Research on grid-based distributed virtual reality

It is publicly considered that the next generational Internet technology is grid computing, which supports the sharing and coordinated use of diverse resources in dynamic virtual organizations from geographically and organizationally distributed components. Grid computing characters strong computing ability and broad width information exchange [I. Foster and C. Kesselman, 1998]. Globus presented open grid services architecture (OGSA), which centered on grid services [I. Foster et al., June 2002]. According to the characteristic of grid-based distributed virtual reality (DVR-G) and the development of current grid computing, this paper put forward the orient-grid distributed network model for DVR-G, whose dynamic virtual group is corresponding with the virtual organization in OGSA service. The GDNM is of more advantage to the distributed database consistency management, and is more convenient to the virtual group users acquiring the DVR-G data information, and the dynamic virtual groups in GDNM are easier and more directly to utilize the grid source and communication each other. The architecture of DVR-G designed in this paper is based on OGSA and Web services, which is keep to "the five-tiers sandglass structure" of the OGSA. This architecture is more convenient to utilizing grid service and decreasing the conflict with the grid environment. This paper presents the implementation of DVR-G and the interfaces of grid service.