Hamed Al-raweshidy

Hamed Al-raweshidy
Brunel University London · Department of Electronic and Computer Engineering

PhD

About

422
Publications
102,874
Reads
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3,820
Citations
Citations since 2017
145 Research Items
2334 Citations
20172018201920202021202220230100200300400500
20172018201920202021202220230100200300400500
20172018201920202021202220230100200300400500
20172018201920202021202220230100200300400500
Additional affiliations
August 2003 - present
Brunel University London
Position
  • Director of Wireless Networks and Communications Centre
August 2003 - present
Brunel University London
Position
  • Director of Wireless Networks and Communications Centre
Description
  • Working on 5G, IoT , C-RAN, RoF and Big Data with Cloud

Publications

Publications (422)
Article
Full-text available
The rapid leap in wireless communication systems incorporated a plethora of new features and challenges that accompany the era of 6G and beyond being investigated and developed. Recently, machine learning techniques were widely deployed in many fields, especially wireless communications. It was used to improve network traffic performance regarding...
Article
The fifth-generation (5G) technology is seen to be a solution for developing countries to improve their quality of services in terms of transportation, education, health, agriculture, and other fields, thereby holding the promises of economic transformation by improving productivity and the quality of life. The paper considers some of the challenge...
Article
Full-text available
Mobile wireless sensor network (MWSN) technology is a fundamental element of the Internet of Things (IoT) in which hundreds to thousands of sensor nodes (SNs) are connected via wireless channels capable of providing a digital interface to real-life objects. Energy consumption, connectivity, scalability, and security are the main challenges in MWSN,...
Preprint
p>In this paper, the fundamental statistics of fluctuating Beckmann shadowed (FBS) fading model which is composite of fluctuating Beckmann (FB) and inverse Nakagami-$m$ distributions, are provided. Accordingly, a wide range of composite generalized fading distributions are obtained as special cases of the proposed distribution, such as, double shad...
Preprint
p>In this paper, the fundamental statistics of fluctuating Beckmann shadowed (FBS) fading model which is composite of fluctuating Beckmann (FB) and inverse Nakagami-$m$ distributions, are provided. Accordingly, a wide range of composite generalized fading distributions are obtained as special cases of the proposed distribution, such as, double shad...
Article
In this paper, a parallel MZM and a quadrupling frequency technique are used to produce a 72 GHz mm-wave. The determined optical sideband suppression ratio (OSSR) is 71 decibels. This mm-wave signal's performance is compared to that of two optical modulators, the Mach Zehnder Modulator (MZM) and the Electro Absorption Modulator (EAM) as well as two...
Article
Full-text available
Mixing the wireless medium with fiber optics can form a new communication system called a radio‐over‐fiber (RoF) network; it is a promising solution that can provide high bandwidth and a reliable connection between numerous sensors in wireless sensor networks (WSN) and the central office (base station) within a particular area. This paper first des...
Article
Full-text available
The Internet of medical things (IoMT) is one of the most promising fields that is expected to rapidly expand in the near future. Consequently, vast amounts of data will be generated, necessitating faster and more intensive processing capabilities. Several healthcare architectures based on Edge/Fog technologies have been created to lower healthcare...
Preprint
p>In this paper, the impact of the non-linearity of the propagation medium on the extended $\eta$-$\mu$ fading distribution is studied. In particular, the extended $\alpha$-$\eta$-$\mu$ fading model in which the parameter $\alpha$ represents the non-linearity of the propagation environment is presented via providing the exact and asymptotic of the...
Preprint
p>In this paper, the impact of the non-linearity of the propagation medium on the extended $\eta$-$\mu$ fading distribution is studied. In particular, the extended $\alpha$-$\eta$-$\mu$ fading model in which the parameter $\alpha$ represents the non-linearity of the propagation environment is presented via providing the exact and asymptotic of the...
Article
Full-text available
From a security perspective, the research of the jeopardized wireless communications and its expected ultra-densified ubiquitous wireless networks urge the development of a robust intrusion detection system (IDS) with powerful capabilities which could not be sufficiently provided by the existing conventional systems. IDSs are still insufficient aga...
Article
Full-text available
A load frequency controller (LFC) is a crucial part in the distribution of a power system network (PSN) to restore its frequency response when the load demand is changed rapidly. In this paper, an artificial neural network (ANN) technique is utilised to design the optimal LFC. However, the training of the optimal ANN model for a multi-area PSN is a...
Preprint
p>In this paper, the extended α-η-F composite fading distribution is proposed. In this model, the propagation environment of the extended η-F composite fading is assumed to be non-linear via usingα-root instead of square-root for the signal envelope. Hence, the fundamental statistics, namely, the probability density function (PDF), cumulative distr...
Preprint
p>In this paper, the extended α-η-F composite fading distribution is proposed. In this model, the propagation environment of the extended η-F composite fading is assumed to be non-linear via usingα-root instead of square-root for the signal envelope. Hence, the fundamental statistics, namely, the probability density function (PDF), cumulative distr...
Article
Full-text available
The constraints of 5G communication systems compel further improvements to be compatible with 6G candidate technologies, especially to cope with the limited wavelengths of blockage-sensitive terahertz (THz) frequencies. In this paper integrating cooperative simultaneous wireless information and power transfer (SWIPT) and hybrid-non-orthogonal multi...
Article
Abstract In this letter, probability density function (PDF) of the sum and maximum of non‐identical fluctuating two‐ray (FTR) variates are derived in terms of the power and exponential functions. To this effect, novel mathematically tractable expressions of the outage probability (OP) and average bit error probability (ABEP) for both the maximal ra...
Article
Full-text available
In this paper, cooperative simultaneous wireless information and power transfer (SWIPT) terahertz (THz) multiple-input multiple-output (MIMO) nonorthogonal multiple access (NOMA) are considered. The aim is to improve wireless connectivity, resource management, scalability, and user fairness, as well as to enhance the overall performance of wireless...
Article
Full-text available
In this paper, cooperative simultaneous wireless information and power transfer terahertz (THz)-nonorthogonal multiple access (NOMA) is considered to overcome the challenging shortages that THz communications have due to THz characteristics. The proposed system presents a noticeable improvement in energy efficiency (EE) and spectral efficiency (SE)...
Article
Full-text available
In recent years, with the advent of 6G and intelligent devices, sensors, and new applications such as virtual reality and autonomous driving, user data traffic has exploded, especially video traffic and small IoT packets. These bandwidth-hungry applications require an increased network capacity and user access. The 6G network may use nonorthogonal...
Article
Full-text available
Modern wearable healthcare devices require new technologies with resource efficiency in terms of high performance, low energy consumption and diagnostic accuracy. In the field of artificial intelligence, the convolutional neural network (CNN) has performed as an effective algorithm. Field-programmable gate arrays (FPGAs) have been extensively utili...
Article
Full-text available
Remaining Useful Life (RUL) is used to provide an early indication of failures that required performing maintenance and/or replacement of the system in advance. Accurate RUL prediction offers cost-effective operation for decision-makers in the industry. The availability of data using intelligence sensors leverages the power of data-driven methods f...
Article
Full-text available
Due to the huge variety of 5G services, Network slicing is promising mechanism for dividing the physical network resources in to multiple logical network slices according to the requirements of each user. Highly accurate and fast traffic classification algorithm is required to ensure better Quality of Service (QoS) and effective network slicing. Fi...
Article
Full-text available
Fifth-generation (5G) empowered internet of things (IoT) edge networks suffer from latency in delay-sensitive applications. To fulfil the low latency requirements of beyond fifth-generation (B5G)-IoT applications and provide quality of service (QoS) to IoT-edge communication, it is important to minimize server delay. Furthermore, 5G-IoT systems con...
Article
Full-text available
Recently, the increasing demand to transfer data through the Internet has pushed the Internet infrastructure to the final edge of the ability of these networks. This high demand causes a deficiency of rapid response to emergencies and disasters to control or reduce the devastating effects of these disasters. As one of the main cornerstones to addre...
Article
Full-text available
In this paper, the impact of the non-linearity of the propagation medium on the extended $\eta $ - $\mu $ fading distribution is studied. In particular, the extended $\alpha $ - $\eta $ - $\mu $ fading model in which the parameter $\alpha $ represents the non-linearity of the propagation environment is presented via providing the exact and...
Article
Full-text available
There are many problems in cellular communications cannot be resolved traditionally. The quantum communications can add new dimensions, safety, encryption and solution to the traditional networks because of its robust physical strength. However, it is not entirely realised how to adapt the quantum into the traditional communications because it is n...
Article
Full-text available
The fading scenario of many realistic wireless communication transmission systems, such as, multi-hop communications and spectrum sharing in cognitive radio networks (CRNs), can be modelled by the product and the ratio of the product of the random variables (RVs) of the channel distribution. However, there is no work has been investigated in the li...
Article
In this letter, the performance of millimeter-wave (mmWave) communications with selection combining (SC) over non-identical fluctuating two-ray (FTR) fading channels is analyzed. Consequently, the exact expressions and asymptotic approximations at high signal-to-noise ratio (SNR) regime of the moment generating function (MGF) and probability densit...
Article
Full-text available
Recently, wireless sensor networks (WSNs) were perceived as the foundation infrastructure that paved the way to the emergence of the Internet of Things (IoT). However, a challenging issue exists when WSNs are integrated into the IoT because of high energy consumption in their nodes and poor network lifespan. Therefore, the elementary discussions in...
Article
In this paper, a mixture Gamma shadowed (MGS) model is proposed as a unified composite distribution via representing the shadowing impact by an inverse Nakagami-m. The exact expression and the asymptotic behaviour at high average signal-to-noise ratio (SNR) regime of the fundamental statistics of a MGS distribution are derived first. These statisti...
Article
Full-text available
Software-Defined Networking (SDN) is an innovative technology which provides a programmable network control which is decoupled from the physical infrastructure. Network Virtualization (NV) is the phenomenon where a given physical network infrastructure and its resources are abstracted to create multiple logical virtual network slices of the underly...
Article
Full-text available
An Intelligent Internet of Things network based on an Artificial Intelligent System, can substantially control and reduce the congestion effects in the network. In this paper, an artificial intelligent system is proposed for eliminating the congestion effects in traffic load in an Intelligent Internet of Things network based on a deep learning Conv...
Article
In this study, an adaptive data compression scheme (ADCS) is proposed for efficiently controlling the IoT device compression rate and energy consumption in the cloud based IoT network. The ADCS consists of two data compression schemes, the sensor Lempel–Ziv–Welch (S-LZW) scheme and the sequential lossless entropy compression (S-LEC) scheme. In Auto...
Article
Full-text available
Electrostatic spraying (ESS) has been used to improve plant coverage with treatment fluids. An Induction charging nozzle has been used to investigate the role of electrostatic forces on target coverage with spray fluid. Five metal targets were examined, conical, flat, cylindrical, ellipsoid and spherical. Theoretical and experimental studies were c...
Article
Full-text available
COMSOL FEM model was developed and simulated to identify the electric field distribution and induced current on different grounded targets (flat, cylindrical and spherical). The nozzle used is a twin fluid nozzle which can be operated at different flow rate. The spray current was measured with programmable Electrometer Model 617 connected to the Fa...
Article
In this letter, the performance of the selection combining (SC) scheme over independent and non-identically distributed (i.n.i.d.) Fisher-Snedecor $\mathcal {F}$ fading channels is analysed. Accordingly, the probability density function (PDF) and the moment generating function (MGF) of the maximum of i.n.i.d. Fisher-Snedecor $\mathcal {F}$ vari...
Article
Full-text available
Visible Light Communication (IEEE 802.15.7) implements a centralized topology using a visible-light personal network coordinator (VPNC) for network access and data sharing. A VPNC is a user-device (UD) that is dynamically selected based on several parameters ranking its ability as the most capable device in the attocell network. Theoretical perform...
Conference Paper
Maximum Power Point Tracking (MPPT) technique is a vital element for improving the efficiency, stability and reliability of a photovoltaic system. Adaptive Neural Fuzzy Interference System (ANFIS) is used to design the MPPT due to its fast-tracking speed to reach the steady-state and low oscillation. However, it requires a precise data to develop a...
Conference Paper
Full-text available
In this paper, a simulation model and practical testbed for green Internet of Things (IoT) edge devices are proposed based on solar harvester with constant voltage-maximum power point tracking (CV-MPPT) technique. Billions of connected edge devices represent the essential part of the IoT through the IP-enabled sensor networks based on IPv6 over Low...
Preprint
Full-text available
In this paper, we propose a mixture Gamma shadowed (MGS) distribution as a unified composite model via representing the shadowing by an inverse Nakagami-$m$. Accordingly, the exact expression and the asymptotic behaviour at high average signal-to-noise ratio (SNR) regime of the fundamental statistics of a MGS distribution are derived first. These s...
Article
An 86-year-old female presented to the Emergency Department (ED) in respiratory distress after choking on a sandwich at home. Her family had noticed that she had had difficulty during and coughing after swallowing for several months. Her initial chest x-ray showed diffuse alveolar infiltrates in both lungs and blood tests showed normal white cells...
Preprint
In this paper, the statistical properties of the product of independent and non-identically distributed mixture Gamma (MG) random variables (RVs) are provided first. Specifically, simple exact closed-form expressions for the probability density function (PDF), cumulative distribution function (CDF), and moment generating function (MGF) are derived...
Article
An intelligent software defined network (ISDN) based on an intelligent controller can manage and control the network in a remarkable way. In this article, a methodology is proposed to estimate the packet flow at the sensing plane in the software defined network-Internet of Things based on a partial recurrent spike neural network (PRSNN) congestion...
Article
In this paper, the effective rate (ER) of wireless communication systems and the performance of energy detection (ED) based spectrum sensing over $\alpha -\eta -\kappa -\mu$ fading channels are analysed. To this end, novel mathematically tractable exact expressions of the ER, the average detection probability (ADP) and the average area under the...
Article
A R T I C L E I N F O Keywords: Artificial neural network (ANN) Fuzzy logic control (FLC) Maximum power point tracking (MPPT) Photovoltaic (PV) Perturb and observe (P&O) Efficiency of MPPT (MPPT) A B S T R A C T In this paper, a feedforward Artificial Neural Network (ANN) technique using experimental data is designed for predicting the maximum powe...
Article
Full-text available
The utilization of conventional modeling strategies in the identification and control of a nonlinear dynamical system suffers from some weaknesses. These include absence of precise, conventional knowledge about the system, a high degree of uncertainty, strongly nonlinear and time-varying behavior. In this paper, a modified training algorithm for th...
Chapter
In this work, a new approach is introduced to generate 240 GHz millimeter-wave signals using dual Parallel Mach-Zehnder modulators only. 216 GHz, 240 Ghz, 264 GHz and 288 GHz can be generated by tuning the input frequency of local oscillator to 18 Ghz, 20 GHz, 22 GHz and 24 GHz individually. By properly setting of the MZM biasing point, RF LO frequ...
Chapter
Full-text available
Chapter 24 Induction Electrostatic Sprays in Agriculture Industry. In this chapter we have mentioned all the papers and the scintefic research recording in agriculture field application from 1975 to 2015 .In addition, we have divided the histry of electroststic force used in agriculture applications to three periods as you will see it when you chec...
Article
In this letter, the channel capacity under different transmission policies is analysed using a mixture gamma (MG) distribution. Specifically, the capacity of the channel with inversion and fixed rate (CIFR), optimum power and rate adaptation (OPRA), and truncated inversion and fixed rate (TIFR) are derived in unified exact simple closed-form expres...
Article
Full-text available
The high optical bandwidth requirement in the mobile fronthaul link of the next generation cloud radio access network represents one of the major design constraints. In this study, a digital fronthaul link based on digital radio over fibre system that integrates the duobinary coding scheme with the optical single sideband (OSSB) transmission is pro...
Article
Full-text available
In this study, the secrecy performance of physical layer when both the main and wiretap channels undergo κ − μ shadowed fading conditions is analysed. In particular, the average secrecy capacity, secure outage probability (SOP), the lower bound of SOP (SOPL), and the probability of strictly positive secrecy capacity are derived by using the classic...
Article
Full-text available
The Internet and mobile services provided by high-speed train (HST) communication networks are affected by high occurrences of interruptions due to high-speed movement. Rapid connection and disconnection with the access points (APs) impact the performance of quality-of-service to indoor train communication. To ensure a high-data-rate delivery and h...
Article
Full-text available
In vehicular communications, periodic one-hop broadcast of beacons allows cooperative awareness for vehicles. To avoid congestion in the shared channel used for transmission of beacons, a joint beacon frequency and power control protocol based on game theory is presented in this paper. The existence, uniqueness and stability of the Nash Equilibrium...
Preprint
In this letter, some applications of wireless communication systems over $\alpha-\eta-\kappa-\mu$ fading channels are analysed. More specifically, the effective rate and the average of both the detection probability and area under the receiver characteristics curve of energy detection based spectrum sensing are studied. Furthermore, highly accurate...
Article
Full-text available
In this paper, we analyse the performance of physical layer security over Fluctuating Beckmann (FB) fading channel, which is an extended model of both the κ-μ shadowed and the classical Beckmann distributions. Specifically, the average secrecy capacity (ASC), secure outage probability (SOP), the lower bound of SOP (SOPL), and the probability of str...
Article
Full-text available
Maximum power point tracking (MPPT) techniques are a fundamental part in photovoltaic system design for increasing the generated output power of a photovoltaic array. Whilst varying techniques have been proposed, the adaptive neural-fuzzy inference system (ANFIS) is the most powerful method for an MPPT because of its fast response and less oscillat...
Article
Full-text available
Quantum computing can provide a solution for many problems that classical communication networks encounter, but the knowledge gap between these two is not bridged yet. Accordingly, this paper has proposed directions, evaluations and futuristic quantum solutions to the cloud based cellular communications. This paper shows the effect of using quantum...
Article
Electrical power demands have increased significantly over the last years due to rapid increase in air conditioning units and home appliances per domestic unit, particularly in Iraq. Having an uninterrupted power supply is essential for the continuity of power-generated home services and industrial platforms. Currently, in Iraq, electrical power in...
Article
Full-text available
This paper presents a proposal for an innovative base station for 5G and beyond for a mobile network system based on the Evolved Packet System (EPS). Functions of EPS elements can be achieved by the SVeNB, according to the type of function or service and the device that is used to achieve that function or service. The current system, even if these...
Article
Full-text available
The Internet of things (IoT) comprises a large number of sensor nodes with limited processing, storage, and battery abilities. The IoT has to operate in a constrained environment with specific challenges, such as hardware malfunctions, battery depletion, and harsh wireless environmental conditions. Deploying a reliable IoT is especially important f...
Article
Keeping a connection continuity during the movement of a Mobile Node (MN) between access points without any suspension of provided services is one of the most pressing issues should be solved. Long handover processing causes interruptions in session connection, high rate of data loss, and long End-to-End delay time. Smart Virtualization means coope...
Preprint
In this paper, the performance of the selection combining (SC) scheme over Fisher-Snedecor $\mathcal{F}$ fading channels with independent and non-identically distributed (i.n.i.d.) branches is analysed. The probability density function (PDF) and the moment generating function (MGF) of the maximum i.n.i.d. Fisher-Snedecor $\mathcal{F}$ variates are...
Preprint
In this paper, we analyse the performance of physical layer security over Fluctuating Beckmann (FB) fading channel which is an extended model of both the $\kappa-\mu$ shadowed and the classical Beckmann distributions. Specifically, the average secrecy capacity (ASC), secure outage probability (SOP), the lower bound of SOP (SOP$^L$), and the probabi...
Article
Advances in the development of low powered sensors has meant they can now provide solutions to Internet of Things (IoT) networks that suffer from restricted power supply and a lack of resource facilities. In this paper, a hybrid time division multiple access (TDMA)-carrier sense multiple access with a collision avoidance mechanism (CSMA/CA) medium...
Preprint
The effective rate of Fluctuating Beckmann (FB) fading channel is analysed. The moment generating function (MGF) of the instantaneous signal-to-noise (SNR) is used first to derive the effective rate for arbitrary values of the fading parameters in terms of the extended generalised bivariate Meijer's-$G$ function (EGBMGF). For integer valued of the...
Article
Full-text available
This work shows the effect of a novel fractal-based electromagnetic bandgap (FEBG) structure between dual planar inverted-F antenna (PIFA) elements. The FEBG structure without any shorting pins builds on a well-known fractal structure called Sierpinski carpet, where two iterations have been applied as a uniplanar EBG between dual PIFAs elements to...
Chapter
Emergencies can happen at anytime and anywhere. Governments around the world try to ensure public and private organizations’ preparedness for all types of potential emergencies. They usually rely on implementing autonomous systems to deal with unpredictable emergency scenarios. This paper proposes an adaptive emergency evacuation approach based on...
Chapter
In the ad hoc networks, nodes create dynamic topologies, with very limited resources, such as bandwidth and energy. In much the same way as other routing protocols, the Ad Hoc Cognitive Packet Network (AHCPN) conventionally applies a fixed transmission power, which is able to achieve reliability in links’ connectivity. In this paper, we propose a p...
Chapter
In this paper, all issues related to Hadoop MapReduce parameter settings are addressed. Some significant parameters of Hadoop MapReduce are tuned using a novel intelligent technique based on both Genetic programming and Genetic Algorithm to optimise the performance of Hadoop MapReduce job. In Hadoop framework, there are more than 150 configurations...
Chapter
In this paper, one of the most important aspects of solar energy resources which are solar irradiation is addressed. A fast analysis and calculation of time series solar irradiation using Hadoop integrated programming environment (RHIPE) is performed. The proposed work is evaluated using data provided by London weather centre for the period from (1...
Article
Full-text available
Honeywords (decoy passwords) have been proposed to detect attacks against hashed password databases. For each user account, the original password is stored with many honeywords in order to thwart any adversary. The honeywords are selected deliberately such that a cyber-attacker who steals a file of hashed passwords cannot be sure, if it is the real...