… The gains of cognition in transmitters and relays, for interference channels have … achievable
DoF. Motivated by the premise that adding relays can recover the lost DoF in the X channel …

… that the total DoF upper bound 4M of MIMO two-way X relay channel is achievable when M
… In Section II, we introduce the system model of the MIMO twoway X relay channel. In Section …

… the relay. This piecewise linearity is similar to the DoF capacity obtained for the MIMO interference
channel … Finally, we derive an asymptotic achievable DoF when K tends to infinity. We …

… relays in the second hop. We study the achievable DoF of the network with various channel
… BSs and the users while the relays have CSI of the two-hop channels. We first consider the …

… can also achieve the optimal DoF in a symmetric MIMO interference channel. Interference
… Here, we derive the achievable DoF and the number of antennas required at the relay for a …

… relays and two destinations, each with arbitrary number of antennas. We prove that the
maximum achievable DoF … As a result, the channel state information (CSI) of all the sourceto-relay …

… achievable DoF is … achievable DoF of the ns-TWRC counterpart can be attained in s-TWRC.
With either a regenerative or nonregenerative relaying strategy employed, maximum DoF in s…

… a single antenna half duplex relay. We show that with a single antenna relay and delayed
output feedback, the upper bound of 4/3 DoF for the X-channel is achievable and we propose …

… two hop channel, when both nodes require similar throughput, the achievable DoF pairs for
FD … FD still can achieve better DoF pairs than HD, provided the relay has sufficient number of …

… of achievable DoF for a generalized MIMO Y channel with … Y channel is a 1-cluster K-user
MIMO multi-way relay channel of [… and the relay node has N antennas, the DoF is upper …