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

Volume

2

fYear

2003

fDate

6-9 Oct. 2003

Firstpage

1364

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2003. VTC 2003-Fall. 2003 IEEE 58th

ISSN

1090-3038

Print_ISBN

0-7803-7954-3

Type

conf

DOI

10.1109/VETECF.2003.1285245

Filename

1285245