A New Model for Resource Discovery in Grid Environment

Resource discovery is the most important challenge of Grid systems. Lately many researchers tried to improve indexing and searching methods. To this aim, there are several factors affecting improvement such as time and message complexities, scalability, dynamicity, reliability, support of different types of queries, and so on. This paper proposes a new model for resource indexing and discovery, which reduces the time and message complexities significantly. It is based on indexing the nodes and resources in a tree schema. Peers on the leaves of the tree will be in a virtual super-peer schema. Nodes are categorized hierarchically relative to their resources, so that the domain of search narrows rapidly and queries can be replied quickly and without wasted messages.