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We present in this paper a scheduling algorithm towards the service migration uncertainty that aims to enhance the service survivability in the server cluster system. Survivable scheduling algorithm is one of the important aspects of survivability study. This paper introduced the stochastic mechanism in the server cluster systems, which made it uncertain of the services migration among the servers,...
Authentication mechanism is important for network security and defence. In this paper, we describe the authentication process as a four-dimensional queuing model expressed as a quasi-birth-and-death process, and obtain the steady probabilities distribution, which leads to compute some important indices of the system. The numerical experiments show that the analytical method of this paper can effectively...
It has long been an outstanding conjecture that any (2n − 1)-stage shuffle exchange network (Omega network) is rearrangeable for 2n × 2n. Many researchers have failed to prove this conjecture, including a recent one established by Hasan. However, nobody has pointed out its fallacy. Therefore, as one of the objectives, this paper shall clarify this fact. Since the case of n = 3 has been proven...
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