A Novel High Data Rate Modulation Scheme Based on Chaotic Signal Separation

Based on separation of the sum of chaotic signals, this paper proposes a novel spread spectrum modulation scheme-initial condition modulation (ICM), which is suitable for high data rate communications. The success of signal separation makes it possible to transmit multiple information streams through single channel. This technique significantly improves data transmission rate and implies good information security. Our theoretical analysis shows that this approach can also cleanse the additive white Gaussian noise imposed by communication channel. Computer simulations confirm that the proposed method has a good noise performance.