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Chaos Shift Keying Based on In-Phase and Anti-Phase Chaotic Synchronization
Toshimitsu USHIO Takaharu INNAMI Shinzo KODAMA
Publication
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Vol.E79-A
No.10
pp.1689-1693 Publication Date: 1996/10/25 Online ISSN:
DOI: Print ISSN: 0916-8508 Type of Manuscript: Special Section PAPER (Special Section on Nonlinear Theory and its Applications (NOLTA)) Category: Sequence, Time Series and Applications Keyword: chaos, synchronization, digital communication,
Full Text: PDF>>
Summary:
Chaos shift keying (CSK) is a modulation method in digital communication systems using chaotically modulated signals. This paper proposes novel CSK which utilizes two types of chaotic synchronization called in-phase and anti-phase chaotic synchronization. In this method, binary signals are mapped into two phases of chaotic synchronization, and a transmitter generates a two-phase-shift-keyed chaotic signal. So it will be called chaotic phase shift keying (CPSK) in this paper. This method is simpler than that based on two pairs of different chaotic systems. We also discuss an effect of noise in transmission lines.
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