Title :
An improved MMSE Tomlinson-Harashima precoding for the joint transceiver of MIMO systems
Author :
Guosheng Rui ; Haibo Zhang ; Song Zhang
Author_Institution :
Signal & Inf. Process. Provincial Key Lab. in Shandong, Naval Aeronaut. & Astronaut. Univ., Yantai, China
Abstract :
The minimum mean square error (MMSE) Tomlinson-Harashima precoding (THP) algorithm can provide a solution for the joint transceiver of MIMO systems by pre-equalizing the interlayer interference. However, the MMSE THP algorithm can´t achieve full diversity and its bit error rate (BER) performance is unsatisfactory. In this paper, an improved MMSE THP algorithm is proposed. In this algorithm, the channel gain matrix is decomposed with geometric mean decomposition (GMD) to obtain identical sub-channels and translated into a new matrix with smaller condition number using lattice reduction. The simulation results show that the proposed algorithm can improve the BER performance, achieve full diversity and its complexity is applicable.
Keywords :
MIMO communication; equalisers; error statistics; least mean squares methods; matrix algebra; precoding; radio transceivers; radiofrequency interference; BER performance; GMD; MIMO systems; MMSE THP algorithm; bit error rate; channel gain matrix; geometric mean decomposition; improved MMSE Tomlinson-Harashima precoding algorithm; interlayer interference; joint transceiver; lattice reduction; minimum mean square error precoding algorithm; preequalization; GMD; MMSE; THP; lattice reduction;
Conference_Titel :
Communication Technology (ICCT), 2012 IEEE 14th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4673-2100-6
DOI :
10.1109/ICCT.2012.6511383
