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We develop an interference alignment technique, called cyclic IA, for full-duplex (FD) multiple-input multiple-output (MIMO) cellular networks in which a base station (BS) that operates in FD mode supports a set of half-duplex (HD) uplink and downlink users simultaneously. The key idea behind our approach is to construct a set of loop-equations enabling interference alignment, so that beamforming...
This paper focuses on interference issues arising in the downlink of a heterogeneous network (HetNet), where small cells are deployed within a macrocell. Interference scenario in a HetNet varies based on the type of small cell access modes, which can be classified as either closed subscriber group (CSG) or open subscriber group (OSG) modes. For these two types of modes, we propose hierarchical interference...
In this paper, we investigate an interference management scheme relying on multiple antennas in heterogeneous networks with a mixed macro and pico deployment. Our main contribution is to propose a new interference alignment scheme for the heterogenous network. Specifically, our scheme successively creates transmit beamforming vectors for the pico base stations (BSs) and for the macro base station...
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