A5072060452- Advanced MIMO Systems Optimization
- Advanced Wireless Communication Technologies
- UAV Applications and Optimization
- Online Learning and Analytics
- Cooperative Communication and Network Coding
- Experimental Learning in Engineering
- Wireless Networks and Protocols
- Energy Harvesting in Wireless Networks
- Satellite Communication Systems
- Wireless Communication Networks Research
- IoT Networks and Protocols
- Mobile Ad Hoc Networks
- Online and Blended Learning
- Liver Disease Diagnosis and Treatment
- Opportunistic and Delay-Tolerant Networks
- Cognitive Radio Networks and Spectrum Sensing
- Molecular Communication and Nanonetworks
- Software-Defined Networks and 5G
- Advanced Wireless Network Optimization
- Liver Disease and Transplantation
- Engineering Education and Technology
- Folate and B Vitamins Research
- Cloud Computing and Remote Desktop Technologies
- Human Mobility and Location-Based Analysis
- IoT and Edge/Fog Computing
Helwan University
2010-2024
University of Louisville
2022-2023
British University in Egypt
2021-2022
Terahertz (THz) wireless communication is a promising technology that will enable ultra-high data rates, and very low latency for future communications. Intelligent Reconfigurable Surfaces (IRS) aiding Unmanned Aerial Vehicle (UAV) are two essential technologies play pivotal role in balancing the demands of Sixth-Generation (6G) networks. In practical scenarios, mission completion time energy consumption serve as crucial benchmarks assessing efficiency UAV-IRS enabled THz communication....
The epidemiology and outcomes of community-acquired pneumonia (CAP) in immunocompromised hosts (ICHs) are not well defined. objective this study was to define the CAP ICHs as compared with non-ICHs.This ancillary included a prospective cohort hospitalized adult Louisville residents from 1 June 2014 31 May 2016. An ICH defined per criteria Centers for Disease Control Prevention. Geospatial explored associations between income level, race, age. Mortality non-ICHs evaluated during...
Helicobacter pylori bacteria colonize the gastric mucosa and contribute to occurrence development of gastrointestinal diseases. According WHO, H. are considered class I carcinogen. To detect organisms by IHC expression anti-H. Pylori antibodies in explanted liver tissue; enlarged perihepatic lymph nodes cirrhotic liver; any relation between presence organism histopathological findings tissue. This retrospective cross-sectional study included forty cases patients with decompensated end-stage...
ABSTRACT Active Reconfigurable Intelligent Surface (ARIS) shows promise in boosting the desired signal at receiver user. However, “fully‐connected” architecture of ARIS needs high power due to additional active components. This paper adopts sub‐connected enhance achieved data rates with good energy efficiency Cell Edge Users (CEUs) and addresses “multiplicative fading” effect caused when propagates through a longer path (i.e., serving Base Station (BS)‐ARIS‐CEU) than straight route across BS...
Terahertz communication networks and Intelligent Reflecting Surfaces (IRS) exhibit significant potential in advancing Sixth-Generation (6G) wireless networks, these technologies enable support of ultra-data transmission exploding network capacity. Motivated by the above facts, this paper considers flying IRS assisted Unmanned Aerial Vehicles (UAV) THz network. To that aim, we proposed an algorithm named a (Fly-IRS) aided-THz jointly optimizing optimal user Grouping phase shifting, UAV's...
The emergence of the sixth generation (6G) era has highlighted importance Network Slicing (NS) technology as a promising solution for catering diverse service requests users. With presence large number devices with different and since each goal requirements; efficiently allocating Resource Blocks (RBs) to network slice is challenging task in order meet desired Quality Service (QoS) standards. However, it worth noting that majority research efforts have primarily concentrated on cellular...
Multiple radio access technologies heterogeneous network (multi-RAT HetNet) composed by cellular and WiFi cell base stations (BSs) is considered a promising paradigm for meeting the high traffic demand on mobile networks. In this article, new association algorithm different wireless devices (WDs) having diverse requirements in multi-RAT HetNet proposed. The designed to consider WDs' uplink power consumptions downlink achieved data rate while taking into account proportional fairness among...
The worldwide outbreak due to COVID-19 pandemic has led a great interest in e-learning. However, the lack of suitable online laboratory management systems posed particular challenge for sectors that need activities such as engineering, science and technology. In this paper, requirements design flexible AI-based learning system (LLS) can support experimentations are presented. elicitation LLS is decided based on conducted survey set features. designed with flexibility various types virtual or...
Internet of Things (IoT) -based 6G is expected to revolutionize our world. Various candidate technologies have been proposed meet IoT system requirements based on 6G, symbiotic radio (SR) one these technologies. This paper aims use technology support the passive things and enhance uplink transmission performance. The tag information sent cloud for analysis through a macro base station (MBS) or wireless access point (WAP), where smartphones are used as relay transmit this MBS WAP. In paper,...
Recently, increasing demand for remote laboratories is noticed, due to the shifting of educational systems from face-to-face education online through internet. A Remote-controlled laboratory based on use real instrumentations and components, in which experiments are completely conducted controlled remotely by students Thus, it provides a hands-on learning experience an basis. In order realize this laboratories, efficient management resources should be considered. work, novel system proposed,...
Restrained by the long term evolution (LTE) limited network capacity, WiFi technology is considered as one of promising solutions to leverage traffic load and enhance LTE capacity. Exploiting both licensed unlicensed spectrum was motivated key standardize LTE-wireless local area (WLAN) aggregation (LWA) 3GPP in Release 13. In this paper, we consider user association problem LWA-based Multiple Radio Access Technologies (Multi-RAT) Heterogeneous Networks (HetNet) which three transmission modes...
Due to the COVID-19 pandemic and development of educational technology, e-learning has become essential in process. However, adoption sectors such as engineering, science, technology faces a particular challenge it needs special Laboratory Learning Management System (LLMS) capable supporting online lab activities through virtual controlled remote labs. One most challenging tasks designing LLMS is how assess student's performance while an experiment being conducted stuttering students can be...
Cognitive radio networks improve spectrum utilization by sharing licensed with cognitive devices. In cognitive ad hoc the routing protocol is one of most challenging tasks due to changes in frequency and interrupted connectivity caused primary user activity. this paper, a multipath activity based for network (MACNRP) proposed. The utilizes channel availability creates multiple node-disjoint routes between source destination nodes. proposed compared D 2 CARP FTCRP protocols....
The ubiquitous existence of COVID-19 has required the management congested areas such as workplaces. As a result, use variety inspiring tools to deal with spread been required, including internet things, artificial intelligence (AI), machine learning (ML), and geofencing technologies. In this work, an efficient approach based on ML technology is proposed monitor control density persons in workplaces during working hours. particular, workplace environment divided into number geofences which...
Narrowband Internet of Things (NB-IoT) is introduced by the third generation partnership project (3GPP) as a standardized technology for machine type communication (MTC) in Long Term Evolution (LTE).NB-IoT can satisfy many IoT requirements, Nevertheless, NB-IoT suffers low data rate and network capacity.This paper provides nonorthogonal multiple access (NOMA) scheme based matching game uplink systems to enhance capacity providing more connectivity massive MTC devices.We formulate our...
Online learning has emerged as powerful methods for the transformation from traditional education to open through smart platforms due Covid-19 pandemic. Despite its effectiveness, many studies have indicated necessity of linking online with cognitive styles students. The level students always improves if teaching and educational interventions are appropriate style each student individually. Currently, psychological measures used assess students' styles, but about application in virtual...
The great transformation of e-learning during the Covid-19 pandemic has led to emergence new learning tools and virtual environments through Internet. Despite many advantages e-Learning courseware systems such as availability, flexibility accessibility, students some sectors engineering, science technology are facing several limitations in conducting their practical works remotely online platform for laboratory experiments. specific objective this study was come up with an updated success...
Due to the outbreak of COVID-19, whole world is thinking new mechanisms, preventive measures protect human life from widespread pandemic. Many countries imposed COVID-19 control limit further infection spread. However, controlling spread without taking severe (e.g. lockdown and full quarantine) that have undesirable economic effects becomes a major challenge. By exploiting modern available information communication technologies, innovative solutions may emerge face deal with this crisis. In...
Multiservice cellular in Radio Access Network (RAN) Slicing has recently attained huge interest enhancing isolation and flexibility. However, RAN slicing heterogeneous networks (HetNet) architecture is not adequately explored. This study proposes a pairing-network (NS) approach for that cares about quality of service (QoS), baseband resources, capacities wireless fronthaul backhaul links, isolation. intriguing helps address the increased need mobile network traffic produced by range devices...
The COVID-19 pandemic has made the world focus on providing effective and fair online learning systems. As a consequence, this paper proposed new intelligent, assessment of examinations for virtual remotely controlled laboratory experiments running through Laboratory Learning Systems. main idea is to provide students with an environment similar being physically present in while conducting practical exams detecting cheating high accuracy at minimal cost. Therefore, intelligent module designed...
In Mobile ad-hoc network, nodes must cooperate to achieve the routing purposes.Node misbehaviour due selfish or malicious intention could significantly degrade performance of MANET because most existing protocols in are aiming at finding efficiency path.In this paper, we propose a Two node-disjoint Routes protocol for Isolating Dropper Node (TRIDNT) deal with MANET.TRIDNT allows some degree selfishness give an incentive declare itself its neighbours, which reduce misbehaving searching...
Optimal placement of small cells in integrated LTE/Wi-Fi heterogeneous network architecture is considered one the key approaches that can be used to increase system capacity and enhance coverage meet unexpected explosion mobile data traffic. Co-operation interworking between different Radio Access Technologies (RATs) introduce Aggregation (LWA) which allows traffic aggregation Wi-Fi Point (WAP) LTE cell on level Network (RAN). In this paper, effectiveness optimal deployment wireless nodes a...
Neuraxial blocks is the recommended mode of analgesia and anesthesia in parturients with Coronavirus 19 (COVID-19). There limited data on hemodynamic responses to neuraxial COVID-19 patients. We aim compare positive propensity-matched negative parturients.We conducted retrospective, cross-sectional case-control study changes associated a Tertiary care academic medical center. Fifty-one women confirmed by nasopharyngeal reverse transcription-polymerase chain reaction (RT-PCR), were compared...