The simulation of the proposed and traditional MC-CDMA systems has been investigated. It has been shown that the new algorithm is widely active to work under the AWGN channel characteristics. A gain of 15 dB was obtained for the new suggested method in comparing with the traditional technique when both are operated without zero padding. The losses is increased by a 3 dB for the traditional model while it is approximately not affected by adding the zeros at the transmitter side in the suggested model, and this leads to additional saved power, namely the gain will be 18 dB for the new proposed model at BER=10-4.