… propose new robust precoding designs which can … precoding designs for limited feedback
systems. Then, we obtain an approximation of the second-order statistics of quantized channel …

… In Section III, we provide a background of the initial beam alignment phase and the feedback
mechanism necessary for the multi-user beamforming envisioned in this work. Section IV …

… For many practical precoding schemes, such as ZFDPC and … In this paper, we design a
multiuser spatial TH precoding … feedback filter are computed at the transmitter only based on …

… Based on the observation that channel subspace feedback is sufficient for BD precoding
with equal power allocation, we derive the best Grassmannian subspace representation for a …

… to feed back the necessary information to build the precoding … precoding schemes of
MU-MIMO downlink channel will be introduced in this section. In order to describe the precoding …

… at the transmitter for every time instant given a significantly lower channel feedback rate by
… precoding matrices for the multi-user MIMO-OFDM case using perfect instantaneous channel-…

… The greatest performance gains in MIMO systems are achieved when channel state … or
precoding [3]. This paper focuses on linear precoding in the downlink of multiuser MIMO (MU-…

… This paper studies zero-forcing precoding with limited feedback for MIMO OFDM system and
investigate the performance with CQI estimations, CDI quantization, user selection and link …

… codebook into precoding matrices according to the correlation coefficient of the vectors to
suppress the multi-user co-channel interference (CCI). It terms as non-unitary precoding and …

… MIMO techniques (such as DPC or sub-optimal but low-complexity linear precoding) that …
of channel feedback protocols, this work suggests that very high-rate channel feedback should …