Conference Paper

Trust-based Approachesto Solve Routing Issues in Ad-hoc Wireless Networks: A Survey

DOI: 10.1109/TrustCom.2011.72 Conference: IEEE International Conference on Trust, Security and Privacy in Computing and Communications

ABSTRACT Trust is important in Ad-hoc networks because collaboration and cooperation among nodes are critical towards achieving the system's goals, such as routing reliability. In this paper, we seek to provide an understanding of the process of reputation-based trust approaches and related issues as they apply to routing in ad-hoc networks. We discuss the concept and properties of trust. We survey the following issues: the way wireless ad-hoc nodes first assume trust; the evidences that are collected to calculate trust; the calculations that are performed over the evidences; the way the decision is made to determine a trusted node; and how trust is updated to maintain a trusted environment. We provide a comparison of three well-established approaches and discuss some potential attacks against reputation-based trust.

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