Title :
Joint beamforming, water-filling, and diversity coding in MIMO systems with CSIT uncertainty
Author :
Chongbin Xu ; Ping, Li ; Yuan, Xiaojun ; Lin, Xiaokang
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
In this paper, we study the transmission problem in multiple-input multiple-output (MIMO) systems with imperfect channel state information at the transmitter (CSIT). A scheme based on joint FEC coding and linear precoding at the transmitter and iterative linear minimum mean squared error (LMMSE) detection at the receiver is considered. The new scheme combines the advantages of beamforming, water-filling, and diversity coding. Simulation results show that the proposed scheme can utilize the available CSIT efficiently and achieve significant performance gain.
Keywords :
MIMO communication; array signal processing; diversity reception; forward error correction; iterative methods; least mean squares methods; linear codes; precoding; radio transmitters; wireless channels; CSIT Uncertainty; FEC coding; MIMO system; channel state information; diversity coding; forward error control code; iterative linear minimum mean squared error detection; joint beamforming; linear preceding; multiple-input multiple-output system; transmitter; water-filling; Mobile communication; Simulation; Variable speed drives; beamforming; imperfect CSIT; iterative LMMSE detection; precoding; water-filling and diversity coding;
Conference_Titel :
Turbo Codes and Iterative Information Processing (ISTC), 2010 6th International Symposium on
Conference_Location :
Brest
Print_ISBN :
978-1-4244-6744-0
Electronic_ISBN :
978-1-4244-6745-7
DOI :
10.1109/ISTC.2010.5613866
