TY - JOUR
T1 - Joint source and relay design for MIMO multi-relay systems using projected gradient approach
AU - Toding, Apriana
AU - Khandaker, Muhammad R. A.
AU - Rong, Yue
PY - 2014/9/15
Y1 - 2014/9/15
N2 - In this paper, we develop the optimal source precoding matrix and relay amplifying matrices for non-regenerative multiple-input multiple-output (MIMO) relay communication systems with parallel relay nodes using the projected gradient (PG) approach. We show that the optimal relay amplifying matrices have a beamforming structure. Exploiting the structure of relay matrices, an iterative joint source and relay matrices optimization algorithm is developed to minimize the mean-squared error (MSE) of the signal waveform estimation at the destination using the PG approach. The performance of the proposed algorithm is demonstrated through numerical simulations.
AB - In this paper, we develop the optimal source precoding matrix and relay amplifying matrices for non-regenerative multiple-input multiple-output (MIMO) relay communication systems with parallel relay nodes using the projected gradient (PG) approach. We show that the optimal relay amplifying matrices have a beamforming structure. Exploiting the structure of relay matrices, an iterative joint source and relay matrices optimization algorithm is developed to minimize the mean-squared error (MSE) of the signal waveform estimation at the destination using the PG approach. The performance of the proposed algorithm is demonstrated through numerical simulations.
KW - Beamforming
KW - MIMO relay
KW - Non-regenerative relay
KW - Parallel relay network
KW - Projected gradient
UR - http://www.scopus.com/inward/record.url?scp=84919390119&partnerID=8YFLogxK
U2 - 10.1186/1687-1499-2014-151
DO - 10.1186/1687-1499-2014-151
M3 - Article
AN - SCOPUS:84919390119
SN - 1687-1472
VL - 2014
JO - EURASIP Journal on Wireless Communications and Networking
JF - EURASIP Journal on Wireless Communications and Networking
IS - 1
M1 - 151
ER -