Component Carrier Selection and Beamforming on Carrier Aggregated Channels in Heterogeneous Networks
In this paper, component carrier selection and beamforming on carrier aggregated channels in heterogeneous networks are proposed. The scheme jointly selects the component carrier and precoding (i.e. beamforming) vectors with the co-operation of the other cells to deal with the interference between Macro cell and Pico cell. The component carrier selection and beamforming is achieved by optimizing the multi-cell downlink throughput. This optimization results in shutting down a subset of the component carrier in order to allow for a perfect interference removal at the receive side in the dense low power node deployment scenario.