Design and Performance Analysis of a Multiuser OFDM Based Differential Chaos Shift Keying Communication System

Kaddoum, Georges

doi:10.1109/tcomm.2015.2502259

Cited by 123 publications

(44 citation statements)

References 33 publications

(75 reference statements)

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“…1b. In this analysis, it is assumed that the largest delay τ L is much shorter than the chaotic sequence duration, that is 0 < τ L ≪ β, which results in negligible intersymbol interference (ISI) [9], [13]. It can be verified that above condition holds for PLC channels [14].…”

Section: Dcsk System Model and Description For Plc Channelsmentioning

confidence: 99%

Differential Chaos Shift Keying: A Robust Modulation Scheme for Power-Line Communications

Kaddoum

Tadayon

2017

IEEE Trans. Circuits Syst. II

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Abstract-The past few years have witnessed a tremendous development in power-line communications (PLC) for the realization of smart grids. Since power lines were not originally intended for conveying high frequency signals, any communication over these lines would be exposed to severe adversarial factors, such as interference, impulsive and phase noise. This elucidates the importance of employing robust modulation techniques and motivates research in this direction. Indeed, the aim of the paper is to propose a differential chaos shift keying (DCSK) modulation scheme as a potential candidate for smart grid communication networks. This DCSK class of non-coherent modulation is very robust against linear and non-linear channel distortions. More importantly, the demodulation process can be carried out without any channel estimator at the receiver side. In this work, we analyse the bit error rate (BER) performance of DCSK over multipath PLC channels in which phase, background and impulsive noise are present. A simulator is developed to verify the performance of the proposed DCSK against direct sequence code division multiple access (DS-CDMA) and direct sequence differential phase shift keying (DS-DPSK). The results presented in this work prove the advantages of this low-cost noncoherent modulation technique for PLC systems over its rivals.

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Section: Dcsk System Model and Description For Plc Channelsmentioning

confidence: 99%

Differential Chaos Shift Keying: A Robust Modulation Scheme for Power-Line Communications

Kaddoum

Tadayon

2017

IEEE Trans. Circuits Syst. II

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“…to determine the subcarriers that will be active, while the remaining bits are conveyed by DCSK through these active carriers. To allow multiple-access and reduce bandwidth demands of MC-DCSK, a multi-user orthogonal-frequencydivision-multiplexing DCSK (MU-OFDM-DCSK) is proposed in [22]. In MU-OFDM-DCSK, the spreading operation is performed in the time domain over multiple orthogonal frequencies.…”

Section: Introductionmentioning

confidence: 99%

Permutation Index DCSK Modulation Technique for Secure Multiuser High-Data-Rate Communication Systems

Herceg

Kaddoum

Vranješ

et al. 2018

IEEE Trans. Veh. Technol.

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130

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Abstract-A new non-coherent scheme called Permutation Index Differential Chaos Shift Keying (PI-DCSK) modulation is proposed in this paper. This original design aims to enhance data security, energy and spectral efficiencies, compared to its rivals. In the proposed PI-DCSK scheme, each data frame is divided into two time slots in which the reference chaotic signal is sent in the first time slot and a permuted replica of the reference signal multiplied by the modulating bit is sent in the second time slot. In particular, the bit stream is divided at the transmitter into blocks of n + 1 bits, where n mapped bits are used to select one of the predefined reference sequence permutations, while a single modulated bit is spread by the permuted reference signal just mentioned. At the receiver side, the reference signal is recovered first, then all permuted versions of it are correlated with the data-bearing signal. The index of the correlator output with maximum magnitude will estimate the mapped bits, while the output content of the corresponding correlator is compared to a zero threshold to recover the modulated bit. Moreover, a new multiple access (MA) method based on the proposed scheme is described and analysed. Analytical expressions for the error performance in single-user and multi-user environments are derived for additive white Gaussian noise (AWGN) and multipath Rayleigh fading channels, respectively. Furthermore, the performance of the proposed PI-DCSK system is analysed and compared with other non-coherent chaotic modulation schemes and is found to be promising.Index Terms-Chaos-based communication systems, permutation index differential chaos shift keying (PI-DCSK), bit error rate (BER), non-coherent detection, multiple access (MA).

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“…On the other hand, an Multi-User Orthogonal frequency division multiplexing DCSK (OFDM-DCSK) system was then proposed in [193] to reduce the usage of wide bandwidths. As shown in Fig.…”

Section: B Non-coherent Digital Modulations 1) Differential Chaos Shmentioning

confidence: 99%

Wireless Chaos-Based Communication Systems: A Comprehensive Survey

2016

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Since the early 1990s, a large number of chaos-based communication systems have been proposed exploiting the properties of chaotic waveforms. The motivation lies in the significant advantages provided by this class of non-linear signals. For this aim, many communication schemes and applications have been specially designed for chaos-based communication systems where energy, data rate, and synchronization awareness are considered in most designs. Recently, the major focus, however, has been given to the non-coherent chaos-based systems to benefit from the advantages of chaotic signals and noncoherent detection and to avoid the use of chaotic synchronization, which suffers from weak performance in the presence of additive noise. This paper presents a comprehensive survey of the entire wireless radio frequency chaos-based communication systems. First, it outlines the challenges of chaos implementations and synchronization methods, followed by comprehensive literature review and analysis of chaos-based coherent techniques and their applications. In the second part of the survey, we offer a taxonomy of the current literature by focusing on non-coherent detection methods. For each modulation class, this paper categorizes different transmission techniques by elaborating on its modulation, receiver type, data rate, complexity, energy efficiency, multiple access scheme, and performance. In addition, this survey reports on the analysis of tradeoff between different chaos-based communication systems. Finally, several concluding remarks are discussed.

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Design and Performance Analysis of a Multiuser OFDM Based Differential Chaos Shift Keying Communication System

Cited by 123 publications

References 33 publications

Differential Chaos Shift Keying: A Robust Modulation Scheme for Power-Line Communications

Differential Chaos Shift Keying: A Robust Modulation Scheme for Power-Line Communications

Permutation Index DCSK Modulation Technique for Secure Multiuser High-Data-Rate Communication Systems

Wireless Chaos-Based Communication Systems: A Comprehensive Survey

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