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Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on

Issue 12 • Date Dec. 2000

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Displaying Results 1 - 12 of 12
  • Theoretical noise performance of correlator-based chaotic communications schemes

    Publication Year: 2000, Page(s):1692 - 1701
    Cited by:  Papers (49)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (145 KB)

    In wireless local area networks and indoor communications, multipath propagation limits the performance of data communications systems. To overcome the multipath propagation problem, a spread spectrum system has to be used. The chaotic communications technique, where inherently wideband chaotic basis functions are used, offers a cheap alternative to conventional spread spectrum communications. Unf... View full abstract»

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  • List of reviewers

    Publication Year: 2000, Page(s):1733 - 1737
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    Freely Available from IEEE
  • Author index

    Publication Year: 2000, Page(s):1738 - 1744
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    Freely Available from IEEE
  • Subject index

    Publication Year: 2000, Page(s):1744 - 1764
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    Freely Available from IEEE
  • Special issue on "noncoherent chaotic communications"

    Publication Year: 2000, Page(s):1661 - 1662
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (24 KB)

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  • Noise performance of chaotic communication systems

    Publication Year: 2000, Page(s):1726 - 1732
    Cited by:  Papers (22)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (244 KB)

    We present cumulant analysis tools suitable fur the study of chaos communication systems. The approach uses random process models for all signals involved. The analysis is applied to the differential chaos shift keying (DCSK) scheme and its close relative-the transmitted reference (TR) approach under additive white Gaussian noise channel conditions. Approximative as well as exact performance figur... View full abstract»

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  • Optimal detection of differential chaos shift keying

    Publication Year: 2000, Page(s):1712 - 1719
    Cited by:  Papers (24)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (184 KB)

    Recent advances in the development of communication schemes based on chaos suggest that differential chaos shift keying (DCSK) is one of the most promising candidates for a feasible implementation. Traditionally, the demodulation-decoding of DCSK has been achieved by means of a noncoherent approach based on a correlation detector This approach in general works fur any differential noise shift keyi... View full abstract»

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  • Performance analysis of correlation-based communication schemes utilizing chaos

    Publication Year: 2000, Page(s):1684 - 1691
    Cited by:  Papers (78)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB)

    Using chaotic signals in spread-spectrum communications has a few clear advantages over traditional approaches. Chaotic signals are nonperiodic, wideband, and more difficult to predict, reconstruct, and characterize than periodic carriers. These properties of chaotic signals make it more difficult to intercept and decode the information modulated upon them. However, many suggested chaos-based comm... View full abstract»

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  • Application of noise reduction to chaotic communications: a case study

    Publication Year: 2000, Page(s):1720 - 1725
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (160 KB)

    Over the past few years, several methods have been proposed for decontaminating noisy chaotic signals by exploiting the short-term predictability of chaotic signals. This work evaluates the effectiveness, for a differential chaos shift keying (DCSK) telecommunications system, of a noise reduction approach using a deterministic optimization technique. Noise reduction is governed by a cost function ... View full abstract»

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  • Performance evaluation of FM-DCSK modulation in multipath environments

    Publication Year: 2000, Page(s):1702 - 1711
    Cited by:  Papers (39)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (196 KB)

    G. Kolumban [2000] has shown that, under specified conditions, the noise performance of frequency-modulated differential chaos shift keying (FM-DCSK) in a single-ray additive white Gaussian noise channel is independent of the shape of the underlying waveform. This paper discusses the qualitative features of the FM-DCSK system and characterizes the performance of this system in standard reference m... View full abstract»

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  • Stochastic-calculus-based numerical evaluation and performance analysis of chaotic communication systems

    Publication Year: 2000, Page(s):1663 - 1672
    Cited by:  Papers (22)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (224 KB)

    Performance evaluation of a self-synchronizing Lorenz chaotic system is formulated as a stochastic differential equation problem. Based on stochastic calculus, we provide a rigorous formulation of the numerical evaluation and analysis of the self-synchronization capability and error probabilities of two chaotic Lorenz communication systems with additive white Gaussian noise disturbance. By using t... View full abstract»

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  • Communications using chaos≫MINUS. III. Performance bounds for correlation receivers

    Publication Year: 2000, Page(s):1673 - 1683
    Cited by:  Papers (46)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (184 KB)

    For pt. II, see ibid., vol. 45, p. 1129-40 (1998). In a digital communications system, data is transmitted from one location to another by mapping bit sequences to symbols, and symbols to sample functions of analog waveforms. The analog waveform passes through a bandlimited (possibly time-varying) analog channel, where the signal is distorted and noise is added. In a typical conventional system, t... View full abstract»

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