Article
Physics, Multidisciplinary
Tarek A. Elsayed
Summary: The protocol presents a new method for sending messages over a quantum channel with layers of security to prevent eavesdropping. It utilizes a one-way quantum channel and encoding technique to protect the message, using a quantum key to encrypt the data.
Article
Physics, Multidisciplinary
Yoann Pelet, Ittoop Vergheese Puthoor, Natarajan Venkatachalam, Soren Wengerowsky, Martin Loncaric, Sebastian Philipp Neumann, Bo Liu, Zeljko Samec, Mario Stipcevic, Rupert Ursin, Erika Andersson, John G. Rarity, Djeylan Aktas, Siddarth Koduru Joshi
Summary: This article presents an experimental demonstration of an unconditionally secure digital signature protocol implemented on a fully connected quantum network. The protocol ensures the authenticity and non-repudiation of signatures.
NEW JOURNAL OF PHYSICS
(2022)
Article
Engineering, Electrical & Electronic
Feng-Yu Lu, Ze-Hao Wang, Shuang Wang, Zhen-Qiang Yin, Jia-Lin Chen, Xiang Kang, De-Yong He, Wei Chen, Guan-Jie Fan-Yuan, Guang-Can Guo, Zheng-Fu Han
Summary: In this study, an intensity tomography method is proposed to address inaccuracies in practical decoy-state quantum key distribution systems. The method tightly bounds unknown density matrices and accurately calibrates fluctuations, leading to improved protocol performance and practical security.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Quantum Science & Technology
Felicien Appas, Florent Baboux, Maria I. Amanti, Aristide Lemaitre, Fabien Boitier, Eleni Diamanti, Sara Ducci
Summary: Quantum communication networks have applications in highly secure communication, clock synchronization, and distributed quantum computing, requiring miniaturized, flexible, and cost-efficient resources for scalability. This study combines on-chip photon sources and flexible-grid wavelength division multiplexing techniques to demonstrate reconfigurable entanglement distribution in a quantum network, showing low error and high key generation rates in quantum key distribution applications.
NPJ QUANTUM INFORMATION
(2021)
Article
Optics
Zhantong Qi, Yuanhua Li, Yiwen Huang, Juan Feng, Yuanlin Zheng, Xianfeng Chen
Summary: The study explores a QSDC network based on time-energy entanglement, with 15 users fully connected and sharing entangled states of high fidelity. Results show that QSDC can be maintained over 40 km of optical fiber with an information transmission rate above 1 Kbp/s.
LIGHT-SCIENCE & APPLICATIONS
(2021)
Article
Physics, Multidisciplinary
Min Wang, Wei Zhang, Jianxing Guo, Xiaotian Song, Guilu Long
Summary: Quantum secure direct communication (QSDC) provides a practical method for secure and reliable information transmission in quantum networks. However, the lack of quantum relays hampers the practicality of quantum networks. To overcome this limitation, this study proposes a solution to encrypt messages with classical cryptography between intermediate nodes and transmit encrypted quantum messages using QSDC. The experimental demonstration shows the feasibility of constructing a large-scale quantum network in the future, with the relay supporting a QSDC communication rate of 2.5 kb/s within a 4 ms time delay.
Article
Computer Science, Information Systems
Tapaswini Mohanty, Sumit Kumar Debnath
Summary: Private Set Intersection (PSI) is a prominent cryptographic building block in the current age of increasing data, enabling two organizations to determine the intersection of their input sets without leaking any other information. However, existing MPSI protocols are unable to withstand quantum attacks, necessitating the development of a secure and long-term MPSI scheme based on quantum cryptography.
JOURNAL OF INFORMATION SECURITY AND APPLICATIONS
(2023)
Article
Quantum Science & Technology
Jie Li, Yu-Guang Yang, Jian Li, Yue-Chao Wang, Yong-Li Yang, Yi-Hua Zhou, Wei-Min Shi
Summary: This study presents a deterministic secure quantum communication protocol based on spatial encoding, where qubit information is encoded in the spatial-mode degree of freedom of photons. The protocol ensures security through the use of decoy state technique and is shown to be secure against common attacks. It is suitable for long-distance quantum communication as it avoids degradation of photon states without relying on the polarization state of photons.
QUANTUM INFORMATION PROCESSING
(2022)
Article
Engineering, Electrical & Electronic
Zefan Tang, Yanyuan Qin, Zimin Jiang, Walter O. Krawec, Peng Zhang
Summary: This paper addresses the security challenges in microgrid communication by utilizing quantum key distribution (QKD). It introduces innovative QKD simulator, microgrid communication architecture, and testbed to enhance the network security of microgrids.
IEEE TRANSACTIONS ON POWER SYSTEMS
(2021)
Article
Engineering, Electrical & Electronic
Ze-Zhou Sun, Dong Pan, Dong Ruan, Gui-Lu Long
Summary: In this paper, we propose a one-sided measurement-device-independent quantum secure direct communication (1SMDI-QSDC) protocol that is independent of detection loopholes and weakens the requirement for state preparation. Realistic experimental settings are used to analyze the secrecy capacity of this protocol, and the results show that our protocols can achieve secure communication over a few hundred kilometers. Furthermore, we find that the coding technology of increasing capacity using masking (INCUM) can mitigate the degradation of the maximum distance of secure communication when the state preparation is highly untrustworthy.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Quantum Science & Technology
Zhenbang Rong, Daowen Qiu, Paulo Mateus, Xiangfu Zou
Summary: The paper introduces a mediated semi-quantum secure direct communication protocol, allowing two classical users to transmit secret messages with the help of a third party without the risk of eavesdropping, although efficiency may be compromised.
QUANTUM INFORMATION PROCESSING
(2021)
Article
Physics, Multidisciplinary
Jiandon Ouyang, Yuxun Wang, Qin Li
Summary: This paper proposes a quantum algorithm for solving Mahalanobis distance and combines it with quantum homomorphic encryption to achieve secure delegated computation. The feasibility of the proposed protocol is demonstrated through simulations on IBM's quantum cloud platform.
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
(2023)
Article
Physics, Multidisciplinary
Wen Yu Kon, Charles Ci Wen Lim
Summary: Private Information Retrieval (PIR) and Symmetric Private Information Retrieval (SPIR) are methods to protect user privacy through a database query protocol. By using Quantum Key Distribution (QKD), a secure SPIR solution can be achieved. Through key rate calculations, we demonstrate the feasibility of such an implementation at the metropolitan level.
Article
Physics, Multidisciplinary
Siddhartha Das, George Siopsis
Summary: The article discusses quantum position verification (QPV) protocols, pointing out the insecurity of QPV protocols using single-qubit states, introducing practically secure QPV protocols, and presenting a cheating strategy.
NEW JOURNAL OF PHYSICS
(2021)
Article
Physics, Multidisciplinary
Prateek Chawla, Adithi Ajith, C. M. Chandrashekar
Summary: This work presents a protocol that generates entanglement between directly connected nodes in a quantum network, enabling secure communication. Simulation results demonstrate the practical feasibility of this protocol for secure communication over any random network topology.
Article
Engineering, Electrical & Electronic
Xiongfei Zhai, Guojun Han, Yunlong Cai, Yuanwei Liu, Lajos Hanzo
Summary: The performance of over-the-air computation systems is affected by the harsh channel conditions of wireless devices, but this can be improved by using reconfigurable intelligent surfaces (RISs). Traditional RISs require that the wireless devices be located in a specific half-plane for reflection, which limits their benefits. To address this, a new family of simultaneously transmitting and reflecting RISs (STAR-RIS) is considered to improve computation accuracy across a wide coverage area. A joint beamforming design is proposed to minimize computation errors in STAR-RIS assisted AirComp systems. The proposed design outperforms benchmark schemes and achieves high computation accuracy. The performance is close to the best possible outcome based on the STAR-RIS design without phase-shift constraints.
IEEE TRANSACTIONS ON COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Kai Wu, J. Andrew Zhang, Xiaojing Huang, Y. Jay Guo, Lajos Hanzo
Summary: This paper proposes a low-complexity solution for the user and beam selection problem in beamspace millimeter-wave (mmWave) and terahertz (THz) massive MIMO. Unlike previous approaches, dirty paper coding (DPC) is introduced to address this problem. The properties of DPC sum rate in beamspace massive MIMO are revealed, showing its monotonic evolution with the number of users and beams selected. A set of algorithms with unique trade-offs is developed to simplify the joint user and beam selection problem, enabling simultaneous user and beam selection based on partial beamspace channels. The simulation results validate the effectiveness of the proposed design and analysis, demonstrating its superiority over prior solutions.
IEEE TRANSACTIONS ON COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Chao Zhang, Wenqiang Yi, Yuanwei Liu, Lajos Hanzo
Summary: The new concept of Semi-ISaC is proposed for next-generation cellular networks, which allows for more flexibility in bandwidth allocation compared to the state-of-the-art. By investigating the evolution from OMA to NOMA, the proposed framework enhances the bandwidth efficiency. Analytical and simulation results show that Semi-ISaC has better channel capacity than conventional ISaC, and NOMA-based Semi-ISaC outperforms OMA-based Semi-ISaC.
IEEE TRANSACTIONS ON COMMUNICATIONS
(2023)
Article
Computer Science, Information Systems
Kangda Zhi, Cunhua Pan, Hong Ren, Kezhi Wang, Maged Elkashlan, Marco Di Renzo, Robert Schober, H. Vincent Poor, Jiangzhou Wang, Lajos Hanzo
Summary: This paper investigates the two-timescale transmission scheme for reconfigurable intelligent surface (RIS)-aided massive MIMO systems. The power scaling laws and the impact of various system parameters are analyzed. The performance under different conditions, such as spatially independent or correlated fading channels, is evaluated. The results show the benefits of deploying RIS close to cell-edge users and the modest gains obtained for users distributed over a large area.
IEEE TRANSACTIONS ON INFORMATION THEORY
(2023)
Article
Engineering, Electrical & Electronic
Haiyan Guo, Zhen Yang, Yulong Zou, Bin Lyu, Yuhan Jiang, Lajos Hanzo
Summary: This paper investigates the physical layer security (PLS) for reconfigurable intelligent surface (RIS) assisted wireless networks in the presence of a malicious eavesdropper. A new joint RIS location and passive beamforming (J-LPB) optimization scheme is proposed to maximize the secrecy rate. The optimal location of the RIS is analyzed, and a two-tier optimization algorithm is proposed to solve the nonconvex problem. Numerical results show that the secrecy rate of the proposed J-LPB optimization scheme outperforms the benchmarks, and the benefits are further increased with the number of RIS units.
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Shihang Lu, Fan Liu, Lajos Hanzo
Summary: This paper analyzes the degrees of freedom (DoFs) obtained in monostatic integrated sensing and communications (ISAC). It explores the tradeoffs between Non-Line of Sight (NLoS) exploitation and reduction in the ISAC scenario. The optimization of transmit power for each signal path is discussed to maximize communication rate while maintaining sensing performance. The simulation results highlight the fundamental performance tradeoffs between sensing and communication in the ISAC channel.
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
(2023)
Article
Computer Science, Information Systems
Qingchao Li, Mohammed El-Hajjar, Ibrahim Hemadeh, Deepa Jagyasi, Arman Shojaeifard, Ertugrul Basar, Lajos Hanzo
Summary: This article proposes a low-complexity multiuser downlink communication system based on reconfigurable intelligent surfaces (RISs), where the phase shift and amplitude of each RIS element are appropriately configured to transmit multiuser information. The total power reflected from the RIS and the power allocation fraction assigned to each user are jointly optimized under practical constraints. The performance of the proposed RIS-aided single-RF downlink system is analyzed and compared to that of conventional multiple-input-multiple-output (MIMO) systems using multiple RF-chains.
IEEE INTERNET OF THINGS JOURNAL
(2023)
Article
Computer Science, Information Systems
Lyuxiao Yang, Nan Wu, Bin Li, Weijie Yuan, Lajos Hanzo
Summary: Indoor localization plays a crucial role in IoT services. A unified framework based on factor graphs is proposed for high-accuracy indoor localization. This framework integrates ranging and fingerprinting techniques efficiently to achieve a balance between accuracy and cost. Experimental results demonstrate that the proposed algorithm outperforms existing methods and achieves submeter localization accuracy.
IEEE INTERNET OF THINGS JOURNAL
(2023)
Article
Computer Science, Information Systems
Kunwar Pritiraj Rajput, Priyanka Maity, Suraj Srivastava, Vikas Sharma, Naveen K. D. Venkategowda, Aditya K. Jagannatham, Lajos Hanzo
Summary: This paper proposes the design of linear hybrid beamformers for decentralized estimation of a vector parameter in a millimeter-wave multiple-input-multiple-output Internet of Things Network. The designs incorporate both total IoT network and individual IoT node power constraints, while eliminating the need for a baseband receiver combiner at the fusion center.
IEEE INTERNET OF THINGS JOURNAL
(2023)
Article
Engineering, Electrical & Electronic
Chengwen Xing, Tao Yu, Jinpeng Song, Zhong Zheng, Lian Zhao, Lajos Hanzo
Summary: This paper investigates the fundamental functional modules of channel estimation and data transmission in multiple-input multiple-output (MIMO) communication systems. A unified optimization framework is proposed to jointly optimize the linear transmit precoder and the training sequence using various metrics. The optimal designs for both statistical channel state information (CSI) and estimated CSI scenarios are derived based on the proposed framework.
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
W. Zhu, H. D. Tuan, E. Dutkiewicz, Y. Fang, L. Hanzo
Summary: FD m-MIMO systems use 2D rectangular antenna arrays to control signal transmission in both azimuth and elevation angles. We propose a new class of FD beamforming that combines the outer products of azimuth and elevation beamforming vectors. It outperforms 2D beamforming and performs close to the massive FD counterpart in terms of users' rates. Additionally, our outer product-based Gaussian signaling solution can even outperform FD beamforming.
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Huasen He, Changkun Qin, Shuangwu Chen, Xiaofeng Jiang, Jian Yang, Lajos Hanzo
Summary: The Space-Ground Integrated Network (SGIN) concept is a promising solution for providing seamless global coverage. The challenge of managing the location of satellites and wireless terminals in SGIN is addressed by using a split identifier (ID) and Network Address (NA) based design. This design utilizes the storage capacity of Geostationary Earth Orbit Satellites (GEOSs) and Low Earth Orbiting Satellites (LEOSs) to create a spatially distributed binding resolution system and optimize caching rewards.
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
(2023)
Article
Computer Science, Information Systems
Daryus Chandra, Soon Xin Ng, Lajos Hanzo
Summary: This study proposes a novel quantum Turbo short-block code design that achieves multiple quantum coding rates. The design uses multiple-rate quantum short-block codes as the outer codes and a quantum unity-rate code as the inner code. Simulation results show that the proposed design performs close to the ultimate limit of the quantum hashing bound.
Article
Engineering, Electrical & Electronic
Zeynep B. Kaykac Egilmez, Robert G. Maunder, Mohammed El-Hajjar, Lajos Hanzo
Summary: A novel soft-input soft-output (SISO) polar decoding algorithm is proposed, which leverages a hybrid of Soft Cancellation (SCAN) and g-function aided-SCAN (G-SCAN) decoding. The algorithm is capable of iterating between an inner and outer decoder in a three-stage serial concatenated iterative receiver. Additionally, the paper presents the Three-Dimensional (3D) Extrinsic Information Transfer (EXIT) chart analysis of polar codes for the first time, characterizing the iterative exchange of extrinsic information between the three concatenated stages. The proposed SISO scheme offers a complexity reduction and SNR gain compared to benchmarkers.
IEEE OPEN JOURNAL OF VEHICULAR TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Shubham Saxena, Suraj Srivastava, Saurabh Sharma, Aditya K. Jagannatham, Lajos Hanzo
Summary: This study proposes a sparse multipath CIR estimation scheme for optical OFDM visible light communication systems. The proposed method has reduced pilot overhead compared to other CE techniques and outperforms them in various metrics.
IEEE OPEN JOURNAL OF THE COMMUNICATIONS SOCIETY
(2023)
