Title :
Tomlinson-Harashima precoding optimization for multi-user MIMO systems in indoor scenarios
Author :
Guoxian Lu ; Muqing Wu ; Si Zhou ; Feng Zheng
Author_Institution :
Lab. of Network Syst. Archit. & Convergence, Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
In this paper, it is shown that indoor scenarios have the merits of high signal-to-noise ratio and low spatial channel correlation due to less interference and rich scattering. The merits are extremely helpful to Tomlinson-Harashima precoding for multiple-antenna and multi-user systems. Therefore, a novel Tomlinson-Harashima precoding optimization scheme for multi-user MIMO systems in indoor scenarios has been put forward. The main idea behind the optimization scheme is to orthogonalize the indoor channel matrix. The BER performance is much better than those of conventional Tomlinson-Harashima precoding and zero-forcing precoding.
Keywords :
MIMO communication; antenna arrays; error statistics; indoor radio; multi-access systems; optimisation; precoding; Tomlinson-Harashima precoding optimization; bit error rate; indoor channel matrix; multiple antenna systems; multiuser MIMO systems; signal-to-noise ratio; spatial channel correlation; zero-forcing precoding; Tomlinson-Harashima precoding(THP); channel capacity; indoor scenarios; multiple-input multiple-output (MIMO);
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.2012.6511353
