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Presents a study which introduced correlation-based communication schemes, correlation delay shift keying and symmetric chaos shift keying. System description of the communication schemes; Performance analysis; Conclusion.

Presents an approach to communication with chaotic signals, which demonstrates good performance in the presence of channel distortions. How the binary information is modulated onto the pulse chain; Basic design principles for the chaotic-pulse generator and its synchronization; Discussion on the possibilities of multiuser communication using chaotic-pulse-position modulation.