Title :
Joint detection for a random permutations-based spread-spectrum system over frequency selective time-varying channels
Author :
Coulon, Martial ; Roviras, Daniel
Author_Institution :
INP-ENSEEIHT, Toulouse
Abstract :
In this paper is studied the performance of a spread-spectrum system based on random permutations, in the case of a transmission over frequency-selective time-varying channels. The detection is achieved using a linear minimum mean-square error approach. The obtained detector is compared to the detector derived in the same context for the DS-CDMA system. This comparison shows that this new system performs in general better when the channels are time-varying
Keywords :
code division multiple access; least mean squares methods; mobile radio; spread spectrum communication; time-varying channels; DS-CDMA system; frequency selective time-varying channels; joint detection; linear minimum mean-square error approach; random permutations; random permutations-based spread-spectrum system; Clocks; Communication systems; Detectors; Frequency; Multiaccess communication; Sampling methods; Spread spectrum communication; Time varying systems; Time-varying channels; Zinc;
Conference_Titel :
Global Telecommunications Conference, 2005. GLOBECOM '05. IEEE
Conference_Location :
St. Louis, MO
Print_ISBN :
0-7803-9414-3
DOI :
10.1109/GLOCOM.2005.1578083
