摘要
为揭示MANET(Mobile Ad-hoc NETworks)匿名路由协议中节点不端行为及其抵御机制对节点协作性的影响,本文根据匿名节点状态转移的特点,提出了一种基于半马尔可夫过程的匿名节点状态转移模型.在该模型下,针对MANET匿名路由协议中节点能量消耗大和隐私保护要求高的特点,对节点状态极限概率进行了理论估计,给出了节点状态转移概率矩阵和转移期望时间矩阵的理论模型.最后,用实验分析了不同模型参数对节点状态极限概率的影响,验证了本文模型的有效性.
To reveal the effect of node misbehaviors and defense mechanisms against them on the node cooperation in anonymous routing protocol for MANET(Mobile Ad-hoc NETworks),an anonymous node state transition model based on semi-Markov process is proposed on the features of anonymous node state transition.Under this model,according to the characteristics of large energy consumption and high demand for privacy protection of anonymous node,we give a theoretical estimation of the limiting probability of node states,and present a model of the node state transition probability matrix and transition time expectation matrix.An experimental analysis to the effect of different model parameters on the limiting probability of node states verifies the model's validity at last.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2011年第5期1082-1086,共5页
Acta Electronica Sinica
关键词
移动自组织网
匿名路由协议
不端行为
建模
半马尔可夫过程
mobile ad-hoc networks(MANET)
anonymous routing protocol
misbehavior
modeling
semi-Markov process