| Summary: | 碩士 === 國立中正大學 === 資訊工程研究所 === 92 === Distributed Virtual Environment (DVE) is a very popular application in wired network in recent years. But no product is developed for wireless network and little research is conducted in the literature. In this paper, we first discuss the network topology of DVE, and we find that how to efficiently use the bandwidth is a critical issue to decide the quality of DVE. Many research results point out that the technology of multicast can be used for DVE to reduce the bandwidth consumption. In mobile ad hoc network (MANET) environment, which has the characteristic of low bandwidth, multicast is a very suitable technique for developing a DVE. In this paper, we propose a hierarchical tree-based self-addressing algorithm, by which packets can be routed efficiently. Then we develop a novel small group multicast algorithm based on our tree architecture. We have performed simulations to evaluate the performance of our multicast algorithm, and the result point out that it reduce the bandwidth consumption. Finally, we implement a simple DVE by taking use of our algorithm to show that our method is feasible significantly.
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