This paper proposes a hybrid extended OFDM-CDMA modulation technique which can be used principally in mobile communication. It supports the advantages of both of the OFDM and the CDMA systems. The detailed specification is set down. The examination is partitioned into two divisions that are the transmitter and the receiver. The channel which has been used by the simulation is set to linear time-varying filter channel. The performance of these system has been tested by extensive simulations and compared with the OFDM and the CDMA. In very noisy multipath channel the proposed hybrid scheme works e#ciently and gives good Bit Error Rate value
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