Abstract: This paper proposes an access control scheme for cluster-based Ad Hoc networks. This scheme classifies the resources and nodes into levels to provide differentiated privileges access control. A dynamic access control mechanism is implemented based on the simple effective trust model and incentive mechanism which can change the node’s privilege. The cluster-head proxy is developed to access the resource that enhances security and fully utilizes the quality resources. Simulations result show that this scheme is of high efficiency and little communication.

Key words: Ad Hoc networks, clustering;access control, trust model, incentive mechanism

摘要： 基于分簇结构提出一种适用于Ad Hoc网络的访问控制方案。通过将资源和节点分等级来实现不同权限的访问控制；采用简单有效的信誉模型和激励机制来改变节点的权限，实现了动态的访问控制；通过簇头代理访问资源，增强了网络的安全性，并且使网络中优质资源得到充分利用。仿真结果表明，该方案有较高的效率和较少的通信量。

关键词: Ad Hoc网络, 分簇, 访问控制, 信誉模型, 激励机制