Fenghang Yin

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The major disadvantage of the implicit time domain finite element method (TDFEM) is that a large sparse matrix equation has to be solved repeatedly at each time step. To speed up solving of the matrix equations, a multilevel inverse-based incomplete LU (MIB-ILU) preconditioning is employed in this paper for 3D scattering problems. Numerical experiments show(More)
The content dissemination among mobile users can be solved by self-facilitated mobile ad hoc networks (MANET) in an infrastructure environment. But the devices used to make up the mobile ad hoc networks usually have a limited radio transmission range, sporadic node density and power limitation, which makes MANET become intermittently connected. In this(More)
As the proportion of video programs is expected to grow significantly, video services will require a huge amount of Internet bandwidth in the future. In this paper, we model the video program placement (VPP) problem in tree networks which sends video programs to the requesting (demand) nodes using a broadcast method. The model considers the cost for both(More)
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