Chaos Code Division Multiplexing Communication System

In this paper a novel concept of data transmission system based on the orthogonal chaotic code division multiplexing (CDM) is discussed. The algorithm how to create a full set of orthogonal binary sequences from a single chaotic sequence is proposed. Moreover, the criteria for selection of the chaotic sequence for the particular communication channel statistics are formulated. Performance of the transmission system is evaluated using numerical simulations and side by side comparison to the orthogonal frequency division multiplexing (OFDM) is provided. It is shown that in some cases the orthogonal chaotic CDM transmission system employing set of binary sequences, which is tailored to the particular communication channel, outperforms OFDM.