Title :
A CDMA-MIMO system with multiple-dimension-decorrelating-detectors
Author :
Inokura, Hiroki ; Otake, Kohei ; Kuroyanagi, Noriyoshi ; Tomita, Mitsuhiro ; Ozawa, Satoru ; Suehirc, N.
Author_Institution :
Hosei Univ., Tokyo, Japan
Abstract :
To improve the diversity gain performance in CDMA-MIMO systems, multi-user detection with decorrelating detectors (DD) is examined. Without using error-correcting codes, it is confirmed that tremendous performance improvements may be achieved by enhancing the regularity of the decorrelating matrix by inserting dummy response insertion and by utilizing multiple dimensions of the matrix component vector made of plural receive antenna outputs. These improvements increase both the actual process gain and the maximum number of active users.
Keywords :
MIMO systems; Rayleigh channels; code division multiple access; decorrelation; diversity reception; mobile radio; multiuser detection; CDMA-MIMO system; Rayleigh faded conditions; decorrelating matrix regularity; diversity gain; dummy response insertion; mobile communications; multiple matrix component vector dimensions; multiple-dimension-decorrelating-detectors; multiuser detection; plural receive antenna outputs; Baseband; Decorrelation; Detectors; Diversity methods; MIMO; Mobile communication; Multiuser detection; Receiving antennas; Transmitters; Transmitting antennas;
Conference_Titel :
Vehicular Technology Conference, 2003. VTC 2003-Fall. 2003 IEEE 58th
Print_ISBN :
0-7803-7954-3
DOI :
10.1109/VETECF.2003.1285245
