Ghadah Aldabbagh

Ghadah Aldabbagh
Massachusetts Institute of Technology | MIT · Department of Mechanical Engineering

PhD Degree in Communication Systems Engineering

About

84
Publications
35,445
Reads
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630
Citations
Citations since 2016
54 Research Items
556 Citations
2016201720182019202020212022020406080100
2016201720182019202020212022020406080100
2016201720182019202020212022020406080100
2016201720182019202020212022020406080100
Additional affiliations
June 2016 - present
King Abdulaziz University
Position
  • Professor (Associate)
March 2016 - February 2017
Massachusetts Institute of Technology
Position
  • PostDoc Position
June 1992 - June 2016
King Abdulaziz University
Position
  • Professor (Assistant)
Education
January 2001 - February 2011
University College London
Field of study
  • Communications Systems Engineering
August 1989 - July 1999
University College London
Field of study
  • Data Communication Networks & Distributed Systems
September 1985 - July 1990
University of Illinois, Urbana-Champaign
Field of study
  • Computer Science

Publications

Publications (84)
Article
Full-text available
Featured Application: Machine learning is becoming one of the major platforms for advances in all fields of dentistry. Their further exploration in automating the diagnostic process is of great importance to the field. The aim of this study is to assess the effectiveness of machine learning (ML) in assessing the diagnostic quality of bitewing (BW)...
Article
Full-text available
In recent years, various applications have emerged requiring linear topologies of wireless sensor networks (WSN). Such topologies are used in pipeline (water/oil/gas) monitoring systems. The linear structure has a significant impact on network performance in terms of delay, throughput, and power consumption. Regarding communication efficiency, rout...
Article
Full-text available
We are currently experiencing a revolution in data production and artificial intelligence (AI) applications. Data are produced much faster than they can be consumed. Thus, there is an urgent need to develop AI algorithms for all aspects of modern life. Furthermore, the medical field is a fertile field in which to apply AI techniques. Breast cancer...
Article
Pipelines have been an important means of oil transport in recent years, especially in Saudi Arabia. Since oil pipelines have extensive length, tracking them is a critical task. Therefore, monitoring pipeline leaks has become a significant field of intelligent sensing systems. There are many challenges when monitoring long-distance pipelines, requi...
Article
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The paper will focus on the reliability and security challenges in mobile IoT network architectures and will highlight their effects in related vehicular use cases. It will then present representative solutions based on secure routing, blockchain trust management and secure edge cloud processing, along with their tradeoffs.
Article
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In this paper, the aim is to develop a solution to help the breast cancer initiatives in achieving their goal in Saudi Arabia by building a system using a Natural Language processor (NLP) for processing mammogram reports to organize and structure the collected information and identify particular abnormalities. The proposed system can speed up the d...
Preprint
Full-text available
This paper introduces an efficient method for communication resource use in dense wireless areas where all nodes must communicate with a common destination node. The proposed method groups nodes based on their \newt{distance from the destination} and creates a structured multi-hop configuration in which each group can relay its neighbor's data. \ne...
Article
Full-text available
Seismic exploration involves estimating the properties of the Earth's subsurface from reflected seismic waves then visualizing the resulting seismic data and its attributes. These data and derived seismic attributes provide complementary information and reduce the amount of time and effort for the geoscientist. Multiple conventional methods to comb...
Article
Full-text available
The phenomenon of phishing has now been a common threat, since many individuals and webpages have been observed to be attacked by phishers. The common purpose of phishing activities is to obtain user’s personal information for illegitimate usage. Considering the growing intensity of the issue, this study is aimed at developing a new hybrid rule-bas...
Article
Full-text available
The development of the Internet of Things (IoT) expands to an ultra-large-scale, which provides numerous services across different domains and environments. The use of middleware eases application development by providing the necessary functional capability. This paper presents a new form of middleware for controlling smart devices installed in an...
Article
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The utilization of mobile learning continues to rise and has attracted many organizations, university environments and institutions of higher education all over the world. The cloud storage system consists of several defense issues since data security and privacy have become known as the foremost apprehension for the users. Uploading and storing sp...
Article
Full-text available
This paper focuses on the study of IoT network deployments, in both unlicensed and licensed bands, considering LoRaWAN and NB-IoT standards, respectively. The objective is to develop a comprehensive and detailed network planning and coverage dimensioning methodology for assessing key metrics related to the achieved throughput and capacity for speci...
Article
Full-text available
The term “mobile learning” (or “m-learning”) refers to using handheld phones to learn and wireless computing as a learning tool and connectivity technology. This paper presents and explores the latest mobile platform for teaching and studying programming basics.The M-Learning tool was created using a platform-independent approach to target the larg...
Article
Full-text available
Bluetooth is a widespread wireless technology standard for limited wireless networks that permits Bluetooth devices to create a one-hop (piconet) or multi-hop (scatternet) network. During data transmission, a large number of links passing through a single master or bridge device may create congestion problems in a Bluetooth network. Therefore, rout...
Article
Full-text available
Smart grid is a fully-automated, bi-directional, power transmission network based on the physical grid system, which combines sensor measurement, computer, information communication, and automatic control technology. Blockchain technology, with its security features, can be integrated with Smart Grids to provide secure and efficient power managemen...
Article
Full-text available
Seismic images are data collected by sending seismic waves to the earth subsurface, recording the reflection and providing subsurface structural information. Seismic attributes are quantities derived from seismic data and provide complementary information. Enhancing seismic images by fusing them with seismic attributes will improve the subsurface v...
Article
Full-text available
The paper focuses on Device-to-device (D2D) Architectures evaluation frameworks. D2D communication and discovery can improve spectrum usage efficiency and optimize the tradeoffs between throughput and energy consumption. The target operation modes involve both indirect communication between two nodes via a base station or the direct communication a...
Article
Full-text available
There is a significant development in computer-aided detection (CADe) and computer-aided diagnostic (CADx) systems in recent years. This development coincides with the evolution of computing power and the growth of data. The CAD systems support detections and diagnosis of significant diseases, including cancer. Breast cancer is one of the most prev...
Article
Full-text available
Widespread development of system software, the process of learning, and the excellence in profession of teaching are the formidable challenges faced by the learning behavior prediction system. The learning styles of teachers have different kinds of content designs to enhance their learning. In this learning environment, teachers can work together w...
Article
Full-text available
The proposed work will address the capacity problem in the cellular network as the exponential data traffic growth cannot be satisfied anymore with traditional ways by building new base stations or leasing new spectrum bands, which is costly from the operators' point of view. There is growing interest from the operators' side in enhancing the capac...
Article
Full-text available
The paper focuses on using ICT tools for smart home applications. It presents the design and implementation of a system to monitor and analyze the energy consumption, utilize lights when needed, program the temperature by identifying inhabitants' absence and setting the temperature appropriately high or low. The system also uses colored LEDs to ale...
Article
Full-text available
In very crowded areas, a large number of LTE users contained in a single cell will try to access services at the same time causing high load on the Base Station (BS). Some users may be blocked from getting their requested services due to this high load. Using a two-hop relay architecture will help reduce the load from the BS and enhance the capacit...
Article
Full-text available
In dense indoor areas, high numbers of people use their smartphones and tablets to share or download pictures, videos, or data. The heterogeneous network (HetNet) solves the problems caused by the explosion of data generated by smartphones and tablets. Heterogeneous networks use a mix of Relay, Femtocell, Pico, and Macro base stations to improve sp...
Article
Full-text available
Through there is an increasing demand for mobile broadband, especially in densely populated areas where there is are lack of cellular spectrum resources, to take more efficient approaches and to take advantage of unused white-spaces are essential. Long Term Evolution (LTE) continues to evolve with higher data rates and improved services, even for t...
Article
Full-text available
Wireless Ad Hoc networking is a developing new field in technology; that is widely spread in a variety of civil and military applications. Ad Hoc network means a group of mobile terminals connected together wirelessly, and free to move in a bounded area. The battery life of those terminals is limited, therefore the energy efficiency of mobile termi...
Article
Full-text available
In very crowded areas, a large number of LTE users contained in a single cell will try to access services at the same time causing high load on the Base Station (BS). Some users may be blocked from getting their requested services due to this high load. Using a two-hop relay architecture can help in increasing the system capacity, increasing covera...
Article
Full-text available
Nodes' clustering in wireless networks is one of the solutions that used to improve network performance. This paper discusses the clustering in wireless networks. Then it presents a novel clustering algorithm named Pragmatic Genetic Algorithm (PGA). It combines two of the well known artificial intelligence techniques: K-means and Genetic algorithm....
Article
Full-text available
Densification is one of the 5G networks solutions to increase data rate and network capacity. This technology aims for constructing a large number of small cells in a specific area which may include different wireless technologies (LTE, IEEE 802.11, WiMAX, etc.). Small cells provide shorter distance between the cell access point and the mobile node...
Article
Full-text available
The paper focuses on using ICT tools to assist orthodontists in improving the accuracy of wired bracket placement for a reduced chair-time. The critical step during the installation of wired braces is bracket placement, as it delivers the force that will move the teeth once attached to the arch-wire. Many tools have been invented through past years...
Article
Femto Access Points (FAP) and Device-to-Device (D2D) communications have recently been considered as potential candidates for 5G network densification and cell-edge performance. Mobility and handover management is a major issue in heterogeneous networks (HetNet) offering different access technologies. Recently, many Fuzzy and Multi-Attribute Decisi...
Conference Paper
Full-text available
Mobile networks are facing the growing flood of Internet data, as stated by Cisco. Indeed, the traffic from smart phones is expected to grow from 92 percent to 99 percent by 2021. Therefore, new solutions must be conceived by vendors and mobile operators to reduce network congestion with a low cost to preserve customers. This issue is even more cri...
Article
Full-text available
Sophisticated educational technologies are evolving rapidly, and online courses are becoming more easily available, generating interest in innovating lightweight data-driven adaptive approaches that foster responsive teaching and improving the overall learning experience. However, in most existing adaptive educational systems, the black-box modelin...
Article
Full-text available
The mobile technology starting from telephone calls to internet access has become essential part of our life. Therefore, the cellular industry is a very competitive market in the whole world. According to the development of 4G mobile wireless standards and the need of supply the best services to the lowest possible cost, operators wish to know how...
Article
Full-text available
With the rapid growth of mobile data, more than 70 percent of this data traffic expected to generate from indoor environments as statistics show. Almost all our houses and offices have poor coverage. Operators of mobile networks need cost-effective solutions to innovate an accurate indoor coverage with high capacity. Data explosion caused by smartp...
Conference Paper
Full-text available
The progress achieved in the development of Terahertz technologies resulted in promising applications in the fields of medicine and biology. Of particular interest is the development of new technologies that enable the identification of concealed prohibited drugs. This paper investigates the utilization of Terahertz spectroscopy and imaging for the...
Conference Paper
Full-text available
Recent years have witnessed rapid growth in medical applications based on wearable devices and sensors, which is attributed mainly due to the progress in wireless technologies and antennas. As the mobility and compactness of medical devices are becoming more demanding, wearable wireless sensors and antennas become an important candidate with their...
Article
Full-text available
LTE usage is rapidly increasing with the increased demand for high data rate services. LTE cells with high load would be insufficient to handle all users’ traffic. This may cause blocking for some users or degrade the quality for others. Several techniques are adopted to increase the capacity of LTE cells. This paper will address specifically the u...
Article
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E-learning platforms facilitate the interaction between students and instructors while mitigating temporal or spatial constraints. Nevertheless, such platforms require measuring the degree of students' engagement with the delivered course content and teaching style. Such information is highly valuable for evaluating the quality of the teaching and...
Article
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Nodes in a multi-hop wireless network rely on each other to maintain network connectivity. A pri- mary design objective of these networks is to eliminate or minimize the unavailability of network at some point. However, the movement of nodes creates service disruption and delay as path failure detection and re-establishment consume considerable amo...
Article
Full-text available
The adaptive educational systems within e-learning platforms are built in response to the fact that the learning process is different for each and every learner. In order to provide adaptive e-learning services and study materials that are tailor-made for adaptive learning, this type of educational approach seeks to combine the ability to comprehen...
Article
Full-text available
The exponential data traffic growth cannot be satisfied anymore with traditional ways by building new Base Stations (BS) or leasing new spectrum bands, which is costly from the operator’s point of view. In order to accommodate with this high data proliferation, the Third Generation Partner Ship Project (3GPP) has introduced Long Term Evolution (LTE...
Conference Paper
Full-text available
The exponential data traffic growth cannot be satisfied anymore with traditional ways by building new Base Stations (BS) or leasing new spectrum bands, which is costly from the operator's point of view. In order to accommodate with this high data proliferation, the Third Generation Partner Ship Project (3GPP) has introduced Long Term Evolution (LTE...
Article
Nowadays, the popularity of smart phones creates huge capacity requirements for networks during mass events where thousands of people coexist in specific areas. At such events, large numbers of people use their smartphones to share pictures and download information. This behavior creates traffic profiles that differ from those typically observed in...
Article
Full-text available
Through there is an increasing demand for mobile broadband, especially in densely populated areas where there is are lack of cellular spectrum resources, to take more efficient approaches and to take advantage of unused white-spaces are essential. Long Term Evolution (LTE) continues to evolve with higher data rates and improved services, even for t...
Conference Paper
Full-text available
With the increasing demand on data rate in 5G mobile networks, the deployment of small cells such as Femto Access Points (FAP) and device-device (D2D) communications in parallel with macro-cells have been adopted as key technologies for improving spectral efficiency to support the vision of 1000x capacity in 5G systems. One major challenge in the f...
Article
Technological advancements within the educational sector and online learning promoted portable data-based adaptive techniques to influence the developments within transformative learning and enhancing the learning experience. However, many common adaptive educational systems tend to focus on adopting learning content that revolves around pre-black...
Article
Full-text available
This paper examines the performance gain that can be obtained by creating a clustered configuration of nodes in densely populated areas. A single node within each cluster is designated as the hotspot, and all the other nodes communicate with the destination node such as a cellular base-station through the hotspots. A semi-distributed algorithm, ref...
Conference Paper
The number of cluster heads (CH) has significant effects on the way in which the network performs, the connectivity it achieves, and the constricting cost. Hence, the selection of a suitable number of cluster head nodes represents a form of an optimization problem. The cross-layer optimization technique is considered in this paper, to select the be...
Conference Paper
Full-text available
with the rapid growth of mobile data, more than 70 percent of this data traffic expected to generate from indoor environments as statistics show. Almost all our houses and offices have poor coverage. Operators of mobile networks need cost-effective solutions to innovate an accurate indoor coverage with high capacity. Data explosion caused by smartp...
Article
Full-text available
Due to the highly mobile nature of VANET, especially on highways, a reliable and fast penetration of emergency messages is required so that in-time decisions can be performed. A broadcast routing protocol can perform flooding in sparse network but it will suffer from high control overhead, higher delay and lower packet delivery ratio in dense envir...
Conference Paper
Full-text available
Through there is an increasing demand for mobile broadband, especially in densely populated areas where there is are lack of cellular spectrum resources, to take more efficient approaches and to take advantage of unused white-spaces are essential. Long Term Evolution (LTE) continues to evolve with higher data rates and improved services, even for t...
Conference Paper
Full-text available
"Anywhere" and "anytime" are the ultimate properties of wireless communications. To achieve these goals, frequency reuse is one of the most important concepts that has to be considered in high user density networks providing various broadband services. This paper proposes an efficient resource allocation algorithm called Group Based Graph Coloring...