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 :
2/4/1999 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 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; digital radio; interference suppression; signal detection; LMMSE detector; asymptotic convergence; decorrelating detector; dynamic asynchronous CDMA systems; ideal detector; multistage linear successive interference cancellation; multiuser detection; random code time-varying CDMA systems; short-code time-invariant systems; simulation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19990158
