Title :
Spectral spreading signals for asynchronous CDMA
Author :
Del Re, E. ; Fantacci, R. ; Ronga, L.S.
Author_Institution :
Dipt. Ingegneria Elettronica, LENST, Firenze, Italy
Abstract :
In asynchronous environments, the spreading signature generation is one of the main issues for CDMA communication systems. In this paper it is shown that the spectral design of the spreading signature leads to efficient band-limited signals with attractive cross-correlation properties. The behavior of the proposed spreading signals is simulated in a GSM-like multipath environment and it is compared to that of a traditional DS-CDMA using Walsh binary sequences
Keywords :
bandlimited signals; cellular radio; code division multiple access; correlation methods; multipath channels; signal representation; spread spectrum communication; DS-CDMA; GSM-like multipath environment; Walsh binary sequences; asynchronous CDMA communications; band-limited signals; cross-correlation properties; spectral spreading signals; spreading signature generation; Autocorrelation; Binary sequences; Code standards; Delay effects; Electronic mail; Information retrieval; Multiaccess communication; Shape; Signal design; Signal generators;
Conference_Titel :
Universal Personal Communications, 1998. ICUPC '98. IEEE 1998 International Conference on
Conference_Location :
Florence
Print_ISBN :
0-7803-5106-1
DOI :
10.1109/ICUPC.1998.733655
