Article
Engineering, Electrical & Electronic
Yuncong Xie, Pinyi Ren
Summary: This article focuses on the pilot-assisted transmission design for secure ultra-reliable and low-latency communication (URLLC) systems. It introduces the concept of achievable effective secrecy rate (AESR) to measure the secrecy performance of the URLLC system and proposes an efficient search algorithm to determine the optimal transmission parameters. Numerical results validate the accuracy of theoretical approximations and demonstrate the impact of system parameters on AESR.
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Tong-Xing Zheng, Yating Wen, Hao-Wen Liu, Ying Ju, Hui-Ming Wang, Kai-Kit Wong, Jinhong Yuan
Summary: This paper investigates the physical-layer security of uplink millimeter wave communications in a C-V2X network, proposing two uplink association schemes and establishing an analytical framework to evaluate security performance. Numerical results validate theoretical analysis and show that the LPA scheme outperforms the SDA scheme in terms of secrecy throughput.
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
(2022)
Article
Engineering, Electrical & Electronic
Nor Aishah Muhammad, Norhudah Seman, Nur Ilyana Anwar Apandi, Yonghui Li
Summary: This paper investigates the hybrid deployment of sub-6 GHz and MMW networks, analyzing the simultaneous reception of information and energy by user equipment from different base stations, and calculating the energy coverage probability and signal-to-interference-plus-noise coverage probability using a stochastic geometry framework. Results show that the ECP varies depending on the UE model, with energy coverage probabilities for both PPP and PCP users converging to different results as the cluster size changes.
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Liang Sun, Xinyu Tian
Summary: This paper comprehensively studies the physical layer security in frequency division duplex multi-antenna cellular systems. The main findings include an analytical expression for the lower bound on the ergodic secrecy rate (ESR), a closed-form approximation for the optimal number of feedback bits, and insights into the power allocation coefficient. Numerical results are also presented to verify the obtained results.
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
(2022)
Article
Computer Science, Information Systems
Christodoulos Skouroumounis, Constantinos Psomas, Ioannis Krikidis
Summary: This paper studies the co-design of full-duplex (FD) radio with joint communication and radar sensing techniques in millimeter-wave (mmWave) heterogeneous networks. By proposing a cooperative detection technique, exploiting sensing information from multiple base stations and considering spatial correlation among base station locations, the detection performance can be significantly improved.
IEEE TRANSACTIONS ON MOBILE COMPUTING
(2022)
Article
Engineering, Electrical & Electronic
Jeya Pradha Jeyaraj, Martin Haenggi
Summary: The paper introduces a general framework for modeling and analyzing vehicular networks, focusing on various street systems and communication reliability, as well as introducing the concept of equivalence between vehicular models.
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
(2021)
Article
Engineering, Electrical & Electronic
Xiaopei Guo, Chao Zhang, Fangzhou Yu, Hao Chen
Summary: This article investigates the method of using drones as aerial base stations to reduce interference and balance the quality of service in mmWave cellular networks. By modeling the distribution of ground base stations and drone locations, the authors derive key performance indicators such as coverage probability and user association probability. The effectiveness of the proposed design method is validated through simulations.
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
(2022)
Article
Telecommunications
G. Ananthi, S. J. Thiruvengadam
Summary: This paper discusses the coverage probability analysis of mmWave SWIPT systems using stochastic geometry, introducing a new model considering interfering base stations and validating theoretical results through simulation.
WIRELESS PERSONAL COMMUNICATIONS
(2021)
Article
Computer Science, Information Systems
Haoyu Wang, Ying Ju, Ning Zhang, Qingqi Pei, Lei Liu, Mianxiong Dong, Victor C. M. Leung
Summary: This article explores the potential of physical layer security in mmWave MIMO systems and proposes an artificial noise-aided secure transmission scheme to resist eavesdropping threats. Theoretical analysis and simulation results both demonstrate the effectiveness of the proposed scheme in reducing the security risks of mmWave MIMO systems.
IEEE INTERNET OF THINGS JOURNAL
(2022)
Article
Engineering, Electrical & Electronic
Sisai Fang, Gaojie Chen, Xiaodong Xu, Shujun Han, Jie Tang
Summary: This paper analyzes the performance of 5G communication networks with coordinated beamforming SBSs operating at mmWave frequency band and MBSs operating at sub-6 GHz, proposing a clustering method and average distance calculation to reduce interference and improve energy efficiency.
IEEE TRANSACTIONS ON COMMUNICATIONS
(2021)
Article
Engineering, Electrical & Electronic
Minwei Shi, Xiaozheng Gao, Kai Yang, Dusit Niyato, Zhu Han
Summary: This paper provides a fine-grained performance analysis of mmWave networks with hotspots by establishing a general and tractable framework integrated with the Poisson cluster process and features of the mmWave band. The study covers aspects such as network performance, association strategies, reliability, and blockage effects. Simulation results show that optimizing scattering variance and increasing antenna directivity are crucial for enhancing the performance of mmWave networks.
IEEE TRANSACTIONS ON COMMUNICATIONS
(2021)
Article
Engineering, Electrical & Electronic
Le Yang, Xiao Li, Shi Jin, Michail Matthaiou, Fu-Chun Zheng
Summary: This paper utilizes stochastic geometry to study the performance of RIS in mmWave cellular networks. By modeling the locations of base stations and blockages, incorporating directional beamforming and different path loss laws, the success probability and area spectral efficiency are derived. The tradeoff between base station and RIS densities is investigated, showing that RIS can improve success probability with limited power consumption.
IEEE TRANSACTIONS ON COMMUNICATIONS
(2022)
Article
Engineering, Electrical & Electronic
Yaqian Zhang, Junyu Liu, Min Sheng, Yan Shi, Jiandong Li
Summary: In this study, the performance of small cell networks with wireless backhaul in terms of network spatial throughput is comprehensively investigated. It is found that over-provision of backhaul can lead to degradation of network performance, and a joint optimization of base station and gateway densities is proposed to improve network spatial throughput.
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
(2021)
Article
Energy & Fuels
Hao Chen, Zhan Chen
Summary: This paper focuses on the energy-efficient coverage of wireless sensor networks (WSN). The communication path lengths between randomly distributed base stations (BSs) and sensor nodes are characterized by distance distributions. A power allocation scheme based on the theory of Poisson point process (PPP) and Boolean Model (BM) is proposed to achieve green communication of sensor nodes. It is proven that the scheduling and allocation scheme can achieve energy savings and prolong the life cycle of the whole wireless sensor networks.
Article
Engineering, Electrical & Electronic
Yujie Qin, Mustafa A. A. Kishk, Mohamed-Slim Alouini
Summary: This paper analyzes the energy efficiency of a novel system model where unmanned aerial vehicles (UAVs) are used to provide coverage for user hotspots and are deployed on charging pads to enhance flight time. The authors introduce the concept of cluster pairs to capture the dynamic nature of user spatial distribution and investigate different deployment strategies for UAVs. By considering the relationship between user cluster pair density and charging pad density, the authors identify an optimal density that maximizes energy efficiency.
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Limeng Dong, Hui-Ming Wang, Jiale Bat
Summary: This study proposes a novel active RIS design to enhance secure wireless transmission. By adjusting the phase shift and amplifying the amplitude of signals, the impact of double fading effect can be effectively relieved, resulting in a significantly higher secrecy performance gain.
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Jia-Cheng Jiang, Hui-Ming Wang
Summary: This paper investigates an uplink massive machine-type communication scenario with a massive number of antennas. It proposes a novel hybrid message passing algorithm for joint active detection and channel estimation. Simultaneous user grouping and JADCE significantly reduce the computational overhead for downlink training and feedback of channel state information. The effectiveness of the proposed method is validated through thorough analysis of the detection error probabilities and channel estimation error.
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
(2022)
Article
Engineering, Electrical & Electronic
Chen Feng, Hui-Ming Wang, H. Vincent Poor
Summary: In this paper, we investigate the reliability and security guarantees in short-packet communications. We define the outage probability and effective throughput as performance metrics and propose a general analytical framework for approximation. Closed-form expressions for these quantities are derived in the high-SNR regime. Numerical results validate the accuracy and feasibility of the proposed framework and illustrate the impact of system parameters on performance under the outage-probability constraint.
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
(2022)
Article
Computer Science, Information Systems
Hui-Ming Wang, Qing-Yi Fu
Summary: Physical layer authentication is a promising complement to cryptographic-based authentication schemes, particularly in IoT scenarios. We propose a PLA scheme based on Gaussian process channel prediction to track and predict channel characteristics. We also introduce a one-class authentication scheme that does not require attacker's channel information and verify the performance through simulation tests.
IEEE INTERNET OF THINGS JOURNAL
(2022)
Article
Engineering, Electrical & Electronic
Shao-Di Wang, Hui-Ming Wang, Zhetao Li, Victor C. M. Leung
Summary: For mission-critical massive machine-type communications, a novel UAJ detection method based on JSTS is proposed to address the serious threat of active jamming attack in uplink access. The proposed method detects UAJ in a sequential manner by processing received signals one by one, and does not rely on prior knowledge of the attackers. Numerical results validate the effectiveness of the method.
IEEE TRANSACTIONS ON COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Shao-Di Wang, Hui-Ming Wang, Chen Feng, Victor C. M. Leung
Summary: In this paper, we propose to detect DMRS spoofing in 5G NR by exploiting the spatial sparsity structure of the channel. We first extract the spatial sparsity structure of the channel using a sparse feature retrieval method, and then propose a sequential sparsity structure anomaly detection method to detect DMRS spoofing. Simulation results show that our method outperforms other existing methods.
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
(2023)
Article
Computer Science, Information Systems
Bing-Qing Zhao, Hui-Ming Wang, Hao Deng
Summary: Device-to-device (D2D) communication can improve spectrum efficiency and coverage of wireless networks, but its transmission secrecy is vulnerable due to resource and power constraints. This article challenges the assumption that D2D transmissions always improve secrecy performance and investigates the performance of a cellular transmission mode assisted by the base station. The results show that neither the D2D mode nor the cellular mode is always superior, and the choice depends on system parameters. An adaptive switching transmission mode is suggested to achieve enhanced secrecy performance.
IEEE INTERNET OF THINGS JOURNAL
(2023)
Article
Telecommunications
Qingli Yan, Zhe Luo, Hui-Ming Wang
Summary: This article addresses the problem of signal strength localization under the assumption of unavailable noise model and transmit power. A universal mixture of Gaussian distribution is proposed to model the unknown noise, and a novel variational inference framework is proposed for joint automatic noise model learning and target localization. Numerical experiments demonstrate the robustness and effectiveness of the proposed algorithm.
IEEE COMMUNICATIONS LETTERS
(2023)
Article
Engineering, Electrical & Electronic
Shao-Di Wang, Hui-Ming Wang, Peng Liu
Summary: In this paper, a burst jamming detection method for delay-sensitive Internet-of-Things (IoT) applications is investigated. An online principal direction anomaly detection (OPDAD) method is proposed to obtain a timely detection. The OPDAD method adopts an online iterative processing mode, which can quickly detect the exact attack time block instance.
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Chao Wang, Zan Li, Tong-Xing Zheng, Derrick Wing Kwan Ng, Naofal Al-Dhahir
Summary: This work investigates covert information freshness in IRS-aided communications, where a public user and a private user exchange information under the watchful eye of a warden. By exploiting the channel statistics, the joint design of active and passive beamforming and packet length minimizes the age of information at one user while ensuring covert communication and quality of service at the other user. Alternating optimization algorithms are proposed to overcome the non-convexity of the design problem.
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
(2023)
Article
Computer Science, Information Systems
Haolin Liu, Xiaoling Long, Zhetao Li, Saiqin Long, Rong Ran, Hui-Ming Wang
Summary: With the development of multi-access edge computing (MEC), the cloudlet at the edge of the network can reduce the computational consumption of user equipments (UEs) by providing nearby high-performance computing services. This paper studies the problem of minimizing the total latency in the MEC network by optimizing request assignment and computing resource allocation. To solve the problem, the paper decomposes it into two subproblems and proposes a Lagrangian multiplier method and a primal-dual based approximation algorithm. Experimental results show that the proposed algorithm outperforms baseline algorithms in terms of total latency, loading balancing, and computational speed.
IEEE TRANSACTIONS ON SERVICES COMPUTING
(2023)
Article
Computer Science, Information Systems
Weigang Lv, Jiale Bai, Qingli Yan, Hui Ming Wang
Summary: This study proposes an active RIS-aided multi-antenna physical layer secrecy transmission scheme, which can effectively resist the double fading effect and is more energy efficient than passive RIS.
IEEE WIRELESS COMMUNICATIONS LETTERS
(2023)
Article
Engineering, Electrical & Electronic
Jia-Cheng Jiang, Hui-Ming Wang
Summary: In this paper, a novel fully Bayesian approach for massive multiple-input multiple-output (MIMO) massive unsourced random access (URA) is proposed. The proposed method uses sparse regression codes (SPARCs) to code the payload of each user device without redundant parity bits. A Bayesian model is established to capture the probabilistic characteristics of the system. A three-layer message passing (TLMP) algorithm is proposed to jointly decode all the information blocks and acquire the massive MIMO channel, which significantly enhances the spectral efficiency compared with state-of-the-art baselines and is more robust to codeword collisions.
IEEE TRANSACTIONS ON COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Jiangbo Si, Zizhen Liu, Zan Li, Hang Hu, Lei Guan, Chao Wang, Naofal Al-Dhahir
Summary: This study investigates covert transmission in a cooperative deception strategy, aiming to degrade the reception ability of a multi-antenna adversary by attracting and jamming them. An optimization problem is formulated to maximize the covert rate, considering three types of channel state information (CSI). The power allocation between the transmitter and the jammer is optimized subject to the Kullback-Leibler (KL) divergence constraint, which serves as a measure of covertness. Unlike existing literature, the optimal transmission power of the jammer when the transmitter is silent is also determined. Simulation results demonstrate that the proposed strategy achieves an increased covert rate with more antennas at the adversary and exhibits better robustness against imperfect CSI compared to the benchmark method.
IEEE TRANSACTIONS ON COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Jia-Cheng Jiang, Hui-Ming Wang, H. Vincent Poor
Summary: This paper proposes a new theoretical framework for analyzing the performance of joint active user detection and channel estimation. By adopting the replica method under the Bayes-optimal condition, the optimality and phase transition of the joint AUD and CE based on approximate message passing can be measured, and the corresponding performance metrics can be predicted. By analyzing two typical scenarios, the performance analysis in this paper provides novel results for various channel cases.
IEEE TRANSACTIONS ON SIGNAL PROCESSING
(2022)
