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Hierarchical QoS Architecture for Virtual Dancing Environment  

김진용 (한양대학교 전자통신전파공학과)
원유집 (한양대학교 전자전기컴퓨터공학부)
김범은 (한양대학교 전자통신전파공학과)
박종일 (한양대학교 전자전기컴퓨터공학부)
박용진 (한양대학교 전자전기컴퓨터공학부)
Publication Information
Journal of KIISE:Computer Systems and Theory / v.30, no.11, 2003 , pp. 675-690 More about this Journal
Abstract
In this paper, we present the virtual dancing studio for distributed virtual environment. In this system, geographically distributed user shares the virtual dancing hall and interacts with each other. The participating object can be a graphical avatar or a live video stream. It allows the coexistence of graphic objects and real images in the shared virtual space. One of the main technical challenges in developing the distributed virtual environment is to handle excessive network traffic. In an effort to effectively reduce the network traffic, we propose a scheme to adjust the QoS of each object with respect to the distance from the observer in the virtual space. The server maintains the QoS vector for each client's shared space and controls the packet traffic to individual clients based on its QoS vectors. We develop a proto-type virtual dancing environment. Java based development enables the client to be platform independent. The result of experiment shows that the adoption of hierarchical QoS management significantly reduces the overall network traffic.
Keywords
QoS; Distributed Virtual Environment; Multimedia Streaming; Multicast;
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