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Future wireless systems such as 3G and beyond 3G cellular need flexibility to provide subscribers with a variety of services such as voice, data, images, and video. CDMA (Code Division Multiple Access) has proved very successful for large scale cellular voice systems, as well as has been considered to be a candidate system to support multimedia services in mobile communications. So it could be assumed that, future wireless communication systems should be an extension of CDMA. Here, in this paper we exploit the advantages of the novel MC-CDMA (Multicarrier CDMA) scheme as a promising alternative of multiple access technique in 3G wireless architecture.