Jointly optimal channel and power assignment for dual-hop multi-channel multi-user relaying

M Hajiaghayi, M Dong, B Liang - IEEE Journal on Selected …, 2012 - ieeexplore.ieee.org
We consider the problem of jointly optimizing channel pairing, channel-user assignment,
and power allocation, to maximize the weighted sum-rate, in a single-relay cooperative …

Distributed power allocation in multi-user multi-channel cellular relay networks

S Ren, M Van Der Schaar - IEEE Transactions on Wireless …, 2010 - ieeexplore.ieee.org
In this paper, we consider the amplify-and-forward relaying transmission in the downlink of a
multi-channel cellular network with one base station and multiple relay-destination pairs …

Relay selection for two-way relay channels with MABC DF: A diversity perspective

I Krikidis - IEEE Transactions on Vehicular Technology, 2010 - ieeexplore.ieee.org
We propose relay-selection techniques for a two-way relay channel, where two terminals
simultaneously transmit to each other with the help of a relay. In particular, we focus on a …

Linear precoding designs for amplify-and-forward multiuser two-way relay systems

R Wang, M Tao, Y Huang - IEEE Transactions on Wireless …, 2012 - ieeexplore.ieee.org
Two-way relaying can improve spectral efficiency in two-user cooperative communications. It
also has great potential in multiuser systems. A major problem of designing a multiuser two …

Comparison of two SNR-based feedback schemes in multiuser dual-hop amplify-and-forward relaying networks

JB Kim, D Kim - IEEE communications letters, 2008 - ieeexplore.ieee.org
In this letter, we investigate amplify-and-forward relaying where a source is communicating
with the best user through an intermediate relay that covers multiple users. To reduce the …

Performance analysis of two-way relaying with non-coherent differential modulation

W Guan, KJR Liu - IEEE Transactions on wireless …, 2011 - ieeexplore.ieee.org
This work focuses on a two-way denoise-and-forward relaying system using non-coherent
Differential Binary Phase-Shift Keying (DBPSK) modulation, which has the well-defined …

Duality of MIMO multiple access channel and broadcast channel with amplify-and-forward relays

KS Gomadam, SA Jafar - IEEE Transactions on …, 2010 - ieeexplore.ieee.org
In this work, we consider a two-hop multiuser amplify-and-forward relay network with multi-
antenna nodes. The results are three-fold. First, for any relay amplification matrix D in the …

Performance analysis of multiuser multiple antenna relaying networks with co-channel interference and feedback delay

Y Huang, F Al-Qahtani, C Zhong, Q Wu… - IEEE Transactions …, 2013 - ieeexplore.ieee.org
This paper presents a comprehensive performance analysis of multiuser multiple antenna
amplify-and-forward relaying networks employing opportunistic scheduling with feedback …

Optimal training sequences for channel estimation in bi-directional relay networks with multiple antennas

TH Pham, YC Liang, A Nallanathan… - IEEE Transactions on …, 2010 - ieeexplore.ieee.org
In this letter, we consider a bi-directional relay network in which two users, U 1 and U 2,
exchange their information via a relay station, RS. Multiple antennas are deployed at both …

Impact of channel estimation error on the performance of amplify-and-forward two-way relaying

C Wang, TCK Liu, X Dong - IEEE Transactions on vehicular …, 2012 - ieeexplore.ieee.org
In this paper, the impact of channel-state information (CSI) estimation error on the
performance of an amplify-and-forward two-way multiple relay network has been …