Title :
An Optimization Transmission Algorithm in MIMO Multiuser Downlinks and Application in TD-SCDMA System
Author :
Luo Xin-bo ; Xie Xian-Zhong ; Feng Yuan ; Yang Liu
Author_Institution :
Key Lab. of Mobile Commun. Technol., Chongqing Univ. of Posts & Telecommun., Chongqing
Abstract :
This paper investigates an optimization transmission algorithm in MIMO multiuser downlinks and applies it in TD-SCDMA. A generalized optimization criterion of the JT total transmit signal and optimization of spatial characteristics of the total transmit signal in the case of the omnidirectional uniform distribution of direction of departure are introduced respectively, which can directly eliminate intersymbol interference and intracell multiple access interference. Simulation proves its performance in the TD-SCDMA system.
Keywords :
MIMO communication; code division multiple access; interference suppression; radio links; MIMO multiuser downlinks; TD-SCDMA system; intersymbol interference elimination; intracell multiple access interference elimination; joint transmission total transmit signal; omnidirectional uniform distribution; optimization transmission algorithm; spatial characteristics optimization; Communications technology; Contracts; Downlink; Intersymbol interference; MIMO; Mobile communication; Multiple access interference; Receiving antennas; Time division synchronous code division multiple access; Vectors;
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.2007.106
