Optimization of DCF Position for the Compensation of Chromatic Dispersion in High Speed Optical Links
Walid S.
El-Deeb
Department of Electronics and Communication Engineering, Faculty of Engineering,
Zagazig University, Zagazig, P.O Box 4451, Egypt.
author
text
article
2017
eng
Optical fiber is responsible for telecommunication revolution today due to its unlimited bandwidth, its ability to transmit the signal for long distance without any repeater and it is more secure than other transmission mediums. It can also support a ring and mesh topologies protection to protect the transferred data. There are many problems that face the data transmitted through optical fiber. Chromatic dispersion (CD) is one of these problems that affects the signal quality and limits the bandwidth. This paper introduces the technique of dispersion compensation fiber (DCF) to improve the signal quality and reduce the bit error rate (BER) in the high-speed optical links. Three different positions (pre-compensation, post-compensation and mixcompensation) for DCF are studied in this paper in terms of bit error rate and quality factor (Q-Factor). The simulation is performed for channel with single wavelength and dense wavelength division multiplexing (DWDM) with multiple wavelengths.
Menoufia Journal of Electronic Engineering Research
Menoufia University, Faculty of Electronic Engineering
1687-1189
26
v.
2
no.
2017
293
305
https://mjeer.journals.ekb.eg/article_63497_d41d8cd98f00b204e9800998ecf8427e.pdf
dx.doi.org/10.21608/mjeer.2017.63497
Maximization of Total Throughput Using Pattern Search Algorithm in Underlay Cognitive Radio Network
Ibrahim
Zewail
Higher Institute of Engineering and Technology, kafr El-Shiekh, Egypt.
author
Waleed
Saad
Faculty of Electronic Engineering, Menoufia University, Menouf, 32952, Egypt.
author
Mona
Shokair
Faculty of Electronic Engineering, Menoufia University, Menouf, 32952, Egypt.
author
Sami. A.
El_dolil
Faculty of Electronic Engineering, Menoufia University, Menouf, 32952, Egypt.
author
text
article
2017
eng
he concept of Cognitive radio (CR) is considered as a promising solution for efficient spectrum utilization to solve the spectrum scarcity problem. This paper proposes Pattern Search (PS) algorithm for maximization of the total throughput of the communication system and increases the Quality-of-Service (QoS) of the Secondary Users (SUs) with saving QoS of the Primary Users (PUs). Moreover, a comparison between the proposed algorithm and other algorithms will be drawn. Further, the effect of the number of Primary Users (PUs), the number of Secondary Users (SUs) and the number of subcarriers are studied for increasing the total throughput for the SUs.
Menoufia Journal of Electronic Engineering Research
Menoufia University, Faculty of Electronic Engineering
1687-1189
26
v.
2
no.
2017
307
319
https://mjeer.journals.ekb.eg/article_63501_d41d8cd98f00b204e9800998ecf8427e.pdf
dx.doi.org/10.21608/mjeer.2017.63501
Medical Image Fusion: A Literature Review Present Solutions and Future Directions
Heba M.
El-Hoseny
Department of Electrical Engineering, Faculty of Engineering, Benha University, Egypt
author
Wael
Abd Elrahman
Department of Electrical Engineering, Faculty of Engineering, Benha University, Egypt
author
El-Sayed M.
El.Rabaie
Faculty of Electronic Engineering, Menoufia University, Egypt.
author
Osama S.
Faragallah
Faculty of Electronic Engineering, Menoufia University, Egypt.
author
Fathi E
Abd El-Sami
Faculty of Electronic Engineering, Menoufia University, Egypt.
author
text
article
2017
eng
In the current era of technological development, medical imaging plays an important role in many applications of medical diagnosis and therapy. This requires more accurate images with much more details and information for correct medical diagnosis and therapy. Medical image fusion is one of the solutions for obtaining both high spatial and high spectral information in a single image. Multimodal medical image fusion provides a remarkable improvement in the fused image quality. This review paper covers the following items, the basic definition of the image fusion process, applications, advantages, and disadvantages of fusion procedures, A short summery of radiological imaging modalities, usage, applications, and observed advantages and disadvantages of each modality is introduced to provide a comprehensive view of medical imaging modalities. Through this, a hybrid imaging combinations are suggested for better Image visualization for different human organs. The paper ends with some novel trends in the medical image fusion topic.
Menoufia Journal of Electronic Engineering Research
Menoufia University, Faculty of Electronic Engineering
1687-1189
26
v.
2
no.
2017
321
350
https://mjeer.journals.ekb.eg/article_63510_d41d8cd98f00b204e9800998ecf8427e.pdf
dx.doi.org/10.21608/mjeer.2017.63510
Effect of DWDM Channel Spacing on the Signal Quality for DWDM/CWDM FTTx Network
Abd El–Naser A.
Mohamed
Dept. of Electronics and Electrical Communications Engineering, Faculty of Electronic
Engineering, Menouf 32951, Menoufia University, EGYPT
author
Ahmed Nabih Zaki
Rashed
Dept. of Electronics and Electrical Communications Engineering, Faculty of Electronic
Engineering, Menouf 32951, Menoufia University, EGYPT
author
Mohamed S.
Tabbour
Dept. of Electronics and Electrical Communications Engineering, Faculty of Electronic
Engineering, Menouf 32951, Menoufia University, EGYPT
author
Mohamed
El-assar
Dept. of Electronics and Electrical Communications Engineering, Faculty of Electronic
Engineering, Menouf 32951, Menoufia University, EGYPT
author
text
article
2017
eng
In this paper, two models of fiber-to-the-x (FTTx) networks are provided, one of hybrid dense wavelength division multiplexing / coarse wavelength division multiplexing (DWDM/CWDM) withhigh subscriber’s allocated bandwidth, and the other of hybrid ultra-dense wavelength division multiplexing / coarse wavelength division multiplexing (UDWDM/CWDM) with high network capacity. The effect of the fiber chromatic dispersion on the signal quality was demonstrated. The behavior of the network with respect to the changing of the DWDM channel spacing and the relation between the channel spacing and the system bit rate was discussed
Menoufia Journal of Electronic Engineering Research
Menoufia University, Faculty of Electronic Engineering
1687-1189
26
v.
2
no.
2017
351
366
https://mjeer.journals.ekb.eg/article_63514_d41d8cd98f00b204e9800998ecf8427e.pdf
dx.doi.org/10.21608/mjeer.2017.63514
Real Time- Optimized Scheduler Using Earliest Due Date Mechanism in LTE Downlink System
Mohamad I.
Elhadad
Department of Electronics and Electrical Communications, Faculty of Electronic
Engineering, Menoufia University, Menouf, 32952, Egypt.
author
El-Sayed M.
El-Rabaie
Department of Electronics and Electrical Communications, Faculty of Electronic
Engineering, Menoufia University, Menouf, 32952, Egypt.
author
Mohammed
Abd-Elnaby
Department of Electronics and Electrical Communications, Faculty of Electronic
Engineering, Menoufia University, Menouf, 32952, Egypt.
author
text
article
2017
eng
Long Term Evolution (LTE) is standardized by the Third Generation Partnership Project (3GPP) as the most recent standard in the mobile network technology tree with flat architecture in order to conduct a new model aiming to offer higher-data-rate, lower-latency, and packet-optimized radio access technology called Evolved Universal Terrestrial Radio Access Network (E-UTRAN). However, the schedulers aiming to deal with the Real Time (RT) and the Non-Real Time (NRT) traffic have not defined by the 3GPP specifications. Accordingly, it is very important to design and implement optimum scheduling schemes for achieving the required Quality of Service (QoS) prerequisites such as packet delay and Packet Loss Rate (PLR) of RT multimedia services in E-UTRAN. Thus, the proposed scheduler is presented in this paper as well as the performance of the new scheduling strategy which is based on the Earliest Due Date (EDD) approach. The new proposed scheduler provides better results as compared with the conventional scheduling strategies, especially for multimedia applications in downlink framework of LTE system. The proposed scheduler achieves the highest good-put as well as the lowest PLR especially for the video users.
Menoufia Journal of Electronic Engineering Research
Menoufia University, Faculty of Electronic Engineering
1687-1189
26
v.
2
no.
2017
367
386
https://mjeer.journals.ekb.eg/article_63608_d41d8cd98f00b204e9800998ecf8427e.pdf
dx.doi.org/10.21608/mjeer.2017.63608
PAPR Reduction for OFDM based Visible Light Communication Systems using Proposed Hybrid Technique
Haitham
Freag
Dept. of Electronics and Electrical Comm., High Institute of Engineering and
Technology, Kafrelsheikh, EGYPT.
author
Emad S.
Hassan
Dept. of Electronics and Electrical Comm., Faculty of Electronic Eng., Menoufia
University, 32952, Menouf, EGYPT.
author
Sami
El-Dolil
Dept. of Electronics and Electrical Comm., Faculty of Electronic Eng., Menoufia
University, 32952, Menouf, EGYPT.
author
Moawad
Dessouky
Dept. of Electronics and Electrical Comm., High Institute of Engineering and
Technology, Kafrelsheikh, EGYPT.
author
text
article
2017
eng
Orthogonal Frequency Division Multiplexing (OFDM) is utilized with visible light communication (VLC) systems to decrease the impacts of inter-symbol interference (ISI) and to achieve communication with high speed of data transmission and huge bandwidth. In any case, the main problem in OFDM based VLC systems is high peak-to-average power ratios (PAPRs). This paper proposes a hybrid PAPR reduction technique based on signal transformation combined with clipping. The Hadamard transform is used in the proposed technique to reduce the PAPR without affecting the bit error rate (BER) of the VLC systems. The optimum clipping threshold at which the PAPR is reduced simultaneously with the improvement the BER of the VLC systems is also determined. The performance of the proposed system is assessed in terms of complementary cumulative distribution function (CCDF) and the BER. The obtained results demonstrate that the proposed procedure can simultaneously decrease the PAPR and achieve good BER performance compared to the OFDM based VLC system.
Menoufia Journal of Electronic Engineering Research
Menoufia University, Faculty of Electronic Engineering
1687-1189
26
v.
2
no.
2017
387
397
https://mjeer.journals.ekb.eg/article_63611_d41d8cd98f00b204e9800998ecf8427e.pdf
dx.doi.org/10.21608/mjeer.2017.63611
Efficient Routing with Compressive Sensing for Wireless Sensor Network
Rania
Ahmed
Training, Evaluating, and Updating Expert Systems, Central Laboratory for Agricultural
Expert System, Giza, Egypt
author
EL-Sayed M.
El-Rabaie
Dept. of Electronics and Electrical Communications Eng., Faculty of Electronic
Engineering, Menoufia University, Egypt.
author
Mohammed
Abd-Elnaby
Dept. of Electronics and Electrical Communications Eng., Faculty of Electronic
Engineering, Menoufia University, Egypt.
author
FathiAbd
EL-Samie
Dept. of Electronics and Electrical Communications Eng., Faculty of Electronic
Engineering, Menoufia University, Egypt.
author
text
article
2017
eng
A wireless sensor network is a collection of nodes cooperative to each other and organized into a certain network. It is used in large applications to monitor the physical or environmental conditions. Agriculture and farming is one of the most important fields which uses wireless sensor network for monitoring and gathering data such as underground water resources in new cultivated lands. The energy saving is the most important parameter in wireless sensor network. In this paper, the compressive sensing with LEACH routing protocol is investigated for the purpose of increasing the lifetime of the nodes by reducing the transmitted data size. Simulation results show that node life time achieved by the proposed LEACH routing protocol with compressive sensing can be increased approximately to 1.7 times that achieved by conventional LEACH protocol.
Menoufia Journal of Electronic Engineering Research
Menoufia University, Faculty of Electronic Engineering
1687-1189
26
v.
2
no.
2017
399
412
https://mjeer.journals.ekb.eg/article_63612_d41d8cd98f00b204e9800998ecf8427e.pdf
dx.doi.org/10.21608/mjeer.2017.63612
Proposed Sink Controlled Uniform Cluster Head Distribution Routing Protocol for WSNs
Asmaa
Amer
Department of Electronics and Electrical Communications, Faculty of Electronic
Engineering, Menoufia University, Menouf, Egypt.
author
AbdElwahab
Fawzy
Department of Electronics and Electrical Communications, Faculty of Electronic
Engineering, Menoufia University, Menouf, Egypt.
author
Mona
Shokair
Department of Electronics and Electrical Communications, Faculty of Electronic
Engineering, Menoufia University, Menouf, Egypt
author
Waleed
Saad
Department of Electronics and Electrical Communications, Faculty of Electronic
Engineering, Menoufia University, Menouf, Egypt
author
Said
ELHalafawy
Department of Electronics and Electrical Communications, Faculty of Electronic
Engineering, Menoufia University, Menouf, Egypt
author
Ahemd
Elkorany
Department of Electronics and Electrical Communications, Faculty of Electronic
Engineering, Menoufia University, Menouf, Egypt
author
text
article
2017
eng
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 Routing Protocols (CBRP). Irregular CHs allocation yields unbalanced load on CHs and coverage hole.Therefore, the network performance is impaired.On the basis of importance of node location and its residual energy on the CH selection, Sink Controlled Uniform Cluster Head Distribution routing protocol for wireless sensor network (SCUCD)is proposed in this paper. The advantage ofthis proposed protocol is thatCHsareregularly allocated in the sensing field. Moreover, there is multi hop communication mechanism between CHs in the proposed protocol. MATLAB simulator is utilized to evaluate this protocol. Simulation results showedthat SCUCD achieves maximum network lifetime, residual energy consumption of sensor node and throughput in comparison with other protocols such as LEACH, MH-LEACH
Menoufia Journal of Electronic Engineering Research
Menoufia University, Faculty of Electronic Engineering
1687-1189
26
v.
2
no.
2017
413
426
https://mjeer.journals.ekb.eg/article_63613_d41d8cd98f00b204e9800998ecf8427e.pdf
dx.doi.org/10.21608/mjeer.2017.63613
An Energy-Aware MAC Protocol for Improving the Lifetime of WSNs
Khalil
Ramadan
Faculty of Electronic Engineering, Menoufia University, Menouf, Egypt
author
M. I.
Dessouky
Faculty of Electronic Engineering, Menoufia University, Menouf, Egypt
author
Mohammed
Abd-Elnaby,
Faculty of Electronic Engineering, Menoufia University, Menouf, Egypt
author
Fathi
Abd EL-Samie
Faculty of Electronic Engineering, Menoufia University, Menouf, Egypt
author
text
article
2017
eng
The sensor nodes power units in Wireless Sensor Networks (WSNs) contain small size batteries and low battery capacity. So, the primary concern in such networks lies in minimizing the energy dissipation. Due to this energy constraint, this paper presents an energy-aware MAC protocol for improving the lifetime of WSNs. The new approach overcomes a major drawback of existing Medium Access Control (MAC) protocols such as Sensor-MAC (S-MAC) and Multi-Layer MAC (ML-MAC), which do not take the initial node power into consideration, which may result in unfair power consumption among the nodes, especially for low-power nodes. The new approach aims to maximize the life time for low-power nodes, which leads to increasing the overall network life time. The experimental results show that the proposed MAC protocol saves energy more than both S-MAC and ML-MAC. The new approach saves energy of about 56.8% more than S-MAC protocol. It also achieves 33.7% energy saving compared to ML-MAC protocol.
Menoufia Journal of Electronic Engineering Research
Menoufia University, Faculty of Electronic Engineering
1687-1189
26
v.
2
no.
2017
445
459
https://mjeer.journals.ekb.eg/article_63616_d41d8cd98f00b204e9800998ecf8427e.pdf
dx.doi.org/10.21608/mjeer.2017.63616
Performance Enhancement of Optical Wireless OFDM Communication
Muhammed A.
Eltoukhi
Dept. of electronics and comm. Engineering, Delta Academy of Engineering and
Technology, Mansoura, Egypt
author
Mohammed
Abd-Elnaby
Dept. of electronics and comm. Engineering, Faculty of Elect., Eng., Menoufia
University, Egypt.
author
Sami A.
El-Dolil
Dept. of electronics and comm. Engineering, Faculty of Elect., Eng., Menoufia
University, Egypt.
author
Fathi Abd
El-Samie
Dept. of electronics and comm. Engineering, Faculty of Elect., Eng., Menoufia
University, Egypt
author
text
article
2017
eng
Optical wireless Communication (OWC) is an optical radiation for data transmission through free space, and it can be operated indoor and outdoor. Asymmetrically clipped DC-biased Optical OFDM (ADO-OFDM) is a type of indoor OWC based OFDM.A conventional asymmetrically clipping optical (ACO)-OFDM is applied to modulate odd subcarriers while even subcarriers are modulated by a novel technique called DC-biased optical OFDM (DCO-OFDM). ADO has better optical power performance than conventional ACO-OFDM and DCO-OFDM methods. The main drawback of ADO is the clipping noise which falls just on the even subcarriers. So, in this paper convolutional and turbo coding techniques are investigated to improve the error performance of ADO-OFDM system over Additive White Gaussian Noise (AWGN) and diffuse channel. Simulation results show that the proposed coded ADO-OFDM using convolutional and turbo coding techniques achieve significantly lower bit error rate (BER) compared to the uncoded ADO-OFDM. In addition, turbo coded ADO-OFDM gives the best BER performance.
Menoufia Journal of Electronic Engineering Research
Menoufia University, Faculty of Electronic Engineering
1687-1189
26
v.
2
no.
2017
461
478
https://mjeer.journals.ekb.eg/article_63619_d41d8cd98f00b204e9800998ecf8427e.pdf
dx.doi.org/10.21608/mjeer.2017.63619
Development of Autonomous Self-Powered Robotic System for Antipersonnel Landmines Detection and Extraction
Waleed
Seada
Industrial Electronics and Control Department, Faculty of Electronic Engineering,
Menoufia University, Menouf, Egypt
author
Elkhatib
Kamal
Industrial Electronics and Control Department, Faculty of Electronic Engineering,
Menoufia University, Menouf, Egypt
author
Magdy
Koutb
Industrial Electronics and Control Department, Faculty of Electronic Engineering,
Menoufia University, Menouf, Egypt
author
text
article
2017
eng
Detection and removal of antipersonnel landmines has become one of major scientific and technological challenges. Conventional methods of demining are expensive, slow and low efficiency. There is a dire need for automated, efficient, lowcost, and self powered robotic systems for the purpose of mine detection and disposal. This paper deals with the design and development of a novel low cost robotic system for mine detection and extraction. This robotic system consists of a mobile platform carrying flexible arm, the sensors system and the developed electronic cards of the system. The sensors system comprises an efficient design of metal detector sensor in addition to a distributed sensors fusion system that identifies the robot environment and operation. The robot extracts the mine by drilling the soil around the mine without touching it, catching the mine and extracting it from the ground while enabling the operator to control the robot wirelessly from a safe distance. A renewable solar power supply is supplemented to provide the system with the necessary power. Control of the overall system is achieved using PICs 18F452 microcontroller circuits. A prototype is developed and extensive field tests were performed that confirms the success of the illustrated design.
Menoufia Journal of Electronic Engineering Research
Menoufia University, Faculty of Electronic Engineering
1687-1189
26
v.
2
no.
2017
479
500
https://mjeer.journals.ekb.eg/article_63620_d41d8cd98f00b204e9800998ecf8427e.pdf
dx.doi.org/10.21608/mjeer.2017.63620
Utilizing RFID for Effective Real Time Retrieval and Translation of Public Advertisements
Sonia
Hashish
Dept. of Computer Science and Engineering, Faculty of Electronic Engineering,
Menoufia University, Egypt
author
Shaleeza
Sohail
Dept. of Computer Science, Umm Al-Qura University, Makkah, Saudi Arabia.
author
text
article
2017
eng
One of the important characteristics of smart cities is ease in accessibility of information for residents and visitors alike. Language barriers, impairments and presence of crowd should not influence the context-awareness of the visitors in such cities. The information provided via advertisement boards play an important part in this regard. In this paper, we propose Smart ads- RFID based system for real time retrieval and translation of public advertisements. Candidate signs and advertisements are RFID-enabled and the electronic contents of such advertisements/signs are acquired and stored in a cloud database server. The system offers both real time and off-line text/voice translation into user's preferred language and communicates the translated contents to user's smart phone. The system also provides real time GIS map visualization of the RFID enabled advertisements in the city. It collects statistics regarding the number of users subscribed in the system, their locations, preferred language and most frequently used languages to help decision makers to decide when and where to post such advertisements. We described our developed pilot project and we investigated its usability, validity and usefulness using Fuzzy Rule-based System. We believe that such system could provide promising services within the context of smart cities.
Menoufia Journal of Electronic Engineering Research
Menoufia University, Faculty of Electronic Engineering
1687-1189
26
v.
2
no.
2017
501
518
https://mjeer.journals.ekb.eg/article_63623_d41d8cd98f00b204e9800998ecf8427e.pdf
dx.doi.org/10.21608/mjeer.2017.63623
A Survey of RANSAC enhancements for Plane Detection in 3D Point Clouds
Ramy Ashraf
Zeineldin
Dept. of Computer Science and Eng., Faculty of Elect., Eng., Menoufia University,
Menouf, Egypt.
author
Nawal Ahmed
El-Fishawy
Dept. of Computer Science and Eng., Faculty of Elect., Eng., Menoufia University,
Menouf, Egypt.
author
text
article
2017
eng
Planar surfaces are distinguished features of man-made environment, which are used in many computer vision applications such as object detection, motion segmentation, 3D scene reconstruction, and 3D mapping. One of the most used technique for robust plane detection is the RANdom SAmple Consensus (RANSAC), which is a global iterative method for estimating the parameters of a certain model from input data points contaminated by a set of outliers (noisy data). Unfortunately, the standard RANSAC suffers from some problems regarding the processing time, accuracy of fitting data, and finding an optimal solution. This paper gives a review study of the most recent RANSAC enhancements techniques. In addition, it covers the solving techniques for the speed, accuracy and optimality problems.
Menoufia Journal of Electronic Engineering Research
Menoufia University, Faculty of Electronic Engineering
1687-1189
26
v.
2
no.
2017
519
537
https://mjeer.journals.ekb.eg/article_63627_d41d8cd98f00b204e9800998ecf8427e.pdf
dx.doi.org/10.21608/mjeer.2017.63627
Random Topology Generation for Ad-hoc Networks
Ibrahim
Fayed
Dept. of Computer Science and Engineering, Faculty of Electronic Engineering,
Menoufia University, Egypt
author
Mokhtar A.
Mohamed
Dept. of Computer Science and Engineering, Faculty of Electronic Engineering,
Menoufia University, Egypt
author
Gamal
Attiya
Dept. of Computer Science and Engineering, Faculty of Electronic Engineering,
Menoufia University, Egypt
author
Nawal
El-Fishawy
Dept. of Computer Science and Engineering, Faculty of Electronic Engineering,
Menoufia University, Egypt
author
text
article
2017
eng
The deployment of Ad-hoc network is crucial for confined area, military, and emergency application. So, topology generation of connected Ah-hoc network is vital for dealing with such networks. Simulation tool is very important for ad hoc networks topology generation due to the expensive and difficulty of real experiments. In this paper we reviewed some of the available methods that concerned with the generation of Ad-hoc random graphs indicating their weakness. Two proposals for topology generation are presented and discussed in this paper. The proposed algorithms enable the user to generate various graphs by deciding 1) the number of nodes, 2) the radio range and 3) the minimum distance between any two nodes in the graph. The results show that the proposed algorithms are faster, accurate, and dependable than the traditional method.
Menoufia Journal of Electronic Engineering Research
Menoufia University, Faculty of Electronic Engineering
1687-1189
26
v.
2
no.
2017
539
550
https://mjeer.journals.ekb.eg/article_63631_d41d8cd98f00b204e9800998ecf8427e.pdf
dx.doi.org/10.21608/mjeer.2017.63631
Effects of Dynamic Scheduling of Internet Traffics on Multimedia Application Performance
Hanaa
Mohammed
Dept. of Electronics & Electrical Communications Engineering, Faculty of
Engineering, Tanta University, Egypt.
author
Gamal
Attiya
Faculty of Electronic Engineering, Menoufia University, Egypt
author
Samy
El-Dolil
Faculty of Electronic Engineering, Menoufia University, Egypt
author
text
article
2017
eng
Over the last few years computer networks have experienced an explosive growth, causing congestion collapse problem, where no data transfers through the network, the throughput drops to zero, the response time tends to infinity, and as a result causing performance degradation. Congestion is handled at the end systems using end-to-end congestion control protocols, and at the network routers using network-assistant congestion control strategies, active queue management techniques (AQM) for example. Differ from data applications which built on top of transmission control protocol (TCP), most real-time traffics, have been built on top of unreliable connectionless user datagram protocol (UDP), such as voice-over-IP or streaming video over the Internet, since real-time applications can accept loss more than delay and jitter. Buffer control techniques are used to manage the queue size, and to enforce approximate fairness among a large number of different internet flows by queue management and scheduling disciplines. In this paper a new class-based dynamic scheduling technique is proposed. With this proposed technique, quality of service (QoS) requirements can be provided for multimedia video and audio traffic as same as that for the best-effort TCP-based data traffic applications. Using the network simulator NS-2 the proposal is compared with the most well-known scheduling approaches.
Menoufia Journal of Electronic Engineering Research
Menoufia University, Faculty of Electronic Engineering
1687-1189
26
v.
2
no.
2017
551
570
https://mjeer.journals.ekb.eg/article_63635_d41d8cd98f00b204e9800998ecf8427e.pdf
dx.doi.org/10.21608/mjeer.2017.63635
Efficient Molecular Communication Protocol based on Mobile Ad-hoc Nanonetwork
Amina
El-taweel
Department of Electronics and Electrical Communications Eng., Faculty of Electronic
Engineering, Menoufia University, 32952, Menouf, Egypt
author
Saied M.
Abd El-atty
Department of Electronics and Electrical Communications Eng., Faculty of Electronic
Engineering, Menoufia University, 32952, Menouf, Egypt
author
S.
El-Rabaie
Department of Electronics and Electrical Communications Eng., Faculty of Electronic
Engineering, Menoufia University, 32952, Menouf, Egypt
author
text
article
2017
eng
For the realization of future nanonetwork applications in the domain of medicine such as health monitoring and targeted drug delivery, a molecular communication protocol (MCP) for interconnecting nanomachines should be addressed. In this paper, an efficient molecular communication protocol (MCP) in the molecular network layer is introduced. MCP is inspired of the diffusion property in the neuron system in order to model the biological communication among nanomachines. According to enzymatic kinetic, MCP-based feedback scheme (positive or negative), is able to adjust the transmission rate to achieve the maximum throughput and efficiency. Subsequently, we propose a propagation model based on the epidemic routing and the characteristic of ad hoc network to obtain a closed-form expression of average message delay and tolerant traffic rate. The numerical results reveal that the proposed MCP is able to maximize the minimum throughput and efficiency of molecular transmission.
Menoufia Journal of Electronic Engineering Research
Menoufia University, Faculty of Electronic Engineering
1687-1189
26
v.
2
no.
2017
427
443
https://mjeer.journals.ekb.eg/article_63638_d41d8cd98f00b204e9800998ecf8427e.pdf
dx.doi.org/10.21608/mjeer.2017.63638