Chaotic Communications, their applications and advantages over traditional methods of communication

Riaz, A.; Ali, Maaruf

doi:10.1109/csndsp.2008.4610808

Cited by 36 publications

(19 citation statements)

References 8 publications

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“…Since digital chaotic iterations are constrained in a discrete space with 2 N elements, it is obvious that every chaotic orbit will eventually be periodic and in a cycle with a limited length not greater than 2 N [21], [22]. Generally, each digital chaotic orbit includes two connected parts: 1 which are respectively called "transient branch" and "cycle." Accordingly, l and n+1 are respectively called "transient length" and "cycle period," and l+n is called "orbit length.…”

Section: Decryption Processmentioning

confidence: 99%

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Efficient Image Chaotic Encryption Algorithm with No Propagation Error

Awad¹

2010

ETRI J

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Many chaos-based encryption methods have been presented and discussed in the last two decades, but very few of them are suitable to secure transmission on noisy channels or respect the standard of the National Institute of Standards and Technology (NIST). This paper tackles the problem and presents a novel chaos-based cryptosystem for secure transmitted images. The proposed cryptosystem overcomes the drawbacks of existing chaotic algorithms such as the Socek, Xiang, Yang, and Wong methods. It takes advantage of the increasingly complex behavior of perturbed chaotic signals. The perturbing orbit technique improves the dynamic statistical properties of generated chaotic sequences, permits the proposed algorithm reaching higher performance, and avoids the problem of error propagation. Finally, many standard tools, such as NIST tests, are used to quantify the security level of the proposed cryptosystem, and experimental results prove that the suggested cryptosystem has a high security level, lower correlation coefficients, and improved entropy.

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Section: Decryption Processmentioning

confidence: 99%

“…In recent years, a large amount of work using digital chaotic systems to construct cryptosystems has been done [1]- [4]. Basically, a number of very different approaches to the use of chaos can be found in the literature [5]- [9].…”

Section: Introductionmentioning

confidence: 99%

Efficient Image Chaotic Encryption Algorithm with No Propagation Error

Awad¹

2010

ETRI J

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“…Nevertheless, with a technological developments it is still relevant deals with new possibilities of the circuit realization and mainly with simplification of the designed circuit structure. Also possibility of implementation in the RF area seems to be very interesting [27], [28].…”

Section: Resultsmentioning

confidence: 99%

Analysis and Synthesis of Chaotic Circuits using Memristor Properties

Hrubos

Götthans

2014

Journal of Electrical Engineering

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This paper provides an innovative practical realization of a memristor based chaotic circuit. The first part discusses the mathematical analysis of the proposed system, including calculation of an eigenvalues, bifurcation diagram and largest Lyapunov exponents. Another parts deal with circuitry realization and the influence of parasitic properties of active elements. The circuit simulations obtained by PSpice environment and the practical measurement results on a breadboard are presented in the last part of this paper. The main aim of this work is an innovative realization of the memristor based chaotic circuit with one type of energy-storage element (linear passive capacitor) and with simpler construction in comparison to other circuits. The next contribution consists in verification of designed circuit with respect to influence of parasitic properties of active elements to chaos destruction. K e y w o r d s: differential equations,

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“…There are numerous features of chaotic signals that make them attractive for use in wireless communications. It is theoretically proved that the Lyapunov exponents remain unaltered if a chaotic signal is utilized [9]. In [15] the authors have implemented frequency domain chaotic cognitive radio applying a chaotic sequence onto cognitive radio.…”

Section: Introductionmentioning

confidence: 99%

A Novel Chaotic Communication based Test Signal Approach for Identification of Primary User Emulation Attack in Cognitive Radio Networks

Madbushi¹,

Raut²,

Rukmini³

2018

IJIES

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Abstract:In this paper, a novel method for detection of Primary User Emulation Attack (PUEA) by tagging (adding tag bits) a test signal in chaotic communication is proposed. The tagged test signal is masked by the secondary user using Lorenz chaotic attractor and sent over the channel. However, it doesn't interfere with test signals of other secondary users. The Bit Error Rate (BER) analysis of the received test signal indicates whether the channel is free or is under PUEA. If the BER of the received signal is above the set threshold then it indicates an attack. Moreover, for the first time the concept of test signal to identify whether the channel is occupied by the primary user or an attacker is proposed. It is further suggested to compare the result of the proposed method with the database provided by Spectrum Bridge Inc. (SBI). It is worth mentioning here that the proposed method has made the use of the centralized control approach employed by the Federal Communications Commission (FCC) to combat PUEA. Simulation results in terms of the BER have been analysed and compared with other existing methods to show the efficacy of the proposed method.

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Chaotic Communications, their applications and advantages over traditional methods of communication

Cited by 36 publications

References 8 publications

Efficient Image Chaotic Encryption Algorithm with No Propagation Error

Efficient Image Chaotic Encryption Algorithm with No Propagation Error

Analysis and Synthesis of Chaotic Circuits using Memristor Properties

A Novel Chaotic Communication based Test Signal Approach for Identification of Primary User Emulation Attack in Cognitive Radio Networks

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