Abdelwahab Fawzy

Abdelwahab Fawzy
National University of Singapore | NUS · Department of Electrical & Computer Engineering

Research Assistant & PhD student

About

11
Publications
31,284
Reads
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83
Citations
Introduction
Abd Elwahab Fawzy has received the B.Sc. (Hons) and M.Sc. degrees in Electronics and Electrical Communication Engineering from the Faculty of Electronic Engineering, Menoufia University, Egypt, in 2013 and 2017, respectively. Currently, he is an assistant lecturer in the Department of Electronics and Electrical Communications of the same faculty. His major research interests include Mobile Communications, Sensor Networks, and Network Security.
Additional affiliations
November 2013 - present
Menoufia University
Position
  • Research Assistant
Education
July 2008 - July 2017
Menoufia University
Field of study
  • Electronics and Electrical Communications

Publications

Publications (11)
Article
Full-text available
Due to their vast prospective applications, researchers pay a great attention to Wireless Sensors Networks (WSNs) in the recent years. One of the most constraints related to sensor nodes is the small sized and portable battery integrated into the node itself. From the practical and economical point of view, it is risky, inefficient and infeasible o...
Conference Paper
There has been a strong interest in using deep neural networks (DNNs) for modeling the power amplifier (PA) non-linearity and designing the digital pre-distortion (DPD) circuit. Most DNNs only accept real-valued inputs since the baseband signal has in-phase and quadrature (I/Q) components. As a result, their entire structures can be highly complex....
Conference Paper
A practical power amplifier (PA) has nonlinear characteristics that distort the output signal and hence increase the transmission error. Digital pre-distortion (DPD) has been widely accepted to compensate for the PA nonlinearity. However, in direct-conversion transmitters (DCTs), DPD performance is affected by in-phase and quadrature (IQ) imbalance...
Article
Full-text available
Employing multi-hop transmission (MH) in wireless sensor networks achieves the uniform distribution of energy cost between nodes. However, the minimum energy cost isn’t completely guaranteed. Therefore, in several cases, the total energy cost might be greater than direct transmission (DT). In this paper, we are interested in determining the factors...
Article
Full-text available
Clustering based routing protocols have a pivotal role in wireless sensor networks (WSN) due to efficient energy consumption of limited power sensor node that is the prime challenge in WSN. Intra-cluster transmission and cluster size have great impact on balancing energy consumption within cluster and network. However, they play minor role in tradi...
Article
Full-text available
In Wireless Sensor Networks (WSNs), the power resources of the nodes are significantly restricted. Hence, a special treatment for their available energy is deeply required. In long distance transmissions, Multi-Hop (MH) techniques are preferred as they minimize the amount of energy cost consumed by each node along the path. No doubt that finding th...
Thesis
Full-text available
Machine Type Communication (MTC) or Machine-To-Machine (M2M) is new communication technology whereby a large number of “intelligent devices” can autonomously communicate with each other wired or wireless and make collaborative decisions without direct human intervention. These smart devices can be computers, embedded processors, smart sensors, actu...
Article
Full-text available
A Ab bs st tr ra ac ct t Cluster based routing protocols have a vital role in Wireless Sensor Networks (WSNs) owing to efficient energy exhaustion of constrained power sensor node that is the main challenge in WSN. Cluster heads (CHs) distribution has great impact on upgrading the profit of energy and improving the network life timein Cluster-Based...
Conference Paper
Full-text available
In Wireless Sensor Networks (WSNs), hierarchical clustering protocols such as Low Energy Adaptive Clustering Hierarchy (LEACH) are more energy efficient than flat routing protocols. Due to the random selection of Cluster Heads (CHs), LEACH has some deficiencies. Either centralized approaches of clustering such LEACH-Centralized (LEACH-C) and Base-S...
Conference Paper
Full-text available
In wireless sensor networks (WSNs), efficient use of the nodes' available energy is the main goal which most of the routing protocols seek to achieve. In fact, clustering based routing protocols have gained vast approval due to its merit of less energy exhaustion. The expended energy by one cluster is divided into two main terms, namely, the expend...
Article
Background: Wireless Sensor Network (WSN) consists of a set of nodes that collect information from a given area, then cooperate with each other to send it to the Base Station (BS). Since the power resources of the nodes are restricted, a special treatment for their available power is mightily required. In MH routing algorithms, finding the optimal...

Questions

Questions (33)
Question
is there any software that helps you to handle the papers you have already read like a tree. just open it by click. and you can add notation beside each paper
Question
How can I use the IIR filter to simulate the memory effect of HPA . any recommendations about the specifications of this filter (numerator and denominator)?
Question
If I have a channel with the following taps ht = [0.2 0.9 0.3], how can I get the impulse response vector of the channel (g) to get Rgg the I estimate the frequency response H using MMSE
Question
If I use object in MATLAB to simulate Rayleigh fading channel, how can I get the channel response vector ?
Question
what the difference between single path Rayleigh fading ? and why it is commonly used in references to approach the theoretical BER in OFDM?
Question
I have python code for DNN consists of of input layer-3 hidden layers-output layer . The numbers of neurons in each layers are 256, 500, 250, 120, 16, respectively. I run it on my laptop from 10 hours ago, and it is still working till now. what is the normal execution time for the python code?
Question
First of all Nice work, I wanna ask about the types of hidden layers have been used? are they ConvD?
Question
The neural network can be described as follow,
y = f (x ; θ)
where,
x input
y output
θ the parameters that best describe the function by minimizing some loss function L (y ; y ̂)
y ̂ the estimated output
Question
In mmWaves electromagnetic channels (≥30GHz), the channel models might be known, but they are too complex and/or change too fast to estimate with reasonable accuracy ?
why the channel models changes too fast ?
Question
In Wireless Communication Networks, what is meant by End to End System Design ?
Question
In wireless Communication, what is the deference between the two terms;
1- Channel Estimation
2- Detection/ Decision making
Question
State Parseval’s theorem and, from the time-frequency duality perspective, explain why it is intuitively reasonable.
Question
what us the Simulation tool required to evaluate the performance of Fifth Generation (5G) Internet of Things (IoT) ?
Question
Internet of Things (IoT) in 5G Wireless Communications
What are the future trends in research to reduce the end to end delay and improve coverage of 5G? This, of course, would be important for many applications related to IoT.

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Projects

Project (1)
Project
Implementation of smart and complex sensors which can be used to measure a lot of physical quantities. Moreover, the measured data combined with positioning information can be processed and then, transmitted to other sensors ot to a centralized node (base station). There are two types of communication in the proposed network. Bluetooth can provide the short range data communication. On the other hand, data communication over long distances can be sopported using a GSM network.