In this paper are described some new approaches to the definition of CDMA spreading functions. The simplest method increases the code space up to 50%. The most sophisticated one performs a very strong rejection to the delayed replicas of the interfering signals. Several advantages have also been found in the FFT implementation of PS-CDMA transmitters and receivers, the elimination of the analog matched filter being the most attractive one. Theoretical results have been supported by computer simulations, and comparisons with the traditional DS-CDMA design of spreading functions are also included.
PS-CDMA: spreading signals for CDMA designed in the frequency domain using perfect sequences / E. Del Re;R. Fantacci;L.S. Ronga. - STAMPA. - 6:(1998), pp. 3420-3425. (Intervento presentato al convegno IEEE GLOBECOM 1998) [10.1109/GLOCOM.1998.775837].
PS-CDMA: spreading signals for CDMA designed in the frequency domain using perfect sequences
DEL RE, ENRICO;FANTACCI, ROMANO;
1998
Abstract
In this paper are described some new approaches to the definition of CDMA spreading functions. The simplest method increases the code space up to 50%. The most sophisticated one performs a very strong rejection to the delayed replicas of the interfering signals. Several advantages have also been found in the FFT implementation of PS-CDMA transmitters and receivers, the elimination of the analog matched filter being the most attractive one. Theoretical results have been supported by computer simulations, and comparisons with the traditional DS-CDMA design of spreading functions are also included.File | Dimensione | Formato | |
---|---|---|---|
PS-CDMA spreading signals for CDMA designed in the frequency domain using perfect sequences.pdf
accesso aperto
Descrizione: versione a stampa
Tipologia:
Pdf editoriale (Version of record)
Licenza:
Open Access
Dimensione
367.71 kB
Formato
Adobe PDF
|
367.71 kB | Adobe PDF |
I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.