On downlink beamforming with greedy user selection: performance analysis and a simple new algorithm
IEEE Transactions on Signal Processing - Part I
Precoding in multiantenna and multiuser communications
IEEE Transactions on Wireless Communications
On the achievable throughput of a multiantenna Gaussian broadcast channel
IEEE Transactions on Information Theory
An introduction to the multi-user MIMO downlink
IEEE Communications Magazine
On the optimality of multiantenna broadcast scheduling using zero-forcing beamforming
IEEE Journal on Selected Areas in Communications
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A method to design receive beamforming vectors with user selection is proposed for the multiuser Tomlinson-Harashima precoding, where each user is equipped with multiple antennas. The method exploits the relationship between LQ decomposition and Gram-Schmidt process to jointly optimize the receive beamforming vectors of users. Furthermore, a new approach is presented to reduce the amount of information required to send the beamforming vectors from the base station to users. Simulation results are provided to support the advantages of the proposed schemes.