2.2k citations · 6.7k across the 213 of their papers we have counts for
34 papers · 1 filter
Ordinary Differential Equation-based CNN for Channel Extrapolation over RIS-assisted Communication
Meng Xu, Shun Zhang, Caijun Zhong +2
The reconfigurable intelligent surface (RIS) is considered as a promising new technology for reconfiguring wireless communication environments. To acquire the channel information a…
Energy Efficiency Maximization in RIS-Aided Cell-Free Network with Limited Backhaul
Quang Nhat Le, Van-Dinh Nguyen, Octavia A. Dobre +1
Integrating the reconfigurable intelligent surface in a cell-free (RIS-CF) network is an effective solution to improve the capacity and coverage of future wireless systems with low…
Robotic Communications for 5G and Beyond: Challenges and Research Opportunities
Yuanwei Liu, Xiao Liu, Xinyu Gao +4
The ongoing surge in applications of robotics brings both opportunities and challenges for the fifth-generation (5G) and beyond (B5G) of communication networks. This article focuse…
Full-Duplex Non-Orthogonal Multiple Access Cooperative Overlay Spectrum-Sharing Networks with SWIPT
Quang Nhat Le, Animesh Yadav, Nam-Phong Nguyen +2
This paper proposes a novel non-orthogonal multiple access (NOMA) assisted cooperative spectrum sharing network, in which one of the full-duplex (FD) secondary transmitters (STs) i…
Reconfigurable Intelligent Surface-Assisted Uplink Sparse Code Multiple Access
Ibrahim Al-Nahhal, Octavia A. Dobre, Ertugrul Basar
Reconfigurable intelligent surface-empowered communication (RIS) and sparse code multiple access (SCMA) are promising candidates for future generations of wireless networks. The fo…
Learning-Assisted User Clustering in Cell-Free Massive MIMO-NOMA Networks
Quang Nhat Le, Van-Dinh Nguyen, Nam-Phong Nguyen +3
The superior spectral efficiency (SE) and user fairness feature of non-orthogonal multiple access (NOMA) systems are achieved by exploiting user clustering (UC) more efficiently. H…
Massive Uncoordinated Multiple Access for Beyond 5G
Mostafa Mohammadkarimi, Octavia A. Dobre, Moe Z. Win
Existing wireless communication systems have been mainly designed to provide substantial gain in terms of data rates. However, 5G and Beyond will depart from this scheme, with the…
Low Complexity Neural Network Structures for Self-Interference Cancellation in Full-Duplex Radio
Mohamed Elsayed, Ahmad A. Aziz El-Banna, Octavia A. Dobre +2
Self-interference (SI) is considered as a main challenge in full-duplex (FD) systems. Therefore, efficient SI cancelers are required for the influential deployment of FD systems in…
Towards the Use of Re-configurable Intelligent Surfaces in VLC Systems: Beam Steering
Alain R. Ndjiongue, Telex M. N. Ngatched, Octavia A. Dobre +1
The emergence of visible light communication (VLC) technology as a solution to solve radio frequency impediments, such as spectrum shortage, is continuously appealing. In addition…
Robust Design for Intelligent Reflecting Surface Assisted MIMO-OFDMA Terahertz Communications
Wanming Hao, Gangcan Sun, Ming Zeng +4
Recently, terahertz (THz) communication has drawn considerable attention as one of the promising technologies for the future wireless communications owning to its ultra-wide bandwi…
Deep Learning Based Antenna Selection for Channel Extrapolation in FDD Massive MIMO
Yindi Yang, Shun Zhang, Feifei Gao +3
In massive multiple-input multiple-output (MIMO) systems, the large number of antennas would bring a great challenge for the acquisition of the accurate channel state information,…
Deep Learning Optimized Sparse Antenna Activation for Reconfigurable Intelligent Surface Assisted Communication
Shunbo Zhang, Shun Zhang, Feifei Gao +2
To capture the communications gain of the massive radiating elements with low power cost, the conventional reconfigurable intelligent surface (RIS) usually works in passive mode. H…
On the Complexity Reduction of Uplink Sparse Code Multiple Access for Spatial Modulation
Ibrahim Al-Nahhal, Octavia A. Dobre, Salama Ikki
Multi-user spatial modulation (SM) assisted by sparse code multiple access (SCMA) has been recently proposed to provide uplink high spectral efficiency transmission. The message pa…
Hardware Impaired Ambient Backscatter NOMA Systems: Reliability and Security
Xingwang Li, Mengle Zhao, Ming Zeng +4
Non-orthogonal multiple access (NOMA) and ambient backscatter communication have been envisioned as two promising technologies for the Internet-of-things due to their high spectral…
Rate-Splitting Multiple Access: Unifying NOMA and SDMA in MISO VLC Channels
Shimaa Naser, Lina Bariah, Wael Jaafar +4
The increased proliferation of connected devices requires a paradigm shift towards the development of innovative technologies for the next generation of wireless systems. One of th…
Energy-Efficient Resource Allocation for IRS-Assisted Multi-Antenna Uplink Systems
M Zeng, E. B. Mohamed, O. A. Dobre +2
In this paper, we study the resource allocation for an intelligent reflecting surface (IRS)-assisted uplink system, where the base station is equipped with multiple antennas. We pr…
Large Intelligent Surface Assisted Non-Orthogonal Multiple Access: Performance Analysis
Lina Bariah, Sami Muhaidat, Paschalis C. Sofotasios +3
Large intelligent surface (LIS) has recently emerged as a potential enabling technology for 6G networks, offering extended coverage and enhanced energy and spectral efficiency. In…
Battery Recharging Time Models for Reconfigurable Intelligent Surface-Assisted Wireless Power Transfer Systems
Lina Mohjazi, Sami Muhaidat, Qammer H. Abbasi +3
In this paper, we develop an analytical framework for the statistical analysis of the battery recharging time (BRT) in reconfigurable intelligent surfaces (RISs) aided wireless pow…
A Novel Heap-based Pilot Assignment for Full Duplex Cell-Free Massive MIMO with Zero-Forcing
Hieu V. Nguyen, Van-Dinh Nguyen, Octavia A. Dobre +4
This paper investigates the combined benefits of full-duplex (FD) and cell-free massive multiple-input multipleoutput (CF-mMIMO), where a large number of distributed access points…
Spectral-Energy Efficiency Trade-off-based Beamforming Design for MISO Non-Orthogonal Multiple Access Systems
Haitham Al-Obiedollah, Kanapathippillai Cumanan, Jeyarajan Thiyagalingam +4
Energy efficiency (EE) and spectral efficiency (SE) are two of the key performance metrics in future wireless networks, covering both design and operational requirements. For previ…
Reliable Detection for Spatial Modulation Systems
Ibrahim Al-Nahhal, Octavia A. Dobre, Salama Ikki
Spatial modulation (SM) is a promising multiple-input multiple-output system used to increase spectral efficiency. The maximum likelihood (ML) decoder jointly detects the transmitt…
Intelligent Reflecting Surface Enhanced Millimeter-Wave NOMA Systems
Jiakuo Zuo, Yuanwei Liu, Ertugrul Basar +1
In this paper, a downlink intelligent reflecting surface (IRS) enhanced millimeter-wave (mmWave) non-orthogonal multiple access (NOMA) system is considered. A joint optimization pr…
Intra-Channel Nonlinearity Compensation Based on Second-Order Perturbation Theory
O. S. Sunish Kumar, A. Amari, O. A. Dobre +1
The first-order (FO) perturbation theory has been widely investigated to design the digital nonlinearity compensation (NLC) technique to deal with the intra-channel fiber nonlinear…
Mobile Edge Computing and Artificial Intelligence: A Mutually-Beneficial Relationship
Ahmed A. Al-habob, Octavia A. Dobre
This article provides an overview of mobile edge computing (MEC) and artificial intelligence (AI) and discusses the mutually-beneficial relationship between them. AI provides revol…