Hajar Atrianfar

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In this paper, we present sufficient conditions to address a larger class of digraphs, including balanced ones, whose members' Laplacian (L) makes L<sub>1</sub>L + L<sup>T</sup>L<sub>1</sub> to be positive semi-definite, where L<sub>1</sub> is the Laplacian associated with a fully connected equally-edged weighted graphs. This property can be later utilized(More)
This paper introduces a hierarchical route management simulation model in OPNET modeler to allow performance evaluation of different scenarios proposed for interconnections between different administrative levels of control segments -provincial and national- of next generation network (NGN) in call routing procedure. The provided model is an enhancement(More)
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