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A game theory based trust model for Vehicular Ad hoc Networks (VANETs)

机译:车载自组织网络(VANET)的基于博弈论的信任模型

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Vehicular Ad hoc Networks (VANETs) facilitate road safety, transportation security, reliability and management. This paper presents a game theory based trust model for VANETs. The proposed model is based on an attacker and defender security game to identify and counter the attacker/malicious nodes. The parameters considered for attackers and defender's strategy are majority opinion, betweenness centrality, and node density. The outcome of the specific game is determined by the game matrix which contains the cost (payoff) values for possible action-reaction combination. Nash equilibrium when applied to calculate the best strategy for attacker and defender vehicles. The model is simulated in Network Simulator (ns2), and results show that the proposed model performs better than the schemes with random malicious nodes and existing game theory based approach in terms of throughput, retransmission attempts and data drop rate for different attacker and defender scenarios. (C) 2017 Elsevier B.V. All rights reserved.
机译:车载自组织网络(VANET)促进了道路安全,运输安全,可靠性和管理。本文提出了一种基于博弈论的VANET信任模型。提出的模型基于攻击者和防御者的安全博弈,以识别和应对攻击者/恶意节点。攻击者和防御者的策略考虑的参数是多数意见,中间性和节点密度。特定游戏的结果由游戏矩阵确定,其中包含可能的行为-反应组合的成本(收益)值。纳什均衡应用于计算攻击者和防御者的最佳策略时。在Network Simulator(ns2)中对该模型进行了仿真,结果表明,针对不同的攻击者和防御者场景,该模型的性能,吞吐量,重传尝试和数据丢失率均优于具有随机恶意节点的方案和基于现有博弈论的方法。 。 (C)2017 Elsevier B.V.保留所有权利。

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