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In Application-Layer Multicast (ALM) tree, when a parent node leaves, all its descendent nodes must adjust their positions resulting in the interruption of multicast connections. This is called stability problem of ALM trees which may degrade the continuity of multicast data transmission. In this paper, we analyze the stability problem of ALM trees and propose the Instantaneous Stability Degree Model...
A challenging research issue of analyzing networks where packets are served probabilistically, such as multi-access networks and wireless networks, is to characterize the stochastic nature of service provided to users. This paper proposes a server model for characterizing a service process with the consideration of the stochastic nature of service. The proposed server model is defined based on a probabilistic...
In this paper, a probabilistic estimation model for information systems security (ISS) risk analysis based on evidential reasoning approach is presented. The modeling process consists of four phases: specification of the model structure, estimation of evidence strength, computation of beliefs on assertions, and ISS risk monitoring and analysis. Using the changes of strength of evidences obtained in...
False data injection is a big threat to sensor networks. A traceback mechanism based on probabilistic packet marking is proposed in this paper. The performance of the basic marking method is thoroughly studied. There is a defect in the basic marking method that upstream nodes' marks are collected by the sink with low probability. To solve the problem, two different improved marking methods-EPPM&EPNM-are...
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