It is now well known that employing channel adaptive signaling in wireless communication
systems can yield large improvements in almost any performance metric. Unfortunately …

Distributed antenna systems (DAS) augment the base station's transmit capability by adding
multiple remote radio units, connected to the base station via a high bandwidth and low …

Coordinated multi-point (CoMP) is a new class of transmission schemes for interference
reduction in the next generation of mobile networks. We have implemented and tested a …

We consider a MIMO broadcast channel where both the transmitter and receivers are
equipped with multiple antennas. Channel state information at the transmitter (CSIT) is …

In this paper, we discuss the joint precoding with finite rate feedback in the so-called network
multiple-input multiple-output (MIMO) where the TXs share the knowledge of the data …

In frequency-division duplex full-dimension massive MIMO systems, one of the main
challenges is to obtain sufficiently accurate channel state information (CSI) at the transmitter …

Future wireless systems are expected to support high data rates of 1 Gbit/s or more in a
variety of scenarios. A key technology in order to achieve the required high spectral …

Limited feedback enables the practical use of channel state information in multiuser multiple-
input multiple-output (MIMO) wireless communication systems. Using the limited feedback …

Techniques for scheduling UEs are described. In one design, a scheduler (eg, for a cell)
may receive channel direction information (CDI) and channel strength information (CSI) from …

In this paper we study the beamforming vector quantization and feedback transmission
problem for a cooperative transmission environment. Feedback is the primary means of …