Correlation-Multi-Delay-Shift-Keying for Chaos Based Communications

Herceg, Marijan; Miličević, Kruno; Matić, Tomislav

doi:10.1007/s11277-015-3108-5

Cited by 3 publications

(2 citation statements)

References 9 publications

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“…CHAOS signals are suitable for spread spectrum communications due to broadband and nonperiodic characteristics. In the past few decades, the coherent and noncoherent algorithms of various chaotic communication systems have been proposed [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. Coherent detection requires synchronization of chaotic carriers, for example, chaos shift keying (CSK) [1]; therefore, its application is limited.…”

Section: Introductionmentioning

confidence: 99%

“…To overcome the shortcoming of traditional DCSK, researchers have proposed a number of improvements. For example, in [4], Herceg et al introduce the correlation multidelay shift keying (CMDCK). In their proposal, the reference slot and the data slot that delays different chip times are subtracted to transmit the multibit information to improve the data rate.…”

Section: Introductionmentioning

confidence: 99%

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Design and Performance Analysis of MISO-SRMR-DCSK System over Rayleigh Fading Channels

Zhang

Wang

et al. 2018

International Journal of Antennas and Propagation

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The major drawback of the differential chaos shift keying (DCSK) system is that equal time and energy are spent on the reference and data signal. This paper presents the design and performance analysis of a short reference multifold rate DCSK (SRMR-DCSK) system to overcome the major drawback. The SRMR-DCSK system is proposed to enhance the data rate of the short reference differential chaos shift keying (SR-DCSK) system. By recycling each reference signal in SR-DCSK, the data slot carries N bits of data and by P times. As a result, compared with SR-DCSK, the proposed system has a higher data transmission rate and evaluates the energy efficiency with respect to the conventional DCSK system. To further improve the bit-error-rate (BER) performance over Rayleigh fading channels, the multiple-input single-output SRMR-DCSK (MISO-SRMR-DCSK) is also studied. The BER expression of the proposed system is derived based on Gaussian approximation (GA), and simulations in Rayleigh fading channels are performed. Simulation results show a perfect match with the analytical expression.

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