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54 papers · 1 filter
Enhanced Channel Estimation for Flexible Intelligent Metasurface-Aided Communication Systems
Jinyue Jiang, Jiancheng An, Lu Gan +3
Flexible intelligent metasurface (FIM) has recently received considerable interest due to its advantage in realizing a better channel condition by dynamically morphing its surface…
Differentially Private Community Detection in -uniform Hypergraphs
Javad Zahedi Moghaddam, Aria Nosratinia
This paper studies the exact recovery threshold subject to preserving the privacy of connections in -uniform hypergraphs. Privacy is characterized by the -hyperedge diff…
Simultaneously Transmitting and Reflecting Surfaces for Ubiquitous Next Generation Multiple Access in 6G and Beyond
Xidong Mu, Jiaqi Xu, Zhaolin Wang +1
The ultimate goal of next generation multiple access (NGMA) is to support massive terminals and facilitate multiple functionalities over the limited radio resources of wireless net…
Robust Power Allocation for Integrated Visible Light Positioning and Communication Networks
Shuai Ma, Ruixin Yang, Chun Du +4
Integrated visible light positioning and communication (VLPC), capable of combining advantages of visible light communications (VLC) and visible light positioning (VLP), is a promi…
Exploiting Intelligent Reflecting Surfaces for Interference Channels with SWIPT
Ying Gao, Qingqing Wu, Wen Chen +3
This paper considers intelligent reflecting surface (IRS)-aided simultaneous wireless information and power transfer (SWIPT) in a multi-user multiple-input single-output (MISO) int…
Optimal Power Allocation for Integrated Visible Light Positioning and Communication System with a Single LED-Lamp
Shuai Ma, Ruixin Yang, Bing Li +6
In this paper, we investigate an integrated visible light positioning and communication (VLPC) system with a single LED-lamp. First, by leveraging the fact that the VLC channel mod…
Heterogeneous Semantic and Bit Communications: A Semi-NOMA Scheme
Xidong Mu, Yuanwei Liu, Li Guo +1
Multiple access (MA) design is investigated for facilitating the coexistence of the emerging semantic transmission and the conventional bit-based transmission in future networks. T…
Evolution of NOMA Toward Next Generation Multiple Access (NGMA) for 6G
Yuanwei Liu, Shuowen Zhang, Xidong Mu +5
Due to the explosive growth in the number of wireless devices and diverse wireless services, such as virtual/augmented reality and Internet-of-Everything, next generation wireless…
Machine Learning for User Partitioning and Phase Shifters Design in RIS-Aided NOMA Networks
Zhong Yang, Yuanwei Liu, Yue Chen +1
A novel reconfigurable intelligent surface (RIS) aided non-orthogonal multiple access (NOMA) downlink transmission framework is proposed. We formulate a long-term stochastic optimi…
Covert Communication in Intelligent Reflecting Surface-Assisted NOMA Systems: Design, Analysis, and Optimization
Lu Lv, Qingqing Wu, Zan Li +3
In this paper, we investigate covert communication in an intelligent reflecting surface (IRS)-assisted non-orthogonal multiple access (NOMA) system, where a legitimate transmitter…
Covert Transmission Assisted by Intelligent Reflecting Surface
Jiangbo Si, Zan Li, Yan Zhao +4
Covert transmission is studied for an intelligent reflecting surface (IRS) aided communication system, where Alice aims to transmit messages to Bob without being detected by the wa…
Outage Analysis of Cognitive Electric Vehicular Networks over Mixed RF/VLC Channels
Galymzhan Nauryzbayev, Mohamed Abdallah, Naofal Al-Dhahir
Modern transportation infrastructures are considered as one of the main sources of the greenhouse gases emitted into the atmosphere. This situation requires the decision-making pla…
Secure Non-Orthogonal Multiple Access: An Interference Engineering Perspective
Lu Lv, Hai Jiang, Zhiguo Ding +3
Non-orthogonal multiple access (NOMA) is an efficient approach that can improve spectrum utilization and support massive connectivity for next-generation wireless networks. However…
Resource Allocation in Intelligent Reflecting Surface Assisted NOMA Systems
Jiakuo Zuo, Yuanwei Liu, Zhijin Qin +1
This paper investigates the downlink communications of intelligent reflecting surface (IRS) assisted non-orthogonal multiple access (NOMA) systems. To maximize the system throughpu…
Massive Access for 5G and Beyond
Xiaoming Chen, Derrick Wing Kwan Ng, Wei Yu +3
Massive access, also known as massive connectivity or massive machine-type communication (mMTC), is one of the main use cases of the fifth-generation (5G) and beyond 5G (B5G) wirel…
Capacity and Optimal Resource Allocation for IRS-assisted Multi-user Communication Systems
Xidong Mu, Yuanwei Liu, Li Guo +2
The fundamental capacity limits of intelligent reflecting surface (IRS)-assisted multi-user wireless communication systems are investigated in this paper. Specifically, the capacit…
Coverage Probability Analysis Under Clustered Ambient Backscatter Nodes
Dong Han, Hlaing Minn
In this paper, we consider a new large-scale communication scheme where randomly distributed AmBC nodes are involved as secondary users to primary transmitter (PT) and primary rece…
One-Dimensional Phase Retrieval: Regularization, Box Relaxation and Uniqueness
Wing Hong Wong, Yifei Lou, Stefano Marchesini +1
Recovering a signal from its Fourier magnitude is referred to as phase retrieval, which occurs in different fields of engineering and applied physics. This paper gives a new charac…
Sensing-Throughput Tradeoff for Superior Selective Reporting-based Spectrum Sensing in Energy Harvesting HCRNs
Rajalekshmi Kishore, Sanjeev Gurugopinath, Sami Muhaidat +3
In this paper, we investigate the performance of conventional cooperative sensing (CCS) and superior selective reporting (SSR)-based cooperative sensing in an energy harvesting-ena…
On the Separability of Ergodic Fading MIMO Channels: A Lattice Coding Approach
Ahmed Hindy, Aria Nosratinia
This paper addresses point-to-point communication over block-fading channels with independent fading blocks. When both channel state information at the transmitter (CSIT) and recei…
Enhancing PHY Security of MISO NOMA SWIPT Systems With a Practical Non-Linear EH Model
Fuhui Zhou, Zheng Chu, Yongpeng Wu +2
Non-orthogonal multiple-access (NOMA) and simultaneous wireless information and power transfer (SWIPT) are promising techniques to improve spectral efficiency and energy efficiency…
Community Detection with Side Information: Exact Recovery under the Stochastic Block Model
Hussein Saad, Aria Nosratinia
The community detection problem involves making inferences about node labels in a graph, based on observing the graph edges. This paper studies the effect of additional, non-graphi…
Securing Untrusted Full-Duplex Relay Channels in the Presence of Multiple External Cluster-Based Eavesdroppers
Ahmed El Shafie, Asma Mabrouk, Kamel Tourki +2
This letter investigates the physical layer security in a wireless cooperative network where communication is assisted by a full-duplex (FD) untrusted relay in the presence of mult…
Secrecy Rate of Cooperative MIMO in Presence of a Location Constrained Eavesdropper
Zhong Zheng, Zygmunt Haas, Mario Kieburg
We propose and study the cooperative MIMO architecture to enable and to improve the secrecy transmissions between clusters of mobile devices in the presence of an eavesdropper with…