Title :
Transmission technique for a downlink multiuser MIMO system operating under imperfect CSI at transmitter
Author :
Uthansakul, P. ; Bialkowski, M.E.
Author_Institution :
Suranaree Univ. of Technol., Nakhonratchasima
Abstract :
The knowledge of channel state information (CSI) at the receiver or transmitter is the key factor in devising a suitable transmission technique for a multiple input multiple output (MIMO) system. This paper investigates an impact of imperfect CSI at transmitter on the performance of a downlink multiuser MIMO system. A new transmission technique is proposed to enhance the system performance under such a condition. The simulation results confirm the advantageous of the proposed technique over the other techniques presented in the MIMO literature.
Keywords :
MIMO communication; radio links; wireless channels; channel state information; downlink multiuser MIMO system; imperfect CSI; multiple input multiple output system; receiver; transmission technique; transmitter; Bit error rate; Channel state information; Downlink; MIMO; Random variables; Receiving antennas; Signal to noise ratio; System performance; Transmitters; Transmitting antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2007 IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-0877-1
Electronic_ISBN :
978-1-4244-0878-8
DOI :
10.1109/APS.2007.4396443
