… This paper addresses the beamforming design at the base stations to optimize the network
… In such heterogeneous networks (HetNets), the small cell base stations (SBSs) serve static …

Consider a MIMO heterogeneous network with multiple … transmit beamformers accordingly.
In this work, we consider the problem of joint base station assignment and linear beamformer …

… Abstract—In this paper, we pioneer the study of physical-layer security in heterogeneous
networks (HetNets). We investigate secure communications in a two-tier downlink HetNet, …

… Abstract—We consider a heterogeneous network (HetNet), where multiple access points (…
via beamforming in the same spectrum band. We propose a beamforming framework that …

… In this paper we have considered the downlink joint base station assignment and beamforming
problem for a wireless heterogeneous network, with the goal of maximizing a system …

… clustering and beamformer design problem in a downlink multicell HetNet … beamformer
should have a group sparse structure, that is, the nonzero components of the virtual beamformer …

… feedback strategy is proposed to assist coordinated multi-point beamforming (CoMP-CB)
between a macro base station (MBS) and multiple pico BSs (PBSs) in heterogeneous networks…

… Before determining the transmit beamforming matrices of the macro BS, we design the receive
beamforming matrices for all users in order to cancel out the interference signals from the …

… beamforming matrix built from only phase-shifters. Two widely-used … beamformer architectures
for hybrid beamforming are shown in Figure 2. The fully-connected hybrid beamforming …

… downlink beamforming for wireless heterogeneous networks … an antenna array for downlink
beamforming. We formulate a … ) relaxation, for downlink beamforming that takes advantage of …