… as: i) we consider the multiuser case in which each user can only sense and feedback its
own channel, yet the precoding process is a function of all users’ channels; ii) we provide end-…

… 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 …

… feedback and finite codebooks affect the rates achieved by the developed hybrid precoding
… One advantage of using the virtual channel model in analyzing our proposed multi-user …

… to confirm its feasibility in a multi-user DAS where a precoder is employed in BSs. … precoding
in the limited feedback scenario where only finite sets, or codebooks, of possible precoding …

… in the feedback encoder. The … PRECODING WITH LIMITED FEEDBACK In this section we
present a MU-MIMO scheme that uses linear precoding based on quantized channel feedback. …

… The paper is organized as follows: After discussing the channel model in Section II, we
review the concepts of spatial equalization and precoding in Section III. An important aspect for …

… multi-user diversity, compared to a system having collocated antennas only. Different multi-user
multiplexing strategies for distributed … [16] for limited feedback precoding is employed in …

… pilot sequences, limited feedback, and precoding. To address … feedback information
generation at users and the precoder … for distributed channel feedback and multiuser precoding in …

… of precoding plays a crucial role in achieving a high downlink sum-rate in multiuser multiple-…
learning based joint CSI feedback and multiuser precoding method in frequency division …

… to limited feedback. Here, we compare two different feedback approaches: in the first, users
feed back the best entry of a precoder codebook, and in the second, users provide quantized …