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Since the 1970s, there has been a great deal of research on chaotic systems and the properties of the chaotic signals generated. Chaotic signals are spread-spectrum signals for carrying digital information. Spectrum-spreading is a popular modulation technique for high-speed wireless communications that uses wide bandwidth signals to carry information at relatively low data rates the advantages of this technique is low probability of interception, resistance to jamming, multiple-access capability and mitigation to multipath effect. In addition, chaotic signals can be generated usign simple circuitries, thus lowering the cost of transceivers.
Early study of chaos-based communication systems was focused on a single-user case, but recent research on multiple-access capability in spread-spectrum systems has created the need for a review of hte field. This book presents a detailed study of multiple-access schemes uesd for chaos-based communications.

