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The increasing growth of the global Internet making the shortcomings of its unstructured topology and distributed routing algorithm are exposed more rapidly. To design a controllable, scalable and manageable backbone network with a simple, efficient architecture is very imperative. Among many topologies, Tree topology which has a natural hierarchical structure and explicit end-to-end transmission...
Today's Internet is facing many problems which did not take into account in its initial design, such as routing scalability, mobility and security. No matter evolutional or revolutionary solutions that are proposed in recent years, a recognized promising direction is to separate customer network from core network and separate identification from location. In this paper, we sketch out an architecture...
Current load balancing method for large scale spatial data network service can't dynamically adjust the load of spatial data servers according to the characteristics of spatial data. We propose a content-based spatial data dynamic load balancing method, which can dynamically group spatial data servers according to geographical position relativity and accessing heat of spatial data to improve Cache...
After analyzed the problem in the GlobeSIGht system in existence when the number of visitors rised sharply, which made the burden on the server increase rapidly; the respond rate was much slower than before, which must be influence the application effect of users, it was presented a kind of method, that was, making use of the mobile agent to transfer the tasks from fully loaded servers to the idle...
Current pervasive computing systems always focus on the local area network (LAN) environment, for example, an intelligent room or intelligent building. This paper uses mobile agent to implement the resource and service migration mechanism, and make the pervasive computing system adaptable to work in wide area networks (WAN). The work in this paper includes three parts: (1) introducing mobile agent...
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