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One of the drawback of multicarrier code division multiple access (MC CDMA) is the high peak to average power ratio (PAPR). In this paper A novel scheme based on pulse shaping described for PAPR reduction. Here three different pulse shaping filters (Raised cosine, Sinc power pulse and Nyqist pulse) are described for PAPR reduction in MC CDMA system. The method is based on the proper selection of the pulses for shaping the different sub carriers of the MC CDMA modulation scheme. It is shown by computer simulation that the scheme achieves the significant improvement in PAPR reduction in MC CDMA system. Its implementation complexity is much low in comparison to the previous published methods. Thus pulse shaping technique can be used not only to shape the spectrum of the transmitted signal but also to reduce its PAPR. In computer simulation It is observed that by using nyquist pulse near about 6.8 db PAPR is obtained. Which is considerable PAPR reduction than a PAPR value of Original MC CDMA signal

Peak to Average Power Ratio Reduction in Mc Cdma System by Using Pulse Shaping Technique