Abstract

최근 가상 환경의 발전은 이용자들이 현실 세계를 그대로 반영한 가상 환경을 요구하도록 변화하고 있다. 하지만 현재 서버 및 네트워크 환경은 소수의 이용자가 소수의 그룹을 이루어 함께하는 형태로, 현실 세계를 그대로 반영하지 못하고 있다. 가장 큰 이유 중 하나는 이용자간 정보 동기화에 많은 부하가 발생하기 때문이며, 이러한 부하는 정보 전달 시간을 증가시키게 된다. 본 논문에서는 이러한 문제를 최소화하기 위한 Migration Agent 서버 시스템을 제안한다. Migration Agent 서버는 Field Server 이동시 Player Character의 동기화 과정에서 DBMS의 접근을 최소화하여 응답 시간을 줄여주기 위한 서버로 Field Server간 Player Character 이동을 위한 캐시 서버 역할을 수행한다. 그에 더해 스택형태로 Field Server를 배치함으로 기존 격자 형태로 인해 특정 서버에 부하가 집중되는 것을 보완하였다. Nowadays users of Virtual Environment are want to play with thousands of players in an evolving virtual world at the same time over the internet. So, the load of this kind of Virtual Environments is heavier than that of any other precedents. One of load balancing methods is map-partition to divide the load of entire system which is vulnerable to delay message between clients and servers. In this paper, we propose a Migration Agent application server architecture using to help migration of player character between field servers and to reduce response time between clients and field servers. Migration Agent is reduce Player Character's responds time as Cache Server, if Player Character move to another Field Server, Player Character need the synchronization process in the DBMS approach, to minimize response time by reducing the period for cross - Player Character Field Server to perform the role. Field Server by placing them in form of a stack existing form of grid, for load concentrated on a specific server.

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