Title :
Systematic approach to multistage linear successive interference cancellation for multiuser detection in dynamic asynchronous CDMA systems
Author :
Ma, Y. ; Tan, P.H. ; Lim, T.J.
Author_Institution :
Centre for Wireless Commun., Singapore
fDate :
11/26/1998 12:00:00 AM
Abstract :
A systematic approach is proposed for the implementation of multistage linear successive interference cancellation (SIC) in dynamic asynchronous CDMA systems. It is shown that the multistage linear SIC can asymptotically converge to the ideal decorrelating or LMMSE detector in the random code time-varying CDMA systems as well as in short-code time-invariant systems. Through simulations it is found that a moderate number of stages gives a performance close to that of an ideal detector
Keywords :
code division multiple access; decorrelation; interference suppression; multiuser channels; time-varying channels; LMMSE detector; dynamic asynchronous CDMA systems; ideal decorrelating detector; multistage linear successive interference cancellation; multiuser detection; random code time-varying CDMA systems; short-code time-invariant systems; systematic approach;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19981613
