A Unifying Discrete-Time Model For Direct Sequence and Multicarrier Variable Rate Broadband CDMA
نویسندگان
چکیده
| Multicarrier CDMA and direct sequence CDMA have been suggested for both narrowband and broadband multiple access systems. A series of concepts have further been proposed for variable rate broadband transmission within a CDMA system. These principally diierent techniques exhibit certain common characteristics that can be exploited. In this paper we propose a generalised unifying discrete-time model for describing both MC-CDMA, DS-CDMA and hybrid DS-MC-CDMA narrowband and variable rate broadband schemes. The model leads to a system description which is similar to the matrix algebraic formulation of a traditional DS-CDMA system .
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