Title :
Investigations of bit error floors for multi-carrier spread-spectrum CDMA systems with RAKE receiver in frequency-selective channels
Author :
Nahler, Achim ; Kühne, Jörg ; Fettweis, Gerhard P.
Author_Institution :
Tech. Univ. Dresden, Germany
Abstract :
In this paper, a multi-carrier spread-spectrum (MC-SS) code division multiple access (CDMA) system with RAKE receiver is investigated in a multi-user environment. The impact of the non-ideal MC-SS code signal auto- and cross-correlation properties on the system performance is examined. Terms for the probability of bit errors are derived considering these correlation behaviors. Furthermore, the performance of a MC-SS CDMA system is compared with a direct-sequence spread-spectrum (DS-SS) system based on Gold sequences
Keywords :
code division multiple access; correlation methods; error statistics; receivers; spread spectrum communication; DS-SS; Gold sequences; MC-SS code division multiple access; RAKE receiver; bit error floors; code signal auto-correlation properties; code signal cross-correlation; direct-sequence spread-spectrum; frequency-selective channels; multi-carrier spread-spectrum CDMA; performance; system performance; AWGN; Autocorrelation; Bit error rate; Fading; Frequency domain analysis; Gold; Interference; Multiaccess communication; Multipath channels; Spread spectrum communication;
Conference_Titel :
Spread Spectrum Techniques and Applications, 1998. Proceedings., 1998 IEEE 5th International Symposium on
Conference_Location :
Sun City
Print_ISBN :
0-7803-4281-X
DOI :
10.1109/ISSSTA.1998.726220
