Article
Computer Science, Information Systems
Yunye Li, Lin Dai, Liang Lv
Summary: Differential chaos shift keying (DCSK) is a promising communication technique in the Internet of Things (IoT) scenario. Among various DCSK schemes, M-ary DCSK schemes suit LDPC code especially well dispense with the channel state information in demodulator. We propose an improved decoder design using a novel initial chaotic signal estimation (ICSE) algorithm to fully utilize the information of the repeated chaotic signals and improve the error performance. Additionally, a novel protograph code is proposed using protograph extrinsic information transfer (P-EXIT) algorithm to further boost the system performance.
Article
Engineering, Electrical & Electronic
Huan Ma, Yi Fang, Pingping Chen, Yonghui Li
Summary: In this paper, two reconfigurable intelligent surface-aided M-ary frequency-modulated differential chaos shift keying (RIS-M-FM-DCSK) schemes are proposed. The RIS is utilized either as a transmitter or a relay to incorporate M-ary phase-shift-keying (M-PSK) symbols into the FM chaotic signal for information transmission. The proposed system does not require channel state information, and theoretical expressions for bit error rates (BERs) are derived and verified through simulations. The RIS-M-FM-DCSK system is a promising alternative for wireless communication networks with its advantages of low cost, low power, and high reliability.
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
(2023)
Article
Telecommunications
Zhiping Xu, Lin Wang, Guanrong Chen
Summary: A novel collaborative design framework is proposed for the DC-BICM system, which reduces decoding complexity by introducing column-weight-based shuffled scheduling decoding. Furthermore, a low-storage P-LDPC code is designed using the CWB-EXIT algorithm, resulting in storage space savings and better system performance.
IEEE COMMUNICATIONS LETTERS
(2021)
Article
Engineering, Electrical & Electronic
Yi Fang, Junming Zhuo, Huan Ma, Shahid Mumtaz, Yonghui Li
Summary: We propose a new index-modulation-aided differential chaos shift keying (DCSK) system, the CTIM-DCSK system, that utilizes frequency and time resources for high-data-rate transmissions. The system uses orthogonal sinusoidal carriers to transmit reference-chaotic and information-bearing signals, while the frequency and time resources are used as indices for additional information bits. The proposed CTIM-DCSK system improves bit error rate (BER) performance and complexity reduction by using time slots to convey the same index bits. Noise reduction methods at the receiver further enhance BER performance. The theoretical BER expressions are derived and compared with existing counterparts, confirming the accuracy and advantage of the proposed CTIM-DCSK system. Therefore, it is a competitive candidate for low-complexity Internet-of-Things applications.
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
(2023)
Article
Computer Science, Information Systems
Zhuwen Yang, Guofa Cai
Summary: This paper proposes a new non-coherent cross-quadrature amplitude modulation (XQAM)-based M-ary differential chaos shift keying (XQAM-MDCSK) system, where an autocorrelator is used at the receiver to obtain the channel compensation value. Results show that the proposed system achieves better bit error rate (BER) performance and a lower peak-to-average power ratio (PAPR) compared to the star QAM-MDCSK system.
Article
Physics, Multidisciplinary
Weimin Kang
Summary: In this paper, a novel nonbinary LDPC-coded probabilistic shaping scheme is proposed for a Rayleigh fading channel. By optimizing the rotation angles of different constellation diagrams, this scheme achieves improved error performance.
Article
Engineering, Electrical & Electronic
Kengyuan Xie, Guofa Cai, Georges Kaddoum
Summary: This paper proposes an energy buffer and reconfigurable intelligent surface (RIS) aided differential chaos-shift-keying (DCSK) wireless-powered communication (WPC) system. The system includes an access point (AP), a RIS, and a source node equipped with an energy buffer. The proposed system achieves better bit-error-rate (BER) performance compared to conventional DCSK-WPC and RIS aided DCSK-WPC buffer-less systems, while maintaining the non-coherent feature of the DCSK system.
IEEE TRANSACTIONS ON COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Monirosharieh Vameghestahbanati, Ian D. Marsland, Ramy H. Gohary, Halim Yanikomeroglu
Summary: Designing multidimensional constellations is crucial for sparse code multiple access (SCMA), with the performance often improving with higher signal-to-noise ratios (SNR) and more iterations of the message passing algorithm (MPA). However, when limited MPA iterations are required for low-latency and low-complexity applications, the performance gap between the optimal maximum a posteriori (MAP) receiver and MPA becomes significant, especially at low-to-medium SNRs. Inspired by hypercubes, a new approach using unitary rotations has been proposed for constructing novel MdCs that achieve minimum frame-error-rates (FER) and provide substantial performance gains compared to existing SCMA MdCs, especially in low-to-medium SNR regions with limited MPA iterations and the use of 5G-compliant LDPC codes.
IEEE TRANSACTIONS ON COMMUNICATIONS
(2021)
Article
Engineering, Civil
Yi Fang, Yingcheng Bu, Pingping Chen, Francis C. M. Lau, Sattam Al Otaibi
Summary: This paper investigates the protograph-coded bit-interleaved coded modulation with iterative detection and decoding (BICM-ID) using irregular mapping (IM) in NAND flash-memory systems. The proposed schemes, including an enhanced protograph-based extrinsic information transfer (EPEXIT) algorithm and a novel read-voltage optimization scheme, significantly improve the decoding performance of flash-memory systems.
IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS
(2023)
Article
Computer Science, Information Systems
Jaewha Kim, Chanki Kim, Hosung Park, Jong-Seon No
Summary: This letter proposes new protograph low-density parity-check (LDPC) codes with high code rates for block fading (BF) channels using resolvable block designs (RBDs). To analyze the performance of the proposed LDPC codes, an upper bound on the bit error rate (BER) is derived using the novel method called gamma evolution. Finally, numerical results demonstrate that the frame error rate (FER) of the proposed LDPC codes has a slope approaching the channel outage probability.
IEEE WIRELESS COMMUNICATIONS LETTERS
(2022)
Article
Engineering, Electrical & Electronic
Huan Ma, Yi Fang, Pingping Chen, Shahid Mumtaz, Yonghui Li
Summary: A new MIM-DCSK scheme is proposed in this paper to enhance the data rate, energy efficiency, and spectral efficiency of traditional DCSK scheme. It considers time slot, carrier, and Walsh code as indices to convey additional information bits, achieving high data rate, spectral efficiency, and energy efficiency. The theoretical analysis and simulation results demonstrate the superiority of the proposed scheme, which is a promising solution for low-power and low-cost short-wireless communications.
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Guofa Cai, Yi Fang, Pingping Chen, Guojun Han, Guoen Cai, Yang Song
Summary: The paper proposes a new multiple-input-single-output simultaneous wireless information and power transfer scheme for CIM-MC-M-DCSK system, utilizing the orthogonal characteristic of chaotic signals to provide energy and transmit information simultaneously. The system features desirable anti-multipath-fading capability without the need for a channel estimator, and its superiority is demonstrated through analysis of spectral efficiency and energy efficiency. Simulation results validate the analytical expressions and confirm the advantages of the proposed system.
IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS
(2021)
Article
Engineering, Electrical & Electronic
Apurve K. Pandey, Kallapu Reeshitha, Soumya P. Dash
Summary: A non-multipath and receive diversity power line communication system subject to Rayleigh fading is analyzed in this paper. The optimal receiver structures for non-multipath and multipath PLC systems are proposed, and closed-form expressions for symbol error probability are derived. The optimal symbol correlation matrix for MFSK modulation is obtained using a search-based algorithm to achieve minimal SEP values.
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Ranjan K. Mallik, Ross Murch
Summary: This study examines the channel capacity of noncoherent reception of multi-level one-sided amplitude-shift keying in Rayleigh fading, considering asymmetries in constellation that affect capacity. The analysis derives optimal input probabilities and capacity approximations at high and low signal-to-noise ratios. Additionally, a logarithmic upper bound on mutual information is obtained.
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
(2021)
Article
Engineering, Electrical & Electronic
Yiwei Tao, Yi Fang, Huan Ma, Shahid Mumtaz, Mohsen Guizani
Summary: A multi-carrier differential chaos shift keying communication system with hybrid index modulation is proposed to boost the transmission efficiency in wireless communication systems. The system utilizes a pair of orthogonal signals to represent active and inactive subcarriers, allowing for the transmission of information bits using all subcarriers. The theoretical analysis and Monte-Carlo simulations verify the superiority of the proposed system.
IEEE TRANSACTIONS ON COMMUNICATIONS
(2022)
Article
Automation & Control Systems
Xiaoling Wang, Housheng Su, Fan Zhang, Guanrong Chen
Summary: This article investigates the state estimation problem of a continuous-time linear time-invariant system in the presence of unknown external disturbance and measurement noise. A robust distributed interval observer is designed, which consists of a group of sensors communicating through a directed graph. The communication, heterogeneity, and undetectability of the sensors impose stringent requirements on the observer construction. To address these restrictions, an internally positive representation from a single agent system is introduced. Numerical simulations are conducted to validate the theoretical results.
IEEE TRANSACTIONS ON AUTOMATIC CONTROL
(2023)
Article
Automation & Control Systems
Xu Zhang, Guanrong Chen
Summary: A new geometric criterion is developed to determine the existence of chaos in continuous-time autonomous systems in three-dimensional Euclidean spaces. This criterion differs from traditional methods as it does not rely on equilibrium points or the condition of transversal homoclinic or heteroclinic orbit of a Poincare map.
JOURNAL OF DYNAMICAL AND CONTROL SYSTEMS
(2023)
Article
Automation & Control Systems
Yuqing Hao, Qingyun Wang, Zhisheng Duan, Guanrong Chen
Summary: In this article, the discernibility of topological variations for networked linear time-invariant (LTI) systems is investigated. A necessary and sufficient condition is derived, revealing the impact of topological variations, node-system dynamics, and inner interactions on network discernibility. The condition presented is more general than existing conditions. Furthermore, the discernibility of topological variations for multiagent systems is revisited, and a new necessary and sufficient condition is established with broader applicability.
IEEE TRANSACTIONS ON AUTOMATIC CONTROL
(2023)
Article
Automation & Control Systems
Yang Lou, Lin Wang, Shengli Xie, Guanrong Chen
Summary: This paper proposes a hybrid approximation method to estimate the controllability robustness performance of large-scale directed random-graph networks under random edge-removal attacks. Two threshold values are set to classify general random-graph networks as 'dense', 'sparse', or 'median', according to the average degree. Simulation results verify that the proposed method can accurately approximate the controllability curves and is more time-efficient compared to conventional attack simulations.
INTERNATIONAL JOURNAL OF CONTROL AUTOMATION AND SYSTEMS
(2023)
Article
Computer Science, Artificial Intelligence
Yang Lou, Ruizi Wu, Junli Li, Lin Wang, Chang-Bing Tang, Guanrong Chen
Summary: This study proposes an efficient robustness predictor based on multiple convolutional neural networks (mCNN-RP) for predicting the network connectivity robustness. By classifying and estimating networks, it can accurately predict the connectivity robustness of different complex networks and outperforms existing prediction measures.
Article
Automation & Control Systems
Yong Wang, Zhuo Liu, Leo Yu Zhang, Fabio Pareschi, Gianluca Setti, Guanrong Chen
Summary: This article performs a theoretical study on pseudorandom number generation using the well-studied 2-D coupled map lattice (2D CML). It proposes a method to extract uniformly distributed independent bits from the system orbits and demonstrates its effectiveness through simulation experiments.
IEEE TRANSACTIONS ON CYBERNETICS
(2023)
Article
Physics, Multidisciplinary
Jiashuo Sun, Linying Xiang, Guanrong Chen
Summary: In this article, the dynamical robustness of a directed complex network with additive noise is studied. The failure of a node in the network is modeled by injecting noise into the node. A new robustness metric is formulated to characterize the synchronization of the network to the additive noise under the framework of mean-square stochastic stability. It is found that the node dynamics plays a crucial role in the dynamical robustness of the directed network. Numerical simulations are provided for illustration and verification.
FRONTIERS IN PHYSICS
(2023)
Article
Automation & Control Systems
Bing Mao, Xiaoqun Wu, Jinhu Lu, Guanrong Chen
Summary: This article investigates the uniformly predefined-time bounded consensus of leader-following multiagent systems with unknown system nonlinearity and external disturbance. Distributed adaptive fuzzy control is used to analyze and design the system, achieving global consensus within a predefined time.
IEEE TRANSACTIONS ON CYBERNETICS
(2023)
Article
Automation & Control Systems
Jie-Ning Wu, Xiang Li, Guanrong Chen
Summary: This article examines the controllability of multi-input/multi-output linear time-invariant systems in a snapback interlayer coupling framework. It establishes necessary and sufficient conditions for the controllability of three-layer snapback networks and obtains controllability conditions for the superposition of these networks. These conditions are related to smaller scale factor networks and illustrate the impact of interlayer coupling frameworks, intralayer network topologies, node dynamics, inner interactions, and external control inputs on the controllability of snapback networks. The controllability conditions of three-layer snapback networks are also extended to the M-layer setting. Several examples are provided to illustrate the effectiveness of these controllability conditions.
IEEE TRANSACTIONS ON CONTROL OF NETWORK SYSTEMS
(2023)
Article
Mathematics
Jiali Wang, Changbing Tang, Jianquan Lu, Guanrong Chen
Summary: In this paper, a decision optimization method based on zero-determinant (ZD) strategies is proposed to help workers in a crowdsourcing system make optimal decisions under incomplete information. The problem is formulated as an iterated game with incomplete information, and the optimal decision of workers in terms of ZD strategies is analyzed. Numerical simulations are conducted to demonstrate the performances of different strategies and the impact of parameters on the payoffs of workers.
Article
Automation & Control Systems
Wenbo Hu, Fei Chen, Linying Xiang, Guanrong Chen
Summary: This article studies coordinated tracking of underactuated and uncertain autonomous surface vehicles (ASVs) via model-reference reinforcement learning control. It is demonstrated that the proposed algorithm has a better performance over baseline control and effectively improves the training efficiency over reinforcement learning.
IEEE TRANSACTIONS ON CYBERNETICS
(2023)
Article
Automation & Control Systems
Zhen Liu, Liangguang Pan, Guanrong Chen
Summary: In this article, a computational model called link-information augmented twin autoencoders is proposed to remove noisy links from observed network and recover the real network. Extensive experiments show that the proposed model outperforms other methods in network denoising and provides interpretable evidence to support its superiority.
IEEE TRANSACTIONS ON CYBERNETICS
(2023)
Article
Mathematics, Interdisciplinary Applications
Yuqian Zhou, Guanrong Chen, Jibin Li
Summary: By applying the techniques from dynamical systems and singular traveling wave theory developed by Li and Chen [2007] to analyze the traveling wave system of the cubic Camassa-Holm type equation, it has been discovered that the bifurcation portraits of this equation exhibit all possible exact explicit bounded solutions (solitary wave solutions, periodic wave solutions, peakon as well as periodic peakons) under different parameter conditions. A total of 19 explicit exact parametric representations of the traveling wave system of the Camassa-Holm type equation are provided.
INTERNATIONAL JOURNAL OF BIFURCATION AND CHAOS
(2023)
Article
Computer Science, Artificial Intelligence
Jiajun Zhou, Zhi Chen, Min Du, Lihong Chen, Shanqing Yu, Guanrong Chen, Qi Xuan
Summary: In this paper, robust community detection methods are proposed to improve the performance and robustness of community detection for real-world networks. By enhancing network structure through two generic algorithms, significant performance improvement is achieved for representative community detection algorithms. Additionally, the new methods also optimize the network structure and enhance robustness against adversarial attack.
IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING
(2023)
Article
Mathematics, Applied
Zhensu Wen, Guanrong Chen
Summary: This paper uses the methodology of dynamical systems and singular traveling wave theory to prove the existence of all possible bounded solutions of the traveling wave system in the Hertz chain model under different parameter conditions. Furthermore, it obtains 23 exact explicit parametric representations for various types of traveling wave systems.
DISCRETE AND CONTINUOUS DYNAMICAL SYSTEMS-SERIES S
(2023)