2.2k citations · 6.7k across the 213 of their papers we have counts for
23 papers · 1 filter
Bender's Decomposition for Optimization Design Problems in Communication Networks
Ahmed Ibrahim, Octavia A. Dobre, Telex M. N. Ngatched +1
Various types of communication networks are constantly emerging to improve the connectivity services and facilitate the interconnection of various types of devices. This involves t…
On the Spectral and Energy Efficiencies of Full-Duplex Cell-Free Massive MIMO
Hieu V. Nguyen, Van-Dinh Nguyen, Octavia A. Dobre +4
In-band full-duplex (FD) operation is practically more suited for short-range communications such as WiFi and small-cell networks, due to its current practical limitations on the s…
Fiber Nonlinearity Mitigation via the Parzen Window Classifier for Dispersion Managed and Unmanaged Links
Abdelkerim Amari, Xiang Lin, Octavia A. Dobre +2
Machine learning techniques have recently received significant attention as promising approaches to deal with the optical channel impairments, and in particular, the nonlinear effe…
Codebook-Based Max-Min Energy-Efficient Resource Allocation for Uplink mmWave MIMO-NOMA Systems
Wanming Hao, Ming Zeng, Gangcan Sun +4
In this paper, we investigate the energy-efficient resource allocation problem in an uplink non-orthogonal multiple access (NOMA) millimeter wave system, where the fully-connected-…
VLC-Based Networking: Feasibility and Challenges
Alain R. Ndjiongue, Telex M. N. Ngatched, Octavia A. Dobre +1
Visible-light communication (VLC) has emerged as a prominent technology to address the radio spectrum shortage. It is characterized by the unlicensed and unexploited high bandwidth…
Energy Efficiency Optimization for Secure Transmission in MISO Cognitive Radio Network with Energy Harvesting
Miao Zhang, Kanapathippillai Cumanan, Jeyarajan Thiyagalingam +4
In this paper, we investigate different secrecy energy efficiency (SEE) optimization problems in a multiple-input single-output underlay cognitive radio (CR) network in the presenc…
On Energy Harvesting of Hybrid TDMA-NOMA Systems
Haitham Al-Obiedollah, Kanapathippillai Cumanan, Alister G. Burr +4
In this paper, we investigate energy harvesting capabilities of non-orthogonal multiple access (NOMA) scheme integrated with the conventional time division multiple access (TDMA) s…
Joint Power Control and User Association for NOMA-Based Full-Duplex Systems
Hieu V. Nguyen, Van-Dinh Nguyen, Octavia A. Dobre +3
This paper investigates the coexistence of non-orthogonal multiple access (NOMA) and full-duplex (FD) to improve both spectral efficiency (SE) and user fairness. In such a scenario…
Non-Orthogonal Multiple Access (NOMA): How It Meets 5G and Beyond
S. M. Riazul Islam, Ming Zeng, Octavia A. Dobre +1
Due to massive connectivity and increasing demands of various services and data-hungry applications, a full-scale implementation of the fifth generation (5G) wireless systems requi…
Low-Cost Uplink Sparse Code Multiple Access for Spatial Modulation
Ibrahim Al-Nahhal, Octavia A. Dobre, Ertugrul Basar +1
Spatial modulation (SM)-sparse code multiple access (SCMA) systems provide high spectral efficiency (SE) at the expense of using a high number of transmit antennas. To overcome thi…
A Fast, Accurate, and Separable Method for Fitting a Gaussian Function
Ibrahim Al-Nahhal, Octavia A. Dobre, Ertugrul Basar +2
The Gaussian function (GF) is widely used to explain the behavior or statistical distribution of many natural phenomena as well as industrial processes in different disciplines of…
Optimum Low-Complexity Decoder for Spatial Modulation
Ibrahim Al-Nahhal, Ertugrul Basar, Octavia A. Dobre +1
In this paper, a novel low-complexity detection algorithm for spatial modulation (SM), referred to as the minimum-distance of maximum-length (m-M) algorithm, is proposed and analyz…
Joint Antenna Array Mode Selection and User Assignment for Full-Duplex MU-MISO Systems
Hieu V. Nguyen, Van-Dinh Nguyen, Octavia A. Dobre +2
This paper considers a full-duplex (FD) multiuser multiple-input single-output system where a base station simultaneously serves both uplink (UL) and downlink (DL) users on the sam…
Time Reversal based MAC for Multi-Hop Underwater Acoustic Networks
Ruiqin Zhao, Hao Long, Octavia A. Dobre +3
Constrained-energy underwater acoustic nodes are typically connected via a multi-hop underwater acoustic network (MHUAN) to cover a broad marine region. Recently, protocols for eff…
Energy-Efficient Power Allocation in Uplink mmWave Massive MIMO with NOMA
Ming Zeng, Wanming Hao, Octavia A. Dobre +1
In this paper, we study the energy efficiency (EE) maximization problem for an uplink millimeter wave massive multiple-input multiple-output system with non-orthogonal multiple acc…
Energy-Efficient Joint User-RB Association and Power Allocation for Uplink Hybrid NOMA-OMA
Ming Zeng, Animesh Yadav, Octavia A. Dobre +1
In this paper, energy efficient resource allocation is considered for an uplink hybrid system, where non-orthogonal multiple access (NOMA) is integrated into orthogonal multiple ac…
Securing Downlink Massive MIMO-NOMA Networks with Artificial Noise
Ming Zeng, Nam-Phong Nguyen, Octavia A. Dobre +1
In this paper, we focus on securing the confidential information of massive multiple-input multiple-output (MIMO) non-orthogonal multiple access (NOMA) networks by exploiting artif…
A Machine Learning-Based Detection Technique for Optical Fiber Nonlinearity Mitigation
Abdelkerim Amari, Xiang Lin, Octavia A. Dobre +2
We investigate the performance of a machine learning classification technique, called the Parzen window, to mitigate the fiber nonlinearity in the context of dispersion managed and…
Energy Efficient Beamforming Design for MISO Non-Orthogonal Multiple Access Systems
Haitham Al-Obiedollah, Kanapathippillai Cumanan, Jeyarajan Thiyagalingam +3
When considering the future generation wireless networks, non-orthogonal multiple access (NOMA) represents a viable multiple access technique for improving the spectral efficiency.…
Sum Rate Fairness Trade-off-based Resource Allocation Technique for MISO NOMA Systems
Haitham Al-Obiedollah, Kanapathippillai Cumanan, Jeyarajan Thiyagalingam +3
In this paper, we propose a beamforming design that jointly considers two conflicting performance metrics, namely the sum rate and fairness, for a multiple-input single-output non-…
Energy Efficiency Fairness Beamforming Designs for MISO NOMA Systems
Haitham Al-Obiedollah, Kanapathippillai Cumanan, Jeyarajan Thiyagalingam +3
In this paper, we propose two beamforming designs for a multiple-input single-output non-orthogonal multiple access system considering the energy efficiency (EE) fairness between u…
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 Impact of Mode Selection on Effective Capacity of Device-to-Device Communication
Syed Waqas Haider Shah, M. Mahboob ur Rahman, Adnan N. Mian +3
Consider a device to device (D2D) link which utilizes the mode selection to decide between the direct mode and cellular mode. This paper investigates the impact of mode selection o…