Title :
An improved Tomlinson-Harashima Precoding based on lattice reduction for MIMO two-way relay systems
Author :
Lin Wang ; Guosheng Rui
Author_Institution :
Dept. of Electron. & Inf. Eng., Naval Aeronaut. & Astronaut. Univ., Yantai, China
Abstract :
MIMO two-way relay system has demonstrated significant gain in spectral efficiency when source nodes exchange information via a relay node. This paper considers precoding algorithm when all the nodes equipped with multiple antennas. We propose an improved Tomlinson-Harashima Precoding algorithm which is assisted by lattice reduction. The advantages of both THP and lattice reduction are combined. The simulation evaluations show that the proposed algorithm can significantly improve the bit error ratio, achieve full diversity and its complexity is applicable.
Keywords :
MIMO communication; antenna arrays; error statistics; precoding; relay networks (telecommunication); MIMO two-way relay systems; Tomlinson-Harashima precoding algorithm; bit error ratio; lattice reduction; multiple antennas; relay node; source nodes; spectral efficiency; Approximation algorithms; Bit error rate; Complexity theory; Lattices; MIMO; Relays; Signal processing algorithms;
Conference_Titel :
General Assembly and Scientific Symposium (URSI GASS), 2014 XXXIth URSI
Conference_Location :
Beijing
DOI :
10.1109/URSIGASS.2014.6929315
