interoperation of federations and RTI does not supply the related services. Therefore, there are several problems for interoperation of federations. This paper proposes a new architecture for interoperation of a set of federations, which employs a 2-way Surrogate based on an HLA Bridge. The architecture supports interoperation of two federations. As a representative of one federation, a Surrogate joins the opposite federation, which communicates with another Surrogate and federates of its joined federation. To keep HLA Rules, Surrogate and federates in the same federation do not exchange FOM data