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

Herceg, Marijan; Kaddoum, Georges; Vranješ, Denis; Soujeri, Ebrahim

doi:10.1109/tvt.2017.2774108

Cited by 129 publications

(57 citation statements)

References 27 publications

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“…Code-shift DCSK [28] Reference modulated DCSK [29] improved security Permutation index DCSK [30,31] Others Continuous mobility DCSK [32] DCSK-based automatic repeat request [33] Relay-based DCSK [34,35] using a hybrid chaotic system and impulse control [41,42]. Along this way, the intersymbol interference caused by multipath was decreased using a chaos property [43].…”

Section: Introductionmentioning

confidence: 99%

Experimental Wireless Communication Using Chaotic Baseband Waveform

Yao

Sun

Ren

et al. 2019

IEEE Trans. Veh. Technol.

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Some new properties of the chaotic signal have been implemented in communication system applications recently. They include: (i) chaos is proven to be the optimal communication waveform in the sense of very simple matched filter being used to achieve maximum signal to noise ratio; (ii) the amount of information contained in a chaotic signal is unaltered by a wireless multipath channel; and (iii) chaos property can be used to resist multipath effect. All these support the application of chaos in a practical communication system. However, due to the broadband property of the chaotic signal, it is very difficult for a practical transducer or antenna to convert such a broadband signal into a signal that would be suitable for practical band-limited wireless channel. Thus, the use of chaos property to improve the performance of conventional communication system without changing the system configuration becomes a critical issue in communication with chaos. In this paper, chaotic baseband waveform generated by a chaotic shaping filter is used to show that this difficulty can be overcome. The generated continuous-time chaotic waveform is proven to be topologically conjugate to a symbolic sequence, allowing the encoding of arbitrary information sequence into the chaotic waveform. A finite impulse response filter is used to replace the impulse control in order to encode information into the chaotic signal, simplifying the algorithm for high speed communication. A wireless communication system is being proposed using the chaotic signal as the baseband waveform, which is compatible with the general wireless communication platform. The matched filter and decoding method, using chaos properties, enhance the communication system performance. The Bit Error Rate (BER) and computational complexity performances of the proposed wireless communication system are analyzed and compared with the conventional wireless systems. The results show that the proposed chaotic baseband waveform of our wireless communication method has better BER performance in both the static and time-varying wireless channels. The experimental results, based on the commonly-used wireless open-access research platform, show that the BER of the proposed method is superior to the conventional method under a practical wireless multipath channel. * Corresponding author: renhaipeng@xaut.edu.cn information. To avoid the difficulty of the precise synchronization, the Differential CSK (DCSK)[10-12] was proposed. The DCSK system is robust under practical wireless channel and exhibits lower implementation complexity [13]. However, the weaknesses of DCSK are high energy consumption, low data rate, weakened information security and requirement of widewidth delay lines. Subsequently, several variants of DCSK were developed to improve the performance of DCSK in different ways, as shown in Table I. However, these variants of DCSK have low bandwidth efficiency as compared to conventional wireless communication.Another chaotic communication scheme is to encode the information bit...

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Section: Introductionmentioning

confidence: 99%

Experimental Wireless Communication Using Chaotic Baseband Waveform

Yao

Sun

Ren

et al. 2019

IEEE Trans. Veh. Technol.

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“…Due to the significant advantage of wideband characteristics provided by chaotic nonlinear signals, a large number of chaos-based communication systems have been proposed exploiting the properties of chaotic waveforms [14], especially in the areas of secure communications [15][16][17] and spreadspectrum modulation [18][19][20].…”

Section: Analog Chaotic Code In Wireless Communication Systemsmentioning

confidence: 99%

HARQ-Chaotic: Analog Chaotic Code Applied in HARQ Scheme of Wireless Communication System

Zhu

et al. 2019

Wireless Communications and Mobile Computing

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This paper proposes a novel symbol-level combining hybrid automatic repeat request (HARQ) scheme based on analog chaotic code and named HARQ-Chaotic. The transmitter of HARQ-Chaotic adopts analog chaotic code to encode Quadrature Amplitude Modulation (QAM) symbols of retransmission packets to combat fading and noise. As the analog chaotic code can only handle sources with amplitudes in the range of [-0.5, 0.5], QAM symbols must be scaled into this range. We derived the optimal scaling factor through theoretical analysis. A joint algorithm combining with novel soft chaotic decoder and novel soft QAM demapper is proposed for the receiver to enhance the performance of the whole communication system. We implemented HARQ-Chaotic with LDPC codes and 16-QAM/64-QAM to carry out simulations in both AWGN channels and multipath fading channels. Massive simulation results demonstrate that the proposed HARQ-Chaotic has 1dB-4dB gain over traditional HARQ-Chase combining (HARQ-CC) scheme in block error rate (BLER) performance.

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“…The eventual probability of correct detection in this case will be equal to 0.5, (i.e. the same as the priori probability of binary signalling) [18]. Due to the fact that P mod strongly depends on P id , the overall BER of the modulated bit may be expressed as…”

Section: Probability Of Error For the Modulated Bitmentioning

confidence: 99%

Commutation Code Index DCSK Modulation Technique for High-Data-Rate Communication Systems

Herceg¹,

Vranješ²,

Kaddoum

et al. 2018

IEEE Trans. Circuits Syst. II

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Abstract-In this work, a novel non-coherent modulation system named Commutation Code Index Differential Chaos Shift Keying (CCI-DCSK) is presented. In the proposed scheme, the benefits of index modulation (IM) are exploited so that the system energy and spectral efficiencies are improved. We are putting forward a CCI-DCSK scheme in which the reference sequence along with its corresponding data bearing orthogonal version are sent within the same time slot to enhance spectral efficiency. Specifically, at the transmitter p additional bits are mapped into the index of the repetition commutation which is performed on the reference signal for the sake of forming its orthogonal version. Furthermore, the modulated bit is spread by the corresponding commutated replica of the reference signal. The reference and orthogonal data bearing signals are then summed within the same time slot prior to transmission. At the receiver, the received signal is first correlated with all possible combinations of the commutated replicas in order to find the index of the correlator output with the maximum magnitude. Subsequently, the maximizing index is then used to estimate the mapped bits, while the output of the corresponding correlator is used to despread the modulated bit via a zero-threshold comparator. To complete the study, analytical expressions for the bit error rate (BER) are derived for both additive white Gaussian noise (AWGN) and multipath Rayleigh fading channels. Finally, performance results of the proposed CCI-DCSK scheme is compared with the state-of-the-art IM-based non-coherent chaotic modulations and is found to be superior and competitive.

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

Cited by 129 publications

References 27 publications

Experimental Wireless Communication Using Chaotic Baseband Waveform

Experimental Wireless Communication Using Chaotic Baseband Waveform

HARQ-Chaotic: Analog Chaotic Code Applied in HARQ Scheme of Wireless Communication System

Commutation Code Index DCSK Modulation Technique for High-Data-Rate Communication Systems

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