The role of synchronization in digital communications using chaos. II. Chaotic modulation and chaotic synchronization

Kolumbán, G.; Kennedy, Michael Peter; Chua, Leon O.

doi:10.1109/81.735435

Cited by 376 publications

(168 citation statements)

References 21 publications

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“…In contrast to a conventional digital modulation scheme, where the transmitted symbols are mapped to a finite set of periodic waveform segments for transmission over a channel, every transmitted symbol in a chaotic modulation scheme is mapped to a non-periodic set of sequences popularly known as chaotic sequences [15]. The cross correlation between the non-periodic sequences behave like random white noise.…”

Section: Chaos Shift Keyingmentioning

confidence: 99%

Application of Modified Chaotic Sine Map in Secure Communication

Saha¹,

Malasani²,

Seventline³

2015

IJCA

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In the recent years, a lot of research has been done in the field of covert chaotic communication involving many known chaotic maps and the results have been very promising. In this paper the generation of binary sequence using modified chaotic sine map is discussed. The auto correlation and the cross correlation properties of the generated sequence is observed. Also, the BER of chaotic shift keying system is analyzed to check the feasibility of the generated sequence in communication purpose. The possibilities of using the generated binary sequences in radar pulse compression techniques is also explored and Peak Side lobe Ratio (PSLR) obtained is compared with other existing binary sequences. General TermsModified sinusoidal iterator, secure communication technique, Pulse compression

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Section: Chaos Shift Keyingmentioning

confidence: 99%

Application of Modified Chaotic Sine Map in Secure Communication

Saha¹,

Malasani²,

Seventline³

2015

IJCA

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“…Chaotic switching is also referred to as chaos shift keying (CSK). A description with deep insights can be found in [61], even though the idea of CSK was proposed a couple of years before [38]. Essentially, chaotic switching is a special type of chaotic parameter modulation: binary modulation.…”

Section: Main Problems In Chaos-based Cryptographymentioning

confidence: 99%

Lessons Learnt from the Cryptanalysis of Chaos-Based Ciphers

Álvarez

Amigó

Arroyo

et al. 2011

Studies in Computational Intelligence

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The idea of using chaotic transformations in cryptography is explicit in the foundational papers of Shannon on secrecy systems (e.g., [96]). Although the word "chaos" was not minted till the 1970s [71], Shannon clearly refers to this very concept when he proposes the construction of secure ciphers by means of measure-preserving, mixing maps which depend 'sensitively' on their parameters. The implementation of Shannon's intuitions had to wait till the development of Chaos Theory in the 1980s. Indeed, it was around 1990 when the first chaos-based ciphers were proposed (e.g., [78], [46]). Moreover, in 1990 chaos synchronization [91] entered the scene and shortly thereafter, the first applications to secure communications followed [56,37]. The idea is remarkably simple: mask the message with a chaotic signal and use synchronization at the receiver to filter out the chaotic signal. The realization though had to overcome the desynchronization induced by the message itself. After this initial stage, the number of proposals which exploited the properties of chaotic maps for cryptographical purposes, grew in a spectacular way.

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“…Chaos synchronization is always a hot topic in nonlinear science community, and plays an important role in chaotic communications because it offers a potential advantage over non-coherent detection in terms of noise performance and data rate when the information is recovered from a noisy distorted signal [21]. There are several kinds of chaos synchronization, such as identical synchronization and phase synchronization.…”

Section: Synchronization Of Chaotic Signalsmentioning

confidence: 99%

A New Architecture of Uwb Radar Utilizing Microwave Chaotic Signals and Chaos Synchronization

Qiao¹,

Shi²,

Jiang³

et al. 2007

PIER

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Abstract-In this paper, we present a new scheme for the realization of a wide-band chaotic RADAR system. The remarkable characteristics of such scheme are: (1) Wide-band chaotic signal generated from microwave chaotic Colpitts oscillator is directly used as the RADAR signal; (2) Chaos synchronization is used to recover the chaotic signal from the back-scattered signal by targets; (3) The intrinsic sensitivities of the chaotic signal to the parameters of the chaotic circuit and to the initial conditions are used to realize the "multi-user" property. System simulations show that such RADAR can still work in an environment when the signal-to-noise ratio (SNR) is lower than −20 dB.

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The role of synchronization in digital communications using chaos. II. Chaotic modulation and chaotic synchronization

Cited by 376 publications

References 21 publications

Application of Modified Chaotic Sine Map in Secure Communication

Application of Modified Chaotic Sine Map in Secure Communication

Lessons Learnt from the Cryptanalysis of Chaos-Based Ciphers

A New Architecture of Uwb Radar Utilizing Microwave Chaotic Signals and Chaos Synchronization

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