Abstract
We investigate wireless powered communication networks in an interference channel. In this system, due to asymmetric time allocation of the downlink and the uplink among multiple cells, cross-link interference may occur, which significantly affects overall performance. Considering this interference issue, we study a minimum rate maximization problem to overcome a severe imbalance on a rate distribution among users. The minimum rate maximization problem is non-convex; thus we propose an algorithm that updates the time allocation and the users’ transmit power based on the Lagrangian duality method and the Perron–Frobenius theorem, respectively. Simulation results verify that the proposed methods outperform conventional schemes.
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