Generalized signal alignment: On the achievable DoF for multi-user MIMO two-way relay channels

K Liu, M Tao - IEEE Transactions on Information Theory, 2015 - ieeexplore.ieee.org
… Y channel, multi-pair MIMO two-way relay channel, and generalized MIMO two-way X relay
channel to analyze their achievable DoF, … MIMO two-way relay channels. Section VI presents …

Degrees of freedom for the MIMO multi-way relay channel

Y Tian, A Yener - IEEE Transactions on Information Theory, 2014 - ieeexplore.ieee.org
… We show that the DoF for the MIMO multi-way relay channel is always upper bounded by …
investigate the achievable DoF for several scenarios of the MIMO multi-way relay channel. We …

Achievable degrees of freedom on MIMO two-way relay interference channels

K Lee, N Lee, I Lee - IEEE transactions on wireless …, 2013 - ieeexplore.ieee.org
… the achievable total degrees of freedom (DOF) when all user nodes and relays have M and
… In this section, we study the achievable sum DOF of twoway relay interference channels. We …

On the achievable degrees of freedom of a K-user MIMO interference channel with a MIMO relay

S Chen, RS Cheng - IEEE transactions on wireless …, 2013 - ieeexplore.ieee.org
… Txs and Rxs have global channel state information (CSI). While this result showed that
relays cannot increase the achievable DoF, we find that relay eliminates the CSI requirement at …

Degrees of freedom for MIMO two-way X relay channel

Z Xiang, M Tao, J Mo, X Wang - IEEE Transactions on Signal …, 2013 - ieeexplore.ieee.org
… Next, we analyze the achievable DOF when … This paper considered the total DOF for the
MIMO two-way X relay channel. We analyzed the upper bound on the DOF for such a network. …

Interference alignment in MIMO interference relay channels

X Chen, SH Song, KB Letaief - 2012 IEEE Wireless …, 2012 - ieeexplore.ieee.org
… In this paper, we investigated linear interference alignment and the achievable DoF of
MIMO interference relay channels. First, an iterative algorithm was designed to determine the …

Optimal DoF region for the asymmetric two-pair MIMO two-way relay channel

K Liu, M Tao, X Yuan - IEEE Transactions on Signal Processing, 2016 - ieeexplore.ieee.org
… We then prove that the DoF tuples in the outer bound in each case are achievable. The
main novelty of our proof lies in the appropriate combination of antenna deactivation, …

Achieve the degrees of freedom of K-user MIMO interference channel with a MIMO relay

S Chen, RS Cheng - 2010 IEEE Global Telecommunications …, 2010 - ieeexplore.ieee.org
… Based on the idea of interference alignment, we propose a DoF achievable scheme by
making use of the MIMO relay. The proposed scheme relaxes the CSI requirement in [1][4] and …

On the generalized degrees of freedom of the Gaussian interference relay channel

A Chaaban, A Sezgin - IEEE transactions on information theory, 2012 - ieeexplore.ieee.org
… While it is known that the relay does not increase the degrees of freedom (DoF) of the IRC, …
and achievable rates. The obtained setup is known as the interference relay channel (IRC). …

On the DoF and secure DoF of K-user MIMO interference channel with instantaneous relays

A Azari - Wireless Networks, 2020 - Springer
… Specifically, we derive a lower bound on the achievable secure DoF by devising an
achievable scheme, called transmission in the null space (TNS). This scheme makes the cross …