Title :
An LMMSE detector for a spread-spectrum system based on random permutations over frequency selective fading channels
Author :
Coulon, Martial ; Roviras, Daniel
Author_Institution :
ENSEEIHT-IRIT/TeSA, Toulouse, France
Abstract :
This article deals with the joint detection of bits for a spread-spectrum system based on random permutations, in the case of a transmission over frequency-selective channels. A linear minimum mean-squares error approach is studied, whose objective consists of mitigating both the multi-access interference and the intersymbol interference. The proposed system is compared with the DS-CDMA system. The theoretical study is confirmed by simulation results.
Keywords :
3G mobile communication; fading channels; interference suppression; intersymbol interference; least mean squares methods; random processes; signal detection; spread spectrum communication; LMMSE detector; frequency selective fading channels; intersymbol interference; linear minimum mean-squares error; multi-access interference mitigation; random permutations; spread-spectrum system; third generation mobile systems; Bit error rate; Clocks; Detectors; Fading; Frequency division multiaccess; Interference; Mean square error methods; Multiaccess communication; Sampling methods; Spread spectrum communication;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2005. Proceedings. (ICASSP '05). IEEE International Conference on
Print_ISBN :
0-7803-8874-7
DOI :
10.1109/ICASSP.2005.1416104
