International Journal of Computer Applications
In this paper, the author deals with simulation of Generalized Discrete Fourier Transform (GDFT) spreading codes used in modulation technique in Code Division Multiple Access (CDMA) on real time system using MATLAB environment. Binary sequences can be used as various spreading code in digital modulation technique. The spreading codes are used to increase the spread spectrum and proper utilization of the spread spectrum in cellular communication system. In CDMA for digital modulation technique various spreading codes like gold codes, M-ary binary sequences, Walsh codes and constant modulus function set (GDFT) are used.