A Multiple Carrier Scheme for Chaos-Based Digital Communication Systems

In wireless chaotic communications, inter-symbol interference (ISI) caused by multipath channel may be serious and channel equalization becomes difficult. This paper proposes a multiple carrier scheme for chaotic communications. The scheme is to convert a serial high-rate data stream onto multiple parallel low-rate sub-streams. Theoretically multiple carrier scheme is efficiently capable of decreasing ISI and implementing equalization in frequency domain with simple method. Therefore chaotic communication systems with multiple carrier scheme gets better performance over multipath channel and it is proved through simulation.