Title :
Density evolution for multistage CDMA multiuser detector
Author :
Tanaka, Toshiyuki
Author_Institution :
Dept. of Electr. & Inf. Eng., Tokyo Metropolitan Univ., Japan
Abstract :
An analytical framework to analyze the stage-by-stage detection dynamics of the multistage CDMA multiuser detector is presented. The density evolution idea is applied to analyze the multistage detector. Message distribution is treated basically by a Gaussian approximation, but interstage correlation of messages is systematically taken into account, which turns out to provide significant improvement.
Keywords :
Gaussian distribution; code division multiple access; multiuser detection; CDMA; Gaussian approximation; density evolution; interstage correlation of messages; message distribution; multistage multiuser detector; stage-by-stage detection dynamics; Baseband; Biological neural networks; Detectors; Equations; Gaussian approximation; Information analysis; Multiaccess communication; Power control; Power system modeling; Radiofrequency interference;
Conference_Titel :
Information Theory, 2002. Proceedings. 2002 IEEE International Symposium on
Print_ISBN :
0-7803-7501-7
DOI :
10.1109/ISIT.2002.1023295
