Title :
Performance Analysis of TDD System in Channel Estimate
Author :
Yanwen, Wang ; Zhu, Weihong ; Na, Gao
Author_Institution :
Sch. of Inf. Sci. & Eng., Shandong Univ., Jinan, China
Abstract :
In order to meet the requirement of channel state information in MU-MIMO downlink precoding, we propose a channel estimation scheme called TDMA-MMSE based on single user channel estimation. The performance of this scheme is analyzed. Theoretical analysis and simulation results show that this novel estimation scheme outperforms single user channel estimation. The throughout and BER performance of multi-user MIMO system with estimate channel information is close to the system with perfect channel information at high uplink SNR. Through the theoretical analysis and simulation, it shows that the proposed scheme is practicable.
Keywords :
MIMO communication; channel estimation; error statistics; least mean squares methods; precoding; time division multiple access; BER performance; MU-MIMO downlink precoding; TDD system; TDMA-MMSE; channel estimation; multi-user MIMO system; performance analysis; Antennas; Bit error rate; Channel estimation; Downlink; MIMO; Signal to noise ratio; Training;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing (WiCOM), 2011 7th International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-6250-6
DOI :
10.1109/wicom.2011.6040118
