DESIGN AND EVALUATION OF ASSURANCE NETWORK SOFTWARE BASED ON ADAPTIVE ENVIRONMENTAL AGENTS

本文在网络控制、自组网和汽车驾驶控制等方面取得了以下研究成果.提出了一种利用网络迁移计算机和移动的IP进行动态负载分配的方法。为了避免到达服务器的路径上的流量拥塞，服务器可以在所提出的方法中在网络中移动，从而可以实现负载分配.提出了一种将动态层次结构引入adhoc网络的自治分簇算法，并提出了一类基于自治分簇的单播路由和组播路由。层次结构可以通过改变每个节点和每个集群的角色来维护。树用于簇内路由，而现有路由用于簇间路由。通过所提出的路由可以获得低开销的高性能.提出了一种利用自组网技术实现高速公路上汽车行驶控制的方法。该方法可以根据车辆附近交通拥挤程度的变化动态地选择驾驶控制策略。可到达目的地的车辆数沿着增加，车辆间传递拥塞信息的跳数也随之增加。自适应环境代理对网络拓扑结构频繁变化的网络是有效的。adhoc网络就是这样一种典型的网络。在未来的研究中，adhoc网络的自适应环境代理将被做。

The following research results on network control, ad hoc networks and automobile driving control have been obtained.1. A dynamic load distribution method using the network transferable computer and the mobile IP has been proposed. In order to avoid traffic congestion on a route to the server, the server can move around the network in the proposed method so that load distribution can be attained.2. An autonomous clustering to introduce a dynamic hierarchical structure into ad hoc networks has been proposed and a class of unicast routings and a multicast routing based on the autonomous clustering have also been proposed. The hierarchical structure can be maintained by changing roles of each node and each cluster. A tree is used for the intra cluster routing while existing routings are used for the inter routing. A high performance with low overhead can be obtained by the proposed routings.3. A method for the automobile driving control on the highway using the ad hoc network technique has been proposed. In the proposed method, driving control schedulings can be dynamically selected according to change of congestion near each automobile. The number of automobiles reachable to their destinations can be increased along with increase of hop numbers with which congestion information can be delivered among automobiles.Adaptive environmental agents are effective to networks such that the topology can be frequently changed. Ad hoc networks are such a typical network. In the future research, adaptive environmental agents for ad hoc networks will be done.