Random & AWGN road for MC-CDMA & CDMA bus to phase hide — A MUX in MUX stego

The safety of confidential information has always been a major concern everywhere ranging from the government, and defense details to our personal details. The increase in the illegal activities like financial theft, infringement, etc has necessitated the need for more secure systems. The level of safety required is also higher with the increase in the level of confidentiality of the data. In this paper, a novel information hiding method has been proposed for CDMA and MCCDMA in signal mapper block. In this paper different modulation scheme like BPSK, QPSK and 8-QAM are employed to study the performance of the proposed embedding method. It is found that introducing additional information in the signal mapper block is not affecting the performance of the regular transmission and also if the Signal to Noise Ration (SNR) is good enough then additional information would reveal itself in extraction on the receiver.