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

A new multi-carrier M -ary differential chaos shift keying system with code index modulation, referred to as CIM-MC-M -DCSK, is proposed in this paper. In the proposed CIM-MC-M -DCSK system, the reference and information-bearing signals for each subcarrier can be transmitted simultaneously by using the orthogonal sinusoidal carriers, where the informationbearing signal adopts the M -DCSK modulation to further increase the data rate. With an aim to making full use of the system energy resources, the reference signals in all subcarriers are coded by a Walsh code to carry additional information bits. The analytical bit-error-rate (BER) expressions of the proposed CIM-MC-M -DCSK system are derived over additive white Gaussian noise (AWGN) as well as multipath Rayleigh fading channels. Furthermore, a noise-reduction scheme and a hierarchicalmodulation scheme are designed for the proposed system. In particular, the former scheme can significantly improve the BER performance while the latter scheme can provide different quality of service (QoS) for the transmitted bits according to their different levels of importance. Simulation results verify the accuracy of the analytical expressions and the superiority of the proposed systems.

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“…Figs. [5][6][7][8] show that the simulated results are in good agreement with the theoretical results. Furthermore, Fig.…”

Section: A Theoretical and Simulated Ber Performance Of The Proposed Systemssupporting

confidence: 73%

Multi-Carrier $M$-ary DCSK System With Code Index Modulation: An Efficient Solution for Chaotic Communications

Cai

Fang

Wen

et al. 2019

IEEE J. Sel. Top. Signal Process.

182

135

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“…The authors in [216] and [217] investigated for the first time the application of non-coherent chaos based modulation techniques for power line communications (PLC). In [216], the authors proposed a differential chaos shift keying (DCSK) modulation scheme as a potential candidate for smart grid communication networks since this class of non-coherent modulation is very robust against linear and non-linear channel distortions.…”

Section: ) Power Line Communicationsmentioning

confidence: 99%

“…In [216], the authors proposed a differential chaos shift keying (DCSK) modulation scheme as a potential candidate for smart grid communication networks since this class of non-coherent modulation is very robust against linear and non-linear channel distortions. In their work, 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).…”

Section: ) Power Line Communicationsmentioning

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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“…Due to numerous superior inherent characteristics of chaotic signals such as noise-like wavelet, sensitive dependence on initial conditions, low probability of intercept, and δ-like self-correlation functions, the chaosbased communication technology has been widely applied in many communication scenarios, for instance, multi-user spread-spectrum communications, ultra-wideband systems (UWB), power-line communications, cognitive radio systems and secure communication systems [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

A Time-Delay Overlapping Modulation-Based High Spectral Efficiency and Secure DCSK System

et al. 2021

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In this paper, a new high spectral efficiency differential-chaos-shift-keying system based on the time-delay overlapping modulation technology (TDOP-DCSK) is proposed. In this system, the binary bits are conveyed by multiple chaotic carriers which are delayed in turn and overlapped directly in time domain, and demodulated via solving the equation system. Benefiting from the time-delay overlapping modulation, TDOP-DCSK can offer higher spectral efficiency, data transmission rate and energy efficiency. Meanwhile, as multiple information-bearing chaotic signals are delayed and overlapped, the correlation between the reference and information-bearing signal is weakened, which brings a higher security level. The spectral efficiency, energy efficiency and security are analyzed, and the analytical BER expressions are derived over both additive white Gaussian noise (AWGN) and multipath Rayleigh fading channels. In addition, effects of various system parameters on the system performance are discussed, and the BER comparison between TDOP-DCSK and the traditional DCSK system is implemented to discover the means of TDOP-DCSK symbol constitution. The simulation results verify superiorities and show broad prospects of TDOP-DCSK.

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

Cited by 55 publications

References 16 publications

Multi-Carrier $M$-ary DCSK System With Code Index Modulation: An Efficient Solution for Chaotic Communications

Multi-Carrier $M$-ary DCSK System With Code Index Modulation: An Efficient Solution for Chaotic Communications

Wireless Chaos-Based Communication Systems: A Comprehensive Survey

A Time-Delay Overlapping Modulation-Based High Spectral Efficiency and Secure DCSK System

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