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Modeling and Simulation of CDMA Codes in Scilab

Prior to hardware implementation, simulation is an important step in the study of systems such as Direct Sequence Code Division Multiple Access (DS-CDMA). A useful technique is presented, allowing to model and simulate Linear Feedback Shift Register (LFSR) for CDMA. It uses the Scilab package and its modeling tool for dynamical systems Xcos. PN-Generators are designed for the quadrature-phase modulation and the Gold Code Generator for Global Positioning System (GPS). This study gives a great flexibility in the conception of LFSR and the analysis of Maximum Length Sequences (MLS) used by spread spectrum systems. Interesting results have been obtained, which allow the verification of generated sequences and their exploitation by signal processing tools.

Auteur(s) : Diagana Mouhamed Fadel, Gueye Serigne Bira
Pages : 274-281
Année de publication : 2015
Revue : International Journal of Communications, Network and System Sciences (IJCNS )
N° de volume : 8
Type : Article
Mise en ligne par : GUEYE Serigne Bira