Title :
Memory search multiuser detector in DS/CDMA systems
Author_Institution :
Nat. Mobile Commun. Res. Lab., Southeast Univ., Nanjing, China
fDate :
5/23/2002 12:00:00 AM
Abstract :
The optimal multiuser detector (MUD) in DS/CDMA systems requires the solution of a NP-hard combinatorial optimisation problem (COP). A near optimal MUD based on solving the COP with memory search method is proposed. With almost the same computational complexity as the parallel interference cancellation (PIC) MUD, it produces a better performance gain than PIC-MUD
Keywords :
code division multiple access; combinatorial mathematics; computational complexity; multiuser channels; optimisation; signal detection; DS-CDMA systems; NP-hard combinatorial optimisation problem; computational complexity; memory search method; near optimal multiuser detector; parallel interference cancellation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20020367
