Menoufia University, Faculty of Electronic Engineering
Menoufia Journal of Electronic Engineering Research
1687-1189
2682-3535
28
1
2019
01
01
Iris Template Localization over Internet of Things (IoT)
1
18
EN
Ramadan
Gad
Computer Science and Engineering Dept., Faculty of Electronic Engineering, Menoufia
University, Egypt.
Ayman
EL-SAYED
0000-0002-4437-259X
Computer science and Engineering, Faculty of Electronic Engineering, Menoufia University, Menouf 32952, Egypt.
ayman.elsayed@el-eng.menofia.edu.eg
Nawal
EL-Fishawy
Computer Science and Engineering Dept., Faculty of Electronic Engineering, Menoufia
University, Egypt
Mohamed
Zorkany
Electronic and Communication Engineering Dept., National Telecommunication Institute,
Egypt
10.21608/mjeer.2019.62662
Internet of Things (IoT) is growing vastly and survive technology.<br />So; it needs authentication solutions (as iris recognition) to bring<br />safety, and convenience in data and network sharing in the internet<br />of things era. Iris segmentation is most critical stage in the iris<br />recognition system. Some challenges to localize iris such as<br />occlusion by eyelids, eyelashes, and corneal or specular reflection.<br />This paper proposes, a modified algorithm based on masking<br />technique; to localize iris. It solves the limitation of the iris data loss<br />and inconsistencies factors, for capturing conditions and different<br />resolution images. This method gives satisfactory results in factors<br />of accuracy and execution time to be used over IoT. The<br />segmentation success rate is more than 99.545(%), and execution<br />time in worst case 0.758 (sec).The obtained results improve the<br />efficiency of the proposed iris recognition method and improve IoT<br />security and authentication.
Internet of Things (IoT),Iris segmentation,Iris localization,Masking technique
https://mjeer.journals.ekb.eg/article_62662.html
https://mjeer.journals.ekb.eg/article_62662_ccdc49091a605594000df431c7deaea1.pdf
Menoufia University, Faculty of Electronic Engineering
Menoufia Journal of Electronic Engineering Research
1687-1189
2682-3535
28
1
2019
01
01
Modified PDOS-based LQG Controller for Inverted Pendulum
19
44
EN
Mohammad
EL-Hossainy
Department. of Industrial Electronics and Control, Faculty of Electronic Engineering,
Menoufia University
Raafat
Shalaby
Department. of Industrial Electronics and Control, Faculty of Electronic Engineering,
Menoufia University
Belal
Abo-Zalam
Department. of Industrial Electronics and Control, Faculty of Electronic Engineering,
Menoufia University
10.21608/mjeer.2019.62719
This paper deals with the holing issue of inverted pendulum (IP)<br />system. In traditional LQG controller, trying out various Q and R<br />weights are mandatory to achieve the optimum gains of the state<br />feedback controller. This trial-and-error process is time consuming,<br />cumbersome and leads, usually, to a non-optimized response for IP<br />system. ModifiedPrescribed Degree of Stability (PDOS)-basedLQG<br />controller (MLQG) is proposed to stabilize the IP. The proposed<br />Pendulum swing-upwhich is based on total energy shaping is firstly<br />surveyed.MLQG is supported by simulation experiments and is<br />intensively tested and compared to PD and LQG controllers. The<br />simulation results proved the competitiveness and the capability of<br />the proposed schemeto stabilize the IP to a predetermined degree<br />of stability with optimized response.<br />
https://mjeer.journals.ekb.eg/article_62719.html
https://mjeer.journals.ekb.eg/article_62719_d41d8cd98f00b204e9800998ecf8427e.pdf
Menoufia University, Faculty of Electronic Engineering
Menoufia Journal of Electronic Engineering Research
1687-1189
2682-3535
28
1
2019
01
01
Resolution and Quality Enhancement of Images Using Contrast Limit Adaptive Histogram Equalization
45
60
EN
Sahar
Aboshosha
Ministry of Electricity
Osama
Zahran
Electronics and Electrical Communications Department, Faculty of Electronic
Engineering, Menoufia University, Egypt.
Mohamed
El-Kordy
Electronics and Electrical Communications Department, Faculty of Electronic
Engineering, Menoufia University, Egypt.
Moawad
Dessouky
Electronics and Electrical Communications Department, Faculty of Electronic
Engineering, Menoufia University, Egypt.
Fathi
Abd El-Samie
Electronics and Electrical Communications Department, Faculty of Electronic
Engineering, Menoufia University, Egypt.
10.21608/mjeer.2019.62722
In this paper, hybrid approaches for quality enhancement of images<br />compiled from Contrast Limited Adaptive Histogram Equalization<br />(CLAHE) and image interpolation are presented. Adaptive histogram<br />equalization is employed for contrast enhancement, while image<br />interpolation is used for resolution enhancement. Both the CLAHE and<br />image interpolation are used interchangeably to check the most<br />suitable scheme for quality enhancement of images. The utilized<br />interpolation techniques during paper are polynomial-based<br />techniques. Simulation results have proved that the application of<br />CLAHE firstly enhances the image quality in a better way.
Contrast limited adaptive histogram equalization,interpolation,and contrast enhancement
https://mjeer.journals.ekb.eg/article_62722.html
https://mjeer.journals.ekb.eg/article_62722_d41d8cd98f00b204e9800998ecf8427e.pdf
Menoufia University, Faculty of Electronic Engineering
Menoufia Journal of Electronic Engineering Research
1687-1189
2682-3535
28
1
2019
01
01
A DIFFSERV-AWAREFORM OF MULTI-PROTOCOL LABEL SWITCHING TRAFFIC ENGINEERING OVER VIRTUAL PRIVATE NETWORKS
61
84
EN
Ayman
Abdelaal
Dept. of Communication, Faculty of Electronic Engineering, Menoufia University
Fathi
Abdel-Samie
Dept. of Communication, Faculty of Electronic Engineering, Menoufia University
Moawad
Dessouki
Dept. of Communication, Faculty of Electronic Engineering, Menoufia University
10.21608/mjeer.2019.62724
High bandwidth Internet connections and applications demands are<br />growing so rapidly because of the Internet arising usages either on<br />business or entertainment. Adding new links to cover the extra<br />demand is the simplest solution but it always comes with financial<br />issues due to the extra cost it adds. That’s why researchers and<br />leading companies should search for smarter alternatives. Internet<br />Service Providers (ISPs) should improve their networks in<br />perspective of the utilization of the bandwidth and the management<br />of their resources. Two techniques have been introduced separately<br />to support in addressing the bandwidth utilization problems in the<br />ISPs networks, the Multi-Protocol Label Switching – Traffic<br />Engineering (MPLS-TE) and the DiffServ Quality of Service (QoS).In<br />this paper, the two techniques are used together to get the highest<br />performance, the best resources management and an efficient<br />bandwidth utilization. Multiple experiments have been held in<br />different variations using one or more of the Diffserv-aware MPLS<br />TE, Low Latency Queuing (LLQ), Russian Dolls Model (RDM) and<br />Maximum Allocation Model (MAM) model. The best results for both<br />IPv4 and IPv6 were obtained using Diffserv-aware TE in RDM model<br />in conjunction with LLQ.
MPLS-TE,DiffServ-QoS and VPN
https://mjeer.journals.ekb.eg/article_62724.html
https://mjeer.journals.ekb.eg/article_62724_d41d8cd98f00b204e9800998ecf8427e.pdf
Menoufia University, Faculty of Electronic Engineering
Menoufia Journal of Electronic Engineering Research
1687-1189
2682-3535
28
1
2019
01
01
SYN Flood Attack Detection Usiing AR Model
85
92
EN
Rania
Ghazy
Dept. of Electronics and Electrical Communications, Faculty of Electronic
Engineering, Menoufia University.
el-sayed
El-Rabaie
Dept. of Electronics and Electrical Communications, Faculty of Electronic
Engineering, Menoufia University.
Moawad
Dessouky
Dept. of Electronics and Electrical Communications, Faculty of Electronic
Engineering, Menoufia University.
Nawal
El-Fishawy
Computer Science and Eng., Faculty of Electronic Eng., Menoufia University.
Fathi
Abd El-Samie
Dept. of Electronics and Electrical Communications, Faculty of Electronic
Engineering, Menoufia University.
10.21608/mjeer.2019.62725
Due to the sophisticated characteristics of auto-regressive (AR)<br />modeling approach, it finds applications in most anomaly detection<br />processes. This paper extends the concept of AR modeling to<br />create models for the estimated auto-correlation between data and<br />control planes packet counts of the network traffic. These models<br />are fed with the anomaly traffic containing SYN flood attack. The<br />estimated residuals in these scenarios are used as indicators for<br />the attacks. Simulation results revealed the success of attack<br />detection using the proposed approach.
auto-regressive,control planes and network traffic
https://mjeer.journals.ekb.eg/article_62725.html
https://mjeer.journals.ekb.eg/article_62725_3f04b76a933a08f901ee138f2a5b3054.pdf
Menoufia University, Faculty of Electronic Engineering
Menoufia Journal of Electronic Engineering Research
1687-1189
2682-3535
28
1
2019
01
01
Proposed Energy Efficient Multi-Layer MAC Protocoll for Massive MTC over LTE Wireless Network
93
108
EN
Ahmed
Naguib
Department of Electronics and Electrical Communications Engineering
Faculty of Electronic Engineering, Menoufia University, Menouf 32952, Egypt
Waleed
Saad
Department of Electronics and Electrical Communications Engineering
Faculty of Electronic Engineering, Menoufia University, Menouf 32952, Egypt
Mona
Shokair
Department of Electronics and Electrical Communications Engineering
Faculty of Electronic Engineering, Menoufia University, Menouf 32952, Egypt
10.21608/mjeer.2019.62727
Energy efficiency is one of the prime consideration in designing<br />Machine Type Communication (MTC) networks, because of the<br />battery-powered machine nodes. Therefore, extending the network<br />lifetime can be done by using more energy efficient techniques. The<br />dramatically increase in the number of machine nodes in many<br />aspects of our life makes the wireless standards to adopt Machine<br />to Machine (M2M) communication in its new specifications. The<br />massive number of machines need a new MAC protocol that makes<br />full use of the node’s battery, so that node can live longer time. In<br />this paper, a new protocol called Multi-Layer MAC (ML-MAC) will<br />be suggested, and then integrating this protocol into LTE network<br />will be made. Calculations of energy efficiency, delay, and<br />throughput as a performance parameter will be done. Simulation<br />results show that proposed ML-MAC protocol is more energy<br />efficient compared to traditional IEEE 802.11 MAC protocol and<br />Sensor MAC (S-MAC) protocol. Moreover, prolonging the network<br />lifetime can be done by using the new ML-MAC protocol than<br />others.
https://mjeer.journals.ekb.eg/article_62727.html
https://mjeer.journals.ekb.eg/article_62727_9709135bed1b0f630dcfcce52badd831.pdf
Menoufia University, Faculty of Electronic Engineering
Menoufia Journal of Electronic Engineering Research
1687-1189
2682-3535
28
1
2019
01
01
Impact of Small Files on Hadoop Performance: Literature Survey and Open Points
109
120
EN
Tharwat
EL-SAYED
Computer Science & Eng. Dept., Faculty of Electronic Eng.,
Menoufia University, Menouf 32952, Egypt
Mohamed
Badawy
Computer Science & Eng. Dept., Faculty of Electronic Eng.,
Menoufia University, Menouf 32952, Egypt
Ayman
El-Sayed
0000-0002-4437-259X
Computer Science & Eng. Dept., Faculty of Electronic Eng.,
Menoufia University, Menouf 32952, Egypt.
10.21608/mjeer.2019.62728
Hadoop is an open-source framework written by java and used for big<br />data processing. It consists of two main components: Hadoop<br />Distributed File System (HDFS) and MapReduce. HDFS is used to<br />store data while MapReduce is used to distribute and process an<br />application tasks in a distributed processing form. Recently, several<br />researchers employ Hadoop for processing big data. The results<br />indicate that Hadoop performs well with Large Files (files larger than<br />Data Node block size). Nevertheless, Hadoop performance decreases<br />with small files that are less than its block size. This is because, small<br />files consume the memory of both the DataNode and the NameNode,<br />and increases the execution time of the applications (i.e. decreases<br />MapReduce performance). In this paper, the problem of the small files<br />in Hadoop is defined and the existing approaches to solve this problem<br />are classified and discussed. In addition, some open points that must<br />be considered when thinking of a better approach to improve the<br />Hadoop performance when processing the small files.
Hadoop,Big Data,Small Files,Hive,HBase,Amazon EMR,S3DistCp
https://mjeer.journals.ekb.eg/article_62728.html
https://mjeer.journals.ekb.eg/article_62728_c818f3f951476c6005647f9ba7364efd.pdf
Menoufia University, Faculty of Electronic Engineering
Menoufia Journal of Electronic Engineering Research
1687-1189
2682-3535
28
1
2019
01
01
Crosstalk Free Routing Algorithm for High Speed Optical Multistage Interconnection Network
121
136
EN
Abd El-Naser
Mohammed
Electronics and Electrical Communications Engineering Department,
Faculty of Electronic Engineering, Menoufia University, EGYPT.
Ahmed
El-Eraki
Telecommunications Engineering Department, Faculty Engineering,
Egyptian Russian University, EGYPT.
Marwa
Azar
Telecom Egypt Company.
10.21608/mjeer.2019.62746
High speed optical interconnection networks are further more integrated<br />for modern computing systems and parallel computing. Optical multistage<br />interconnection network (OMIN) is a popular dynamic network schemes<br />that are used in switching and communication of high speed optical<br />interconnection network applications. However, OMINs introduce<br />crosstalk which results from coupling two signals within one Switching<br />Element. This paper highlights the breakthroughs in the area of<br />scheduling methods and crosstalk free routing in optical interconnection<br />networks, and proposes new timely conflict free routing algorithms.
https://mjeer.journals.ekb.eg/article_62746.html
https://mjeer.journals.ekb.eg/article_62746_c6795cbc8c582ad1cb12825f30408a1b.pdf
Menoufia University, Faculty of Electronic Engineering
Menoufia Journal of Electronic Engineering Research
1687-1189
2682-3535
28
1
2019
01
01
A Proposed Meta-Heuristic Approach for Cloudlets Scheduling in Cloud Computing Environment
137
158
EN
Aida
Nasr
Dept. of Computer Science and Eng., Faculty of Elect., Eng., Menoufia University.
Nirmeen
El-Bahnasawy
Dept. of Computer Science and Eng., Faculty of Elect., Eng., Menoufia University.
Gamal
Attiya
Dept. of Computer Science and Eng., Faculty of Elect., Eng., Menoufia University.
Ayman
El-Sayed
0000-0002-4437-259X
Dept. of Computer Science and Eng., Faculty of Elect., Eng., Menoufia University.
10.21608/mjeer.2019.62747
This paper presents a new hybrid approach, called ACOSA, for<br />cloudlets scheduling to enhance the scheduler behavior in Cloud<br />computing (CC) environment and to overcome the results<br />oscillation problem of the existing meta-heuristic scheduling<br />algorithms. The proposed approach combines both the Ant<br />Colony Optimization (ACO) and Simulated Annealing (SA)<br />algorithm to improve both quality of solutions and time complexity<br />of the scheduling algorithm. The proposed approach is evaluated<br />by using the well-known CloudSim, and the results are compared<br />with the ant colony and simulated annealing separately in terms of<br />schedule length, load balancing, and time complexity. It<br />decreases the schedule length by 29.75% with SA and 12.25%<br />with ACO. The ACOSA provides higher load balancing degree. It<br />improves the balancing degree ratio by 36.36% than SA and<br />12.13% than ACO algorithms.
https://mjeer.journals.ekb.eg/article_62747.html
https://mjeer.journals.ekb.eg/article_62747_991e9633f0fc39ab7f6db8c7fc431b2f.pdf
Menoufia University, Faculty of Electronic Engineering
Menoufia Journal of Electronic Engineering Research
1687-1189
2682-3535
28
1
2019
01
01
Enhanced Fiilltterr-based SIFT Apprroach fforr Copy-Move Forrgerry Dettecttiion
159
182
EN
Mohamed
Elaskily
Dept. of Informatics, Electronics Research Institute.
Heba
Aslan
Dept. of Informatics, Electronics Research Institute.
Mohamed
Dessouky
Dept. of Computer Science and Engineering, Faculty of Electronic Engineering,
Menoufia University.
Fathi
Abd El-Samie
Dept. of Electronics and Electrical Communications, Faculty of Electronic
Engineering, Menoufia University.
Osama
Faragallah
Dept. of Information Technology, College of Computers and Information
Technology, Taif University
Osama
Elshakankiry
Dept. of Information Technology, College of Computers and Information
Technology, Taif University
10.21608/mjeer.2019.62749
Image forgeries are applied to give the digital images other<br />meanings or to deceive the viewers. Image forgeries appear in<br />many cases such as judges in courts, cybercrimes, military and<br />intelligence deception, or defamation of important characters.<br />There are many different types of image forgeries such as copy<br />move forgery, image retouching, image splicing, image morphing,<br />and image resampling. Copy move forgery is the widest type and<br />easy to apply between all digital image forgeries. Scale Invariant<br />Features Transform (SIFT) algorithm is used strongly to detect<br />copy move forgeries due to its efficiency in digital image analysis.<br />SIFT algorithm is extracting image features, which are invariant to<br />geometrical transformations such as scaling, translation, and<br />rotation. These features are used in performing the matching<br />between different views of a scene or an object. This paper<br />enhances the efficiency of using SIFT algorithm in detecting copy<br />move forgery by two ways. Firstly, it enhances the image itself by<br />applying different types of digital filters to reinforce the image<br />features giving the ability to detect forgeries. Butterworth low-pass<br />filter, a high-pass filter, and the combination of them are applied<br />to this task. Secondly, the matching strategy is adapted based on<br />a new thresholding approach to increase the true positive rate<br />and decrease the false positive rate. Experimental results show<br />that the proposed approach gives better results compared with<br />traditional copy-move detection approaches. In addition, it gives better stability and reliability to different copy-move forgery conditions.
https://mjeer.journals.ekb.eg/article_62749.html
https://mjeer.journals.ekb.eg/article_62749_c4860862fc9227227543cde736c234e6.pdf
Menoufia University, Faculty of Electronic Engineering
Menoufia Journal of Electronic Engineering Research
1687-1189
2682-3535
28
1
2019
01
01
In-Sequence Zeros-Ones Patterns Exploiting Approach for Spatial Modulation Performance Enhancement
183
196
EN
Mohamed
Arafa
Dept. of Electronics and Electrical Communication, Faculty of Electronic Engineering,
Menoufia University, Menouf, 32952, Egypt.
Mohamed
Elwekeil
Dept. of Electronics and Electrical Communication, Faculty of Electronic Engineering,
Menoufia University, Menouf, 32952, Egypt.
Moawad
Dessouky
Dept. of Electronics and Electrical Communication, Faculty of Electronic Engineering,
Menoufia University, Menouf, 32952, Egypt.
10.21608/mjeer.2019.62751
This paper presents a proposed approach for enhancing both the<br />spectral efficiency of spatial modulation and symbol error rate. The<br />main idea is to exploiting repeated long zeros and ones sequences<br />in the transmitted data, and mapping them into the signal<br />constellation of Three Dimension (3-D) spatial constellation of<br />spatial modulation. The obtained results indicate that the symbol<br />error rate (SER) performance of the proposed algorithm is better as<br />compared to traditional spatial modulation (SM), at a certain<br />number of modulated-symbol selecting bits. The performance<br />enhancement is affirmed by Monte Carlo simulations that show a<br />significant improvement in SER in favor of the proposed approach<br />compared to traditional SM. In addition, the proposed approach<br />provides more improvement of SER performance, especially, when<br />the number of receiving antennas is increased. Furthermore, it<br />provides an improvement of spectral efficiency as compared to<br />traditional spatial modulation.
https://mjeer.journals.ekb.eg/article_62751.html
https://mjeer.journals.ekb.eg/article_62751_b753fe2b446770fed17a769a474b8469.pdf
Menoufia University, Faculty of Electronic Engineering
Menoufia Journal of Electronic Engineering Research
1687-1189
2682-3535
28
1
2019
01
01
Applying the Linear Spectral Estimation Techniques for both DNA Sequence Analysis and Exon Region Prediction
197
216
EN
Ahmed
Dessouky
Al Alson Academy, Cairo, Egypt
Ashraf
Eltholth
NTI, Cairo, Egypt
Taha
E.
Taha
Faculty of Electronic Engineering, Menouf, Egypt.
Fathi
Abd El-samie
Faculty of Electronic Engineering, Menouf, Egypt.
10.21608/mjeer.2019.62752
Bioinformatics means the analysis of biological information using<br />computers and statistical techniques. This paper presents the linear<br />spectral estimation techniques based on DFT that applied for the<br />analysis of deoxyribonucleic acid (DNA) sequence. These methods<br />are useful frequency domain presentation techniques which<br />improve the analysis of DNA sequence. The representation of DNA<br />sequence in frequency domain is useful to extract some desirable<br />information which cannot be extracted from the time domain<br />analysis of that sequence. In addition, this paper investigates the<br />location of exon in DNA sequences using linear spectral estimation<br />techniques for gene prediction in DNA sequences in exon. A<br />comparison study between all these linear spectral estimation<br />techniques is performed.
https://mjeer.journals.ekb.eg/article_62752.html
https://mjeer.journals.ekb.eg/article_62752_d41d8cd98f00b204e9800998ecf8427e.pdf
Menoufia University, Faculty of Electronic Engineering
Menoufia Journal of Electronic Engineering Research
1687-1189
2682-3535
28
1
2019
01
01
All Optical Switching Logic Gates Based on Nonlinear Semiconductor Optical Amplifiers Effects
217
236
EN
Ahmed
Rashed
Electronics and Electrical Communications Engineering Department
Faculty of Electronic Engineering, Menoufia University, Egypt.
Abd El-Naser
Mohamed
Electronics and Electrical Communications Engineering Department
Faculty of Electronic Engineering, Menoufia University, Egypt.
Mohamed
Tabbour
Electronics and Electrical Communications Engineering Department
Faculty of Electronic Engineering, Menoufia University, Egypt.
Naira
Saad
Electronics and Electrical Communications Engineering Department
Faculty of Electronic Engineering, Menoufia University, Egypt.
10.21608/mjeer.2019.62754
This paper studies the problem of data access at the receiver with<br />large bit error rate and low quality factor. Due to this issue the<br />information got inaccurately at the receiver side, the data should<br />have high quality factor and low bit error rate to be simple of<br />identification at the receiver when using the gates. The nonlinear<br />properties of the semiconductor optical amplifier (SOA) are utilized<br />to accomplish the Boolean variable based math work, in which<br />AND, NAND, and OR gates potentially used to endorse the<br />Boolean function. Through blend this gates together any Boolean<br />function can be accomplished and utilized to perform optical signal<br />processing. The quality factor and BER are measured by utilizing<br />the eye diagram analyzer, the state of the output bit and also<br />shaped by the oscilloscope visualizer in Optiwave simulation<br />program. These models can be used for wavelength converter,<br />header recognition, parity checking, binary addition, packet-header<br />modification, encoding and encryption with pattern matching, and<br />data encryption with high speed and high quality factor.
optical switching,AND gate,NAND gate,and OR gate,Semiconductor optical amplifier (SOA),optical nonlinearity
https://mjeer.journals.ekb.eg/article_62754.html
https://mjeer.journals.ekb.eg/article_62754_d41d8cd98f00b204e9800998ecf8427e.pdf
Menoufia University, Faculty of Electronic Engineering
Menoufia Journal of Electronic Engineering Research
1687-1189
2682-3535
28
1
2019
01
01
An Enhanced Grroup Key Managementt Scheme for MANET
237
274
EN
Ola
Younis
Dept. of Computer Science and Engineering, Faculty of Electronic Engineering,
Menofia University
Salah
Essa
Dept. of Computer Science and Engineering, Faculty of Electronic Engineering,
Menofia University
Ayman
El-Sayed
0000-0002-4437-259X
Dept. of Computer Science and Engineering, Faculty of Electronic Engineering,
Menofia University
10.21608/mjeer.2019.62755
The basic motivation behind this paper is to demonstrate a<br />solution for a group key management. The real concern is to<br />provide security issues in such framework, and how to deal with<br />the cryptographic keys that are required. To design functional and<br />adequate key management frameworks, it is important to<br />recognize attributes of the mobile ad hoc network and why<br />traditional key management frameworks can't be utilized. The<br />purpose of the key management is to give secure ways to handle<br />the cryptographic keying generation, distribution, and the key<br />maintenance. In this paper, we propose an effective key<br />management technique, called a Transition Key Management<br />Scheme (TKMS), for a mobile ad hoc network that is based on nparties<br />Diffie Hellman protocol. Using transient keys is to oversee<br />temporally members who recently joined the network group.<br />TKMS expects to minimize the key management overhead in the<br />network because of highly dynamic sessions of membership<br />comparing with the other techniques.
https://mjeer.journals.ekb.eg/article_62755.html
https://mjeer.journals.ekb.eg/article_62755_d41d8cd98f00b204e9800998ecf8427e.pdf
Menoufia University, Faculty of Electronic Engineering
Menoufia Journal of Electronic Engineering Research
1687-1189
2682-3535
28
1
2019
01
01
Numerical solution of singular Fredholm integral equations of the first kind using Newton interpolation
275
288
EN
Email
Shoukralla
Dept. of Physics and Engineering Mathematics, Faculty of Engineering and
Technology, Future University.
W.
Elganaini
Dept. of Physics and Engineering Mathematics, Faculty of Electronic
Engineering, Menoufia University.
M.
Markos
Dept. of Physics and Engineering Mathematics, Faculty of Electronic
Engineering, Menoufia University.
10.21608/mjeer.2019.62756
In this paper a computational technique is presented for the<br />numerical solution of a certain potential-type singular Fredholm<br />integral equation of the first kind with singular unknown density<br />function, and a weakly singular logarithmic kernel. This equation is<br />equivalent to the solution of the Dirichlet boundary value problem<br />for Laplace equation for an open contour in the plane. The<br />parameterization of the open contour facilitates the treatment of the<br />density function’s singularity in the neighborhood of the end-points<br />of the contour, and the kernel’s singularity. The unknown density<br />function is replaced by a product of two functions; the first explicitly<br />expresses the bad behavior of the density function, while the<br />second is a regular unknown function, which will be interpolated<br />using Newton interpolation in a matrix form. The singularity of the<br />parameterized kernel is treated by expanding the two argument<br />parametric functions into Taylor polynomial of the first degree about<br />the singular parameter. Moreover, two asymptote formulas are<br />used for the approximation of the kernel. In addition, an adaptive<br />Gauss–Legendre formula, is applied for the computations of the<br />obtained convergent integrals. Thus the required numerical solution<br />is found to be equivalent to the solution of a system of algebraic<br />equations. The numerical solution of the illustrated example is<br />closer to the exact solution; which ensures the high accuracy of the<br />presented computational technique.
Electro-optics,electromagnetism,Fredholm integral equations,well-posed,singular,logarithmic kernel
https://mjeer.journals.ekb.eg/article_62756.html
https://mjeer.journals.ekb.eg/article_62756_a27b14c54735f351f9b72788601fc0ca.pdf
Menoufia University, Faculty of Electronic Engineering
Menoufia Journal of Electronic Engineering Research
1687-1189
2682-3535
28
1
2019
01
01
An In-depth Survey of Visible Light Communication Modulating and Coding schemes for Diming/Flicker Avoidance Technollogies
289
312
EN
Christena
Ghandour
Giza Institute of Engineering and Technology, Giza, Egypt.
Abdel Halim
Zekry
Faculty of Engineer, Ain Shams University, Cairo, Egypt
Nazmi
Mohammed
New Cairo Academy for Science and Arts, New Cairo, Egypt
Sayed
El-Rabaie
Faculty of Electronic Engineering, Menoufia University, Menouf, Egypt,
10.21608/mjeer.2019.62757
Visible light communication (VLC) is considered as a promising<br />technique for the wireless technology of the 21st century. Utilizing<br />Light Emitting Diode (LED) technology adds a wide area of<br />applications for VLC. Most important one is that VLC can provide<br />illumination/communication jointly. To achieve efficient<br />commercial VLC communication/illumination system one needs<br />to profit from dimming schemes/flicker. Availability of suitable<br />system designs and enhancing system's power requirements are<br />key advantages for using dimming schemes. Effective dimming<br />schemes/flicker are mainly achieved through several VLC based<br />on modulation techniques. In last few years many kinds of<br />literature discussed independently wide range of modulation<br />schemes to address the effectively previous issue. However, few<br />surveys for these works are presented in the field. This paper<br />provides an in-depth survey of VLC based dimming scheme.<br />Therefore, the kinds of modulation and coding techniques are<br />collected and categorized of more than 60 papers extending from<br />pioneering papers to the state of the art in the field. In addition,<br />research and current issues are discussed especially in which<br />trends in VLC based dimming/flicker.
Visible Light Communication (VLC),Light-Emitting Diode (LED),photodiode (PD)
https://mjeer.journals.ekb.eg/article_62757.html
https://mjeer.journals.ekb.eg/article_62757_8982d425ddf0d96b19759e6049241f75.pdf
Menoufia University, Faculty of Electronic Engineering
Menoufia Journal of Electronic Engineering Research
1687-1189
2682-3535
28
1
2019
01
01
Network Availability of Hybrid FSO/mmW 5G Fronthaul Network in C-RAN Architecture
313
329
EN
Mahmoud
Hasabelnaby
Faculty of Elect., Eng., Menoufia University
Hossam
Selmy
National Institute of Laser Enhanced Sciences. Cairo University
Moawad
Dessouky
Faculty of Elect., Eng., Menoufia University
10.21608/mjeer.2019.62758
New innovation approach called -centralized radio access network<br />(Cloud-RAN or C-RAN) - architecture is developed to meet the<br />explosive growth in mobile traffic in the 5th generation (5G) mobile<br />networks especially in the need of high-speed, high capacity, realtime<br />data, and high-reliability. In C-RAN architecture, fronthaul<br />networks connect between the radio units called -Remote Radio<br />Heads (RRHs)- and the processing unit called -Base Band<br />Processing Unit (BBU)-. Recently, hybrid free space optics (FSO)<br />and millimeter waves (mmW) network is considered to be a<br />promising solution that can match with the requirements of 5G<br />fronthaul networks. In this paper, hybrid FSO/mmW links at each<br />RRH is proposed to enhance the performance of C-RAN fronthaul<br />network at various weather conditions. The performance of hybrid<br />FSO/mmW technology as a fronthaul network is evaluated at<br />different weather conditions and compared to other technologies.<br />The numerical results reveal that improvements are obtained in<br />network reliability using hybrid FSO/mmW fronthaul network,<br />especially at severe weather conditions.
https://mjeer.journals.ekb.eg/article_62758.html
https://mjeer.journals.ekb.eg/article_62758_d35ec228b91b5a7b421edd511c973052.pdf