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In this paper, three schemes based on the proportional fairness scheduling with power control are proposed for the virtual full-duplex (VFD) scheme by jointly considering the downlink (DL) and uplink (UL) UE pair selection and UL power control. In particular, the optimal scheme is derived via the exhaustive search for the UE pair and UL power. The second scheme reduces the complexity of the UE pair...
In this paper, we investigate joint base station (BS) activation and beamforming design for coordinated downlink transmissions in a cellular heterogeneous network (HetNet). We formulate the total power minimization problem as a mixed integer program. Using the Benders' partitioning method and the convex duality theory, we show that the global optimal solution can then be computed by solving a sequence...
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