一种基于D-S理论的网格环境下移动代理的动态规划方案

A mobile agent's dynamic programming scheme based on D-S theory in grid

网格和移动代理技术的结合,在支持任务调度、作业管理、资源管理以及智能决策等网格关键技术的问题领域有着独到的优点。通过对移动代理在网格环境下的规划问题进行研究,网格所具有的动态性、地域分布性、不确定性使得移动代理原有的静态迁移策略无法适应网格环境。结合基于D-S理论的资源信任度函数提出动态规划方案,即在移动代理进行迁移时,由移动代理与其所在的网格虚拟组织中的信任调度模块协同工作,完成移动代理的迁移任务,保护了移动代理不遭到恶意平台的攻击。

Grid is a set of emerging technologies built on Internet. It can integrate the resources all over the world to achieve the various resource sharing. Essentially the grid solves the problems of how to share resources and work together between lots of virtual agencies that are dynamic. Mobile agent technology, which combines software, communication and distributing system, has the capability of encapsulating private character, flexible harmony and better network adaptability. Combining grid and mobile agent technology can enhance the efficiency of task attemper, job schedule, resource management and intellective decision. The paper analyses the programming of the mobile agent in grid environment. Since grid is dynamic, geography distribute and uncertain, customary static transfer strategy of mobile agent can not adapt the grid environment. Combined resource credit function based on D-S theory, the paper designed a dynamic programming mechanism to avoid mobile agent being attacked by malicious agent platform, mobile agent cooperating with credit schedule model in grid virtual organization which it belongs during transferring.