A survey on beamforming techniques for wireless MIMO relay networks

D Vouyioukas - International Journal of Antennas and …, 2013 - Wiley Online Library
One of the major challenges the mobile broadband community faces is the exponential
increase in mobile data traffic, even more so, for cell‐edge users. Thus, in a multitier …

Degrees of freedom for the MIMO multi-way relay channel

Y Tian, A Yener - IEEE Transactions on Information Theory, 2014 - ieeexplore.ieee.org
This paper investigates the degrees of freedom (DoF) of the L-cluster, K-user MIMO multiway
relay channel, where users in each cluster wish to exchange messages within the cluster …

Achievable degrees of freedom on K-user Y channels

K Lee, N Lee, I Lee - IEEE Transactions on Wireless …, 2012 - ieeexplore.ieee.org
In this paper, we consider K-user Y channels where K users simultaneously exchange
messages with each other via an intermediate relay. Degrees of freedom (DOF) of Y …

An intelligent energy efficient cooperative MIMO-AF multi-hop and relay based communications for Unmanned Aerial Vehicular networks

S Kanithan, NA Vignesh, E Karthikeyan… - Computer …, 2020 - Elsevier
Abstract Unmanned Aerial Vehicles (UAVs) are recently used for both civilian and military
applications in worldwide. Energy Efficiency (EE) is an exceptional design approach for …

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
We study the degrees of freedom (DOF) of a multiple-input multiple-output (MIMO) two-way
X relay channel, where there are two groups of source nodes and one relay node, each …

Signal alignment: Enabling physical layer network coding for MIMO networking

R Zhou, Z Li, C Wu, C Williamson - IEEE transactions on …, 2013 - ieeexplore.ieee.org
We apply signal alignment (SA), a wireless communication technique that enables physical
layer network coding (PNC) in multi-input multi-output (MIMO) wireless networks. Through …

Space–time physical-layer network coding

N Lee, RW Heath - IEEE Journal on Selected Areas in …, 2014 - ieeexplore.ieee.org
A space-time physical-layer network coding (ST-PNC) method is presented for information
exchange among multiple users over fully connected multiway relay networks. The method …

New upper degree of freedom in transmission system based on wireless G-MIMO communication channel

X Chen, L Pang, P Guo, X Sun, Z Xue, N Arunkumar - Cluster Computing, 2019 - Springer
We study a general type of multiple-input multiple-output (G-MIMO) relay channels, which
consist of two groups (A and B) of source nodes and one relay node. Both groups have …

Feasibility conditions of signal space alignment for network coding on K-user MIMO Y channels

K Lee, N Lee, I Lee - 2011 IEEE International Conference on …, 2011 - ieeexplore.ieee.org
In this paper, we consider K-user MIMO Y channels where K users simultaneously exchange
messages with each other via an intermediate relay. Degrees of freedom (DOF) of this …

Degrees of freedom of asymmetrical multi-way relay networks

F Sun, E De Carvalho - 2011 IEEE 12th International Workshop …, 2011 - ieeexplore.ieee.org
In this paper, we introduce an asymmetrical multi-way relay channel where a base station
conveys independent symbols to K different users while receiving independent symbols …