Title :
User separation in DS-CDMA systems with unknown long PN spreading codes
Author :
Sidiropoulos, Nicholas D. ; Bro, Rasmus
Author_Institution :
Dept. of Electr. Eng., Virginia Univ., Charlottesville, VA, USA
Abstract :
We consider the user separation problem for CDMA transmissions employing unknown long PN spreading codes. Using the analytical framework underlying our recent results for symbol-periodic spreading, but this time capitalizing on the properties of PN sequences, we show that user separation is possible, provided sufficient spreading is available. Once separated, the individual user data streams may be equalized using single-user blind equalization techniques
Keywords :
blind equalisers; code division multiple access; pseudonoise codes; DS-CDMA systems; PN sequences; analytical framework; individual user data streams; single-user blind equalization techniques; symbol-periodic spreading; unknown long PN spreading codes; user separation problem; Baseband; Blind equalizers; Data models; Delay; Food technology; Multiaccess communication; Multiuser detection; Receiving antennas; Reflector antennas; Signal detection;
Conference_Titel :
Signal Processing Advances in Wireless Communications, 1999. SPAWC '99. 1999 2nd IEEE Workshop on
Conference_Location :
Annapolis, MD
Print_ISBN :
0-7803-5599-7
DOI :
10.1109/SPAWC.1999.783052
