1,802 research outputs found
Well-posedness for a multi-dimensional viscous liquid-gas two-phase flow model
The Cauchy problem of a multi-dimensional () compressible
viscous liquid-gas two-phase flow model is concerned in this paper. We
investigate the global existence and uniqueness of the strong solution for the
initial data close to a stable equilibrium and the local in time existence and
uniqueness of the solution with general initial data in the framework of Besov
spaces. A continuation criterion is also obtained for the local solution.Comment: 28 page
Global well-posedness for the Gross-Pitaevskii equation with an angular momentum rotational term in three dimensions
In this paper, we establish the global well-posedness of the Cauchy problem
for the Gross-Pitaevskii equation with an angular momentum rotational term in
which the angular velocity is equal to the isotropic trapping frequency in the
space \Real^3.Comment: 11 page
Energy and spectral efficiency tradeoff with user association and power coordination in massive MIMO enabled HetNets
In this letter, we investigate the tradeoff between energy efficiency (EE) and spectral efficiency (SE) while ensuring proportional rate fairness in massive multiple-input multiple-output enabled heterogenous networks, where user association and power coordination are jointly considered. It is first formulated as a multi-objective optimization problem, and then transformed into a single-objective optimization problem. To solve this mixed-integer non-convex problem, an effective algorithm is developed, where the original problem is separated into lower level power coordination problem and master user association problem. Simulation results verify that our proposed algorithm can significantly improve the performance of EE-SE tradeoff and obtain higher rate fairness compared with other algorithms
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