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

在网络控制、自组织网络和汽车驾驶控制方面取得了以下研究成果： 1．提出了一种使用网络可转移计算机和移动IP的动态负载分配方法。为了避免到服务器的路由上出现拥塞，服务器可以在所提出的方法中在网络中移动，从而实现负载分配。 2．已经提出了一种将动态分层结构引入自组织网络的自治聚类，并且还提出了基于自治聚类的一类单播路由和多播路由。可以通过改变每个节点和每个集群的角色来维持层次结构。树用于集群内路由，而现有路由用于集群间路由。所提出的路由可以以低开销获得高性能。 3．提出了一种利用自组织网络技术在高速公路上进行汽车行驶控制的方法。在所提出的方法中，可以根据每辆车附近的拥堵变化动态选择驾驶控制调度。随着汽车间传递拥塞信息的跳数的增加，可到达目的地的汽车数量也随之增加。自适应环境代理对于网络来说是有效的，使得拓扑可以频繁改变。 Ad hoc网络就是这样一种典型的网络。在未来的研究中，将完成自组织网络的自适应环境代理。

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.