计算机应用研究2011，Vol.28Issue(3)：1065-1069,5.DOI:10.3969/j.issn.1001-3695.2011.03.077
移动自组网中基于多约束和协同过滤动态信任机制
Dynamic trust mechanism based on multi-constraints and collaborative filtering in mobile Ad hoc networks
摘要
Abstract
Due to their distributed nature, MANETs are vulnerable to various attacks.To enhance security of MANETs, this paper proposed a DTM based on multi-constraints and collaborative filtering in MANETs.The main idea of this method introduced a trust updating algorithm with multi-constraints (time aging factor ensured that the trust fades with time; rewards factor ensured that good peers deserve to be rewarded; and penalty factor ensured that the selfish or the malicious deserve to be punished) to assess direct trust by self-experience of nodes, and adopted collaborative filtering technique to evaluate recommendation trust in order to prevent false recommendations.The analytic results show that DTM not only can compute trust between nodes more precisely than Bayesian model, but also can improve security of MANETs through quantitative evaluation analysis and extensive simulations.关键词
移动自组网/信任评估/多约束/协同过滤/动态信任机制/直接信任/推荐信任分类
信息技术与安全科学引用本文复制引用
彭三城,陈建平,胡忠望..移动自组网中基于多约束和协同过滤动态信任机制[J].计算机应用研究,2011,28(3):1065-1069,5.基金项目
国家自然科学基金资助项目(60773013) （60773013）
肇庆学院科研启动基金资助项目(201032) （201032）
