71 citations · 128 across the 32 of their papers we have counts for
33 papers
Downlink Beamforming Design for NOMA Using Convolutional Neural Networks
Chentong Li, Saeed Mohammadzadeh, Kanapathippillai Cumanan +1
Non-orthogonal multiple access (NOMA) and beamforming are well-established techniques for enabling massive connectivity in future wireless networks. However, many optimal beamformi…
A Spatial Similarity-Guided Pilot Assignment and Access Point Selection for Cell-Free Massive MIMO Networks
Saeed Mohammadzadeh, Kanapathippillai Cumanan, Pei Liu +1
This paper investigates pilot assignment and access point (AP) selection strategies for uplink cell-free massive multiple-input multiple-output (CF-mMIMO) systems. We propose chann…
Channel-Correlation-Based Access Point Selection and Pilot Power Allocation for Cell-Free Massive MIMO
Saeed Mohammadzadeh, Rodrigo C. De Lamare, Kanapathippillai Cumanan +1
This paper proposes a dynamic access point (AP) selection and pilot power allocation (DAPPA) framework for uplink cell-free massive multiple-input multiple-output (CFmMIMO) systems…
NOMA Assisted Downlink Power Allocation in Pinching Antenna Systems Using Convolutional Neural Network
Saeed Mohammadzadeh, Kanapathippillai Cumanan, Zhiguo Ding
In this paper, we consider a flexible-antenna architecture, referred to as a pinching-antenna (PA) system, in which multiple PAs realized by activating small dielectric particles a…
Pilot and Data Power Control for Uplink Cell-free massive MIMO
Saeed Mohammadzadeh, Mostafa Rahmani, Kanapathippillai Cumanan +2
This paper introduces a novel iterative algorithm for optimizing pilot and data power control (PC) in cell-free massive multiple-input multiple-output (CF-mMIMO) systems, aiming to…
Testbed Development: An Intelligent O-RAN based Cell-Free MIMO Network
Yi Chu, Mostafa Rahmani, Josh Shackleton +4
Cell-free multiple input multiple output (CF-MIMO) systems improve spectral and energy efficiencies using distributed access points (APs) to provide reliable service across an area…
Asymptotic Performance of the GSVD-Based MIMO-NOMA Communications with Rician Fading
Chenguang Rao, Zhiguo Ding, Kanapathippillai Cumanan +1
In recent years, the multiple-input multiple-output (MIMO) non-orthogonal multiple-access (NOMA) systems have attracted a significant interest in the relevant research communities.…
Exploiting Deep Learning for Secure Transmission in an Underlay Cognitive Radio Network
Miao Zhang, Kanapathippillai Cumanan, Jeyarajan Thiyagalingam +4
This paper investigates a machine learning-based power allocation design for secure transmission in a cognitive radio (CR) network. In particular, a neural network (NN)-based appro…
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…
Resource Allocation Technique for Hybrid TDMA-NOMA System with Opportunistic Time Assignment
Xinchen Wei, Haitham Al-Obiedollah, Kanapathippillai Cumanan +4
In this paper, we develop a resource allocation technique for a hybrid time division multiple access (TDMA) - non-orthogonal multiple access (NOMA) system with opportunistic time a…
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…
Max-Min Rate of Cell-Free Massive MIMO Uplink with Optimal Uniform Quantization
Manijeh Bashar, Kanapathippillai Cumanan, Alister G. Burr +3
Cell-free Massive multiple-input multiple-output (MIMO) is considered, where distributed access points (APs) multiply the received signal by the conjugate of the estimated channel,…
Evaluation of Low Complexity Massive MIMO Techniques Under Realistic Channel Conditions
Manijeh Bashar, Alister G. Burr, Katsuyuki Haneda +4
A low complexity massive multiple-input multiple-output (MIMO) technique is studied with a geometry-based stochastic channel model, called COST 2100 model. We propose to exploit th…
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…
On the Performance of Backhaul Constrained Cell-Free Massive MIMO with Linear Receivers
Manijeh Bashar, Hien Quoc Ngo, Alister G. Burr +3
Limited-backhaul cell-free Massive multiple-input multiple-output (MIMO), in which the fog radio access network (F-RAN) is implemented to exchange the information between access po…
Robust Beamforming for AN Aided MISO SWIPT System with Unknown Eavesdroppers and Non-linear EH Model
Miao Zhang, Kanapathippillai Cumanan, Lei Ni +2
This work studies a beamforming design for downlink transmission of a multi-user multiple-input single-output (MISO) system where each legitimate user employs a power splitting (PS…
A Study of Dynamic Multipath Clusters at 60 GHz in a Large Indoor Environment
Manijeh Bashar, Katsuyuki Haneda, Alister G. Burr +1
The available geometry-based stochastic channel models (GSCMs) at millimetre-wave (mmWave) frequencies do not necessarily retain spatial consistency for simulated channels, which i…
Beamforming Techniques for Non-Orthogonal Multiple Access in 5G Cellular Networks
Faezeh Alavi, Kanapathippillai Cumanan, Zhiguo Ding +1
In this paper, we develop various beamforming techniques for downlink transmission for multiple-input single-output (MISO) non-orthogonal multiple access (NOMA) systems. First, a b…
On the Secrecy Performance of SWIPT Receiver Architectures with Multiple Eavesdroppers
Furqan Jameel, Shurjeel Wyne, Syed Junaid Nawaz +2
Physical layer security (PLS) has been shown to hold promise as a new paradigm for securing wireless links. In contrast with the conventional cryptographic techniques, PLS methods…
Cell-Free Massive MIMO with Limited Backhaul
Manijeh Bashar, Kanapathippillai Cumanan, Alister G. Burr +2
We consider a cell-free Massive multiple-input multiple-output (MIMO) system and investigate the system performance for the case when the quantized version of the estimated channel…
Enhanced Max-Min SINR for Uplink Cell-Free Massive MIMO Systems
Manijeh Bashar, Kanapathippillai Cumanan, Alister G. Burr +2
In this paper, we consider the max-min signal-to-interference plus noise ratio (SINR) problem for the uplink transmission of a cell-free Massive multiple-input multiple-output (MIM…