Alister G. Burr
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View article: CSI Compression Beyond Latents: End-to-End Hybrid Attention-CNN Networks with Entropy Regularization
CSI Compression Beyond Latents: End-to-End Hybrid Attention-CNN Networks with Entropy Regularization Open
Massive MIMO systems rely on accurate Channel State Information (CSI) feedback to enable high-gain beam-forming. However, the feedback overhead scales linearly with the number of antennas, presenting a major bottleneck. While recent deep l…
View article: Lightweight Graph Neural Networks for Enhanced 5G NR Channel Estimation
Lightweight Graph Neural Networks for Enhanced 5G NR Channel Estimation Open
Effective channel estimation CE is critical for optimizing the performance of 5G New Radio NR systems particularly in dynamic environments where traditional methods struggle with complexity and adaptability This paper introduces GraphNet a…
View article: Exploring O-RAN Compression Techniques in Decentralized Distributed MIMO Systems: Reducing Fronthaul Load
Exploring O-RAN Compression Techniques in Decentralized Distributed MIMO Systems: Reducing Fronthaul Load Open
This paper explores the application of uplink fronthaul compression techniques within Open RAN (O-RAN) to mitigate fronthaul load in decentralized distributed MIMO (DD-MIMO) systems. With the ever-increasing demand for high data rates and …
View article: Pilot and Data Power Control for Uplink Cell-free massive MIMO
Pilot and Data Power Control for Uplink Cell-free massive MIMO Open
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 enhance system performance under real-time channel conditi…
View article: Testbed Development: An Intelligent O-RAN based Cell-Free MIMO Network
Testbed Development: An Intelligent O-RAN based Cell-Free MIMO Network Open
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 equivalent to multiple conventional cells. This paper pres…
View article: COST INTERACT Whitepaper on Signal Processing for Communications, Localization, and Intergrated Sensing and Communication
COST INTERACT Whitepaper on Signal Processing for Communications, Localization, and Intergrated Sensing and Communication Open
The upcoming next generation of wireless communication is anticipated to revolutionize the conventional functionalities of the network by adding sensing and localization capabilities, low-power communication, wireless brain computer intera…
View article: Performance Analysis of Traditional and Network Coded Transmission in Infrastructure-less Multi-hop Wireless Networks
Performance Analysis of Traditional and Network Coded Transmission in Infrastructure-less Multi-hop Wireless Networks Open
Infrastructure-less Multi-hop Wireless Networks are the backbone for mission critical communications such as in disaster and battlefield scenarios. However, interference signals in the wireless channel cause losses to transmission in wirel…
View article: Bussgang revisited: effect of quantization on signal to distortion plus noise ratio with non-Gaussian signals
Bussgang revisited: effect of quantization on signal to distortion plus noise ratio with non-Gaussian signals Open
Quantization plays an important role in the physical layer (PHY) disaggregation which is fundamental to the Open Radio Access Network (O-RAN) architecture, since digitized signals must be transmitted over fronthaul connections. In this pap…
View article: Performance Analysis of DoA Estimation for FDD Cell Free Systems Based on Compressive Sensing Technique
Performance Analysis of DoA Estimation for FDD Cell Free Systems Based on Compressive Sensing Technique Open
The concept of cell free (CF) massive MIMO systems is a prospective fifth generation communication technology that effort with base stations for the privilege of user-centric coverage. Most studies on the CF massive MIMO system in the past…
View article: Future Trends and Recommendations
Future Trends and Recommendations Open
Wireless technologies are constantly evolving and have done so for more than two decades, when only considering mobile communications, going from 1G to 4G and soon 5G. This strong evolution has been driven by meeting between the technology…
View article: Single candidate optimizer: a novel optimization algorithm
Single candidate optimizer: a novel optimization algorithm Open
Single-solution-based optimization algorithms have gained little to no attention by the research community, unlike population-based approaches. This paper proposes a novel optimization algorithm, called Single Candidate Optimizer (SCO), th…
View article: Joint User-Centric Clustering and Multi-cell Radio Resource Management in Coordinated Multipoint Joint Transmission
Joint User-Centric Clustering and Multi-cell Radio Resource Management in Coordinated Multipoint Joint Transmission Open
Coordinated multipoint joint transmission (JT-CoMP) is a promising solution to address inter-cell interference in dense future wireless networks due its strength in converting interfering signals into useful signals, thereby enhancing capa…
View article: Iterative Interference Cancellation for Multi-Carrier Modulation in MIMO-DWT Downlink Transmission
Iterative Interference Cancellation for Multi-Carrier Modulation in MIMO-DWT Downlink Transmission Open
The Multiple-Input Multiple-Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) scheme represents the dominant radio interface for broadband multicarrier communication systems. However, with insufficient Cyclic Prefixes (CP), Int…
View article: Multi-User Wireless Information and Power Transfer in FBMC-Based IoT Networks
Multi-User Wireless Information and Power Transfer in FBMC-Based IoT Networks Open
In order to address the shortcomings of orthogonal frequency division multiplexing (OFDM) and extend the lifetime of energy-constrained Internet-of-Things (IoT) devices, the combination of filter bank multi-carrier (FBMC) and simultaneous …
View article: Coding and processing for advanced wireless networks
Coding and processing for advanced wireless networks Open
Coding and processing for advanced wireless networks presents a wide area of PHY related aspects of radio communication systems. Despite this broad scope, there are clearly emerging two essential paradigms present in the majority of works …
View article: Spectral-Energy Efficiency Trade-Off-Based Beamforming Design for MISO Non-Orthogonal Multiple Access Systems
Spectral-Energy Efficiency Trade-Off-Based Beamforming Design for MISO Non-Orthogonal Multiple Access Systems Open
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 previous conventional resource allocation techniques, these two …
View article: Design and Convergence Analysis of an IIC-based BICM-ID Receiver for FBMC-QAM Systems
Design and Convergence Analysis of an IIC-based BICM-ID Receiver for FBMC-QAM Systems Open
In this paper, an iterative interference cancellation (IIC) based BICM-ID receiver is designed to cancel the intrinsic interference in FBMC-QAM systems. The proposed receiver consist of an inner decoder, which combines iterative demodulati…
View article: Design and Convergence Analysis of an IIC-based BICM-ID Receiver for FBMC-QAM Systems
Design and Convergence Analysis of an IIC-based BICM-ID Receiver for FBMC-QAM Systems Open
Next generation cellular networks are expected to connect billions of devices through its massive machine-type communication (mMTC) use case. To achieve this, waveforms with improved spectral confinement and high spectral efficiency compar…
View article: Location-Aware Transmission for Two-Cell Wireless Networks With Caching
Location-Aware Transmission for Two-Cell Wireless Networks With Caching Open
A novel downlink transmission selection scheme based on the locations of users for network coded cache-enabled, Multiple-Input Multiple-Output (MIMO) systems is proposed in this paper. Caches are available at both base stations (BSs) and m…
View article: On Energy Harvesting of Hybrid TDMA-NOMA Systems
On Energy Harvesting of Hybrid TDMA-NOMA Systems Open
In this paper, we investigate energy harvesting capabilities of non-orthogonal multiple access (NOMA) scheme integrated with the conventional time division multiple access (TDMA) scheme, which is referred to as hybrid TDMA-NOMA system. In …
View article: Multiuser detection for uplink non‐orthogonal multiple access system
Multiuser detection for uplink non‐orthogonal multiple access system Open
Non‐orthogonal multiple access (NOMA) makes multiple users to overload the same wireless resources by utilising the superposition coding principle, so that NOMA can improve the system capacity and spectral efficiency. Therefore, NOMA has r…
View article: Energy Efficiency Optimization for Secure Transmission in MISO Cognitive Radio Network with Energy Harvesting
Energy Efficiency Optimization for Secure Transmission in MISO Cognitive Radio Network with Energy Harvesting Open
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 presence of an energy harvesting receiver. In particular, these en…
View article: Sum Rate Fairness Trade-off-based Resource Allocation Technique for MISO NOMA Systems
Sum Rate Fairness Trade-off-based Resource Allocation Technique for MISO NOMA Systems Open
—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-orthogonal multiple access system. Unlike the conventional…
View article: On the Energy Efficiency of Limited-Backhaul Cell-Free Massive MIMO
On the Energy Efficiency of Limited-Backhaul Cell-Free Massive MIMO Open
We investigate the energy efficiency performance of cell-free Massive multiple-input multiple-output (MIMO), where the access points (APs) are connected to a central processin g unit (CPU) via limited-capacity links. Thanks to the distribu…
View article: Max–Min Rate of Cell-Free Massive MIMO Uplink With Optimal Uniform Quantization
Max–Min Rate of Cell-Free Massive MIMO Uplink With Optimal Uniform Quantization Open
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View article: Max-Min Rate of Cell-Free Massive MIMO Uplink with Optimal Uniform Quantization
Max-Min Rate of Cell-Free Massive MIMO Uplink with Optimal Uniform Quantization Open
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, and send back a quantized version of this weighted signal …