Title :
Transmitter Design for MIMO Downlink System Using Beamforming
Author :
Hu, Ning ; Zhong, Xiaofeng ; Zhou, Shidong ; Wang, Jing
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing
Abstract :
In a multi-user MIMO downlink system, due to the limitation on the number of transmit antennas, we consider employing zero-forcing beamforming (ZFBF) and oblique projection beamforming (OPBF) as the spatial multiplexing strategies when there are many users to be supported simultaneously. Based on the analysis of ZFBF and OPBF, we show these various linear transmitter designs that offer low complexity and high performance for the practical application, mitigating co-channel interference.
Keywords :
MIMO communication; cochannel interference; radio transmitters; transmitting antennas; MIMO downlink system; co-channel interference; oblique projection beamforming; spatial multiplexing; transmit antennas; transmitter design; zero-forcing beamforming; Array signal processing; Design engineering; Downlink; Information science; Interchannel interference; MIMO; Performance analysis; Receiving antennas; Transmitters; Transmitting antennas;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2007. WiCom 2007. International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1311-9
DOI :
10.1109/WICOM.2007.90
