Papers by sherif kamel
The innovations in information and communication technology are diverse, changing, effective and ... more The innovations in information and communication technology are diverse, changing, effective and growing everyday. Individuals, organizations and societies are all affected from these innovations and developments taking place with implications on different aspects of the economy. This paper addresses the telecommunications industry in Egypt since its inception in the 19 century. The paper focuses on the historical background of the industry, a description of the different development phases until the massive infrastructure development that took place in the 1980s and 1990s with the evolution of the mobile technology and its introduction as a service to the public, the competition taking place and the future development and growth plans in the sector. The paper will highlight the liberalization efforts related to the industry at large and to the telecommunication services offered in specific in addition to the improvement and upgrading of the infrastructure both quantitatively and qu...
International journal of Computer Networks & Communications, 2016
The impetus for this paper is the development of Fuzzy Basis Function "FBF" that assigns in an op... more The impetus for this paper is the development of Fuzzy Basis Function "FBF" that assigns in an optimal fashion, a function approximation for a nonlinear dynamic system. A fuzzy basis function is applied to find the best location of the characteristic points by specifying the set of fuzzy rules. The advantage of this technique is that, it may produce a simple and well-performing system because it selects the most significant fuzzy basis functions to minimize an objective function in the output error for the fuzzy rules. The fuzzy basis function is a linguistic fuzzy IF_THEN rule. It provides a combination of the numerical information and the linguistic information in the form input-output pairs and in the form of fuzzy rules. The proposed control scheme is applied to a magnetic ball suspension system.
Journal of Cases on Information Technology, 2006
The growing use of e-learning systems has been documented by numerous studies (Levy, 2005). Yet i... more The growing use of e-learning systems has been documented by numerous studies (Levy, 2005). Yet in spite of this enormous growth, little attention has been given to the issue of security of e learning systems both in research and in practice. Security of e-learning systems has a unique challenge as these systems are accessed and managed via the Internet by thousands of users over hundreds of networks. However, the Internet can pose security threats such as unauthorized access, hacking/cracking, obtaining sensitive information, and altering data and configuration, as well as enabling academic misconduct incidents (Freeh, 2000; Ramim, 2005; Sridhar & Bhasker, 2003). At the same time, cyber attacks have proliferated significantly in recent years. As a result, proper IT policies and procedures, in particular ones related to security of information systems, have become critical for organizations. This case study was written from the IS consultant’s point of view and addresses the issues ...
International journal of Computer Networks & Communications, 2014
Due to the proliferation in the number of users that are accessing the internet and due to the in... more Due to the proliferation in the number of users that are accessing the internet and due to the increase in the number of the electronic devices that support mobility like mobiles, laptops and many others that definitely lead to the need of a protocol that supports a mobility. Mobile Internet Protocol is a recommended Internet protocol designed to support the mobility of a user (host). This protocol provides a continuous connectivity for any mobile host. In the traditional Mobile IP all packets forwarded to the Mobile host from the correspondent node will be forwarded via the Home Agent (HA) and that leads to the triangle routing problem. (ISP MBG) technique is used as a route optimization technique for solving the triangle routing problem in conventional Mobile IPv4. This technique has been implemented on .net platform .The study of this technique was discussed before using 2 similar Internet Service Providers and the simulation results provided a better performance compared with the Conventional Mobile IP Technique. In this paper the simulator will be used to study the performance of the (ISP MBG) technique using two different Internet Service Providers (ISPs) structures separated by a single Mobile Border Gateway (MBG).Simulation results shows also a better performance compared with the conventional Mobile IP technique .
The impetus for this paper is the development of Fuzzy Basis Function " FBF " that assigns in an ... more The impetus for this paper is the development of Fuzzy Basis Function " FBF " that assigns in an optimal fashion, a function approximation for a nonlinear dynamic system. A fuzzy basis function is applied to find the best location of the characteristic points by specifying the set of fuzzy rules. The advantage of this technique is that, it may produce a simple and well-performing system because it selects the most significant fuzzy basis functions to minimize an objective function in the output error for the fuzzy rules. The fuzzy basis function is a linguistic fuzzy IF_THEN rule. It provides a combination of the numerical information and the linguistic information in the form input-output pairs and in the form of fuzzy rules. The proposed control scheme is applied to a magnetic ball suspension system.
Nowadays a lot of computing devices are available in the market. These devices are supporting wir... more Nowadays a lot of computing devices are available in the market. These devices are supporting wireless and mobile technology. Mobile IPV6 is an enhanced version that was designed to be a natural outgrowth of Mobile IPV4. As reliance on Internet and web-based services increases, so do customer expectations for availability, reliability, and responsiveness of the services, especially in the Mobile IPv6 network environment. In this paper, the advantages of IPv6 for mobility are given and the Mobile IPv6 protocol is overviewed. Then the paper introduces some issues about Route optimization security and Quality of service (QoS) requirement of packet streams between Mobile Node (MN) and Correspondent Node (CN) or between MN and Home Agent (HA).
Nowadays, a huge number of people are using cars every day. In big cities, parking spaces have be... more Nowadays, a huge number of people are using cars every day. In big cities, parking spaces have become a very big problem and people need to save time by avoiding looking for parking areas. Parking cars in the streets are not safe and this is one of the main problems facing the people. One particular solution is the automobile turntable, which has been used successfully in a variety of applications, including commercial and residential. The intelligent garage is useful for people to park their cars and leave cars safe and secured. There are many systems introducing smart parking but they have many problems. The proposed system will solve most of those problems. Programmable Logic Controller (PLC) issued to control operation in the intelligent garage system. The DC motor will take the car up or down and park it in the empty slots. SCADA [ Supervisory Control and Data Acquisition ] system will be used to monitor the status , faults, and alarms in the garage to avoid any problems.
The environment faces too many issues including the water pollution problem in the Nile River. Th... more The environment faces too many issues including the water pollution problem in the Nile River. This problem could be solved by having a system provides the factory with the control and monitoring to be able to monitor and treat their water remnants according to the standards required by ministry of environment. This project will establish and design a new control system that could be used by factories for monitoring and controlling their remnants. The project based on using an interfacing device for facility management technology (eWON), and also Supervisory Control and Data Acquisition System (SCADA), that support General Packet Radio Service (GPRS) for remote data connection.
Nowadays, wide range of sectors within a community is focusing on the usage of different communic... more Nowadays, wide range of sectors within a community is focusing on the usage of different communication systems to support mobile applications such as, home and industry ensuring the real-time, safe and secure behavior of these systems. Such trends merging mobile value added services and home/industrial automation technologies. This research investigates the potential for remote controlled operation of both home and industrial automation systems. The proposed model for designing this system is to develop and implement an efficient low cost PLC (Programmable Logic Control) based GSM Control module that will integrate the mobile application platforms and home/industrial automation technologies with different options of communication protocols and command structure from a cellular phone over the GSM network or internet accessing mobile home/industrial automation service and the relevant controlled devices.
This paper presents a novel methodology for designing a fuzzy controller for a dynamically interc... more This paper presents a novel methodology for designing a fuzzy controller for a dynamically interconnected electric power system. One controller with constant gains for different operating points may not be sufficient to guarantee satisfactory performance for Load Frequency Control. Therefore, the knowledgebased fuzzy controller is proposed either to cope with the operating conditions or to remove any fixed mode. The fuzzy logic control utilizes the error and the change of error as fuzzy linguistic inputs to regulate the system performance. The proposed control scheme is applied to a two-area power system provided with both hydraulic and thermal turbines.
£laving a seamless integration between wireless LAN and wireless WAN, needs an adaptation stack m... more £laving a seamless integration between wireless LAN and wireless WAN, needs an adaptation stack model. To provide an integrative layer of Mobile IP on the top of different LAN/WAN networks. As Mobile IP is normally used with Macro mobility [wireless WANs] so it is not known how well it performs under Micro mobility environment [wireless LANs] against native MAC level handoff. Through the analytical studies of different protocols used in both vertical and horizontal handoffs, an approach has suggested to integrate both handoff Mechanisms and at the same time optimizing the parameters required for each handoff mechanism.
As the use of IP version 4 has elJhll1dcd, many lesions have been learned from its lise, Improvem... more As the use of IP version 4 has elJhll1dcd, many lesions have been learned from its lise, Improvements that are necessmy few IP to remain thedominalll protocol in the coming years have been solidified info a proposal called IP version 6 (IPv6), The most significant change to the protocol is in the size of the address space in each packet. Where version 4 had only 32 bits for each IP addresses, version 6 has 128 bits. This expansion solves the problem of the lackofavailable address space already plaguing the internet. A dditio 11 0 lZv, recall that the reaSOl1 that mobile IPv4 foreign agent care-o/addressing exists is to reduce the number ofextra IF nllmbers needed to support Mobile IF. With foreign agent care-ofaddressing, everv lI10bile node conlJected to a single foreign agent uses the foreign agent's address jor it 'sown care-o/address. With Mobile IPF6 address space is no longer . an issue, so the use ofthe foreign agent is eliminated (lnd packets arc ahvays directly tunneled to the . mobile node itself. Many approaches have been evolved in improving the routing ,handoffs and Security in Mobile IPv6, This paper introduces sOllle of recent. schemes that provide better peliormance than the existing Mobile IPv6 protocol.
The tremendous demands from social market are pushing the booming development of mobile communica... more The tremendous demands from social market are pushing the booming development of mobile communications faster than ever before, leading to plenty of new advanced techniques emerging. With the converging of mobile and wireless communications with Internet services, the boundary between mobile personal telecommunications and wireless computer networks is disappearing. Wireless networks of the next generation need the support of all the advances on new architectures, standards, and protocols. Mobility management is an important issue in the area of mobile communications, which can be best solved at the network layer. One of the key features of the next generation wireless networks is all-IP infrastructure. This paper discusses the mobility management schemes for the next generation mobile networks through extending IP’s functions with mobility support. A global hierarchical framework model for the mobility management of wireless networks is presented, in which the mobility management is divided into two complementary tasks: macro mobility and micro mobility. As the macro mobility solution, a basic principle of Mobile IP is introduced, together with the optimal schemes and the advances in IPv6. The disadvantages of the Mobile IP on solving the micro mobility problem are analysed, on the basis of which three main proposals are discussed as the micro mobility solutions for mobile communications, including Hierarchical Mobile IP (HMIP), Cellular IP, and Handoff-Aware Wireless Access Internet Infrastructure (HAWAII). A unified model is also described in which the different micro mobility solutions can coexist simultaneously in mobile networks.
Due to the proliferation in the number of users that are accessing the internet and due to the in... more Due to the proliferation in the number of users that are accessing the internet and due to the increase in
the number of the electronic devices that support mobility like mobiles, laptops and many others that
definitely lead to the need of a protocol that supports a mobility. Mobile Internet Protocol is a
recommended Internet protocol designed to support the mobility of a user (host). This protocol provides a
continuous connectivity for any mobile host . In the traditional Mobile IP all packets forwarded to the
Mobile host from the correspondent node will be forwarded via the Home Agent (HA) and that leads to
the triangle routing problem .
(ISP MBG) technique is used as a route optimization technique for solving the triangle routing problem
in conventional Mobile IPv4. This technique has been implemented on .net platform .The study of this
technique was discussed before using 2 similar Internet Service Providers and the simulation results
provided a better performance compared with the Conventional Mobile IP Technique. In this paper the
simulator will be used to study the performance of the (ISP MBG) technique using two different Internet
Service Providers ( ISPs) structures separated by a single Mobile Border Gateway ( MBG).Simulation
results shows also a better performance compared with the conventional Mobile IP technique .
This paper presents a new approach for designing a Fuzzy Logic Controller "FLC"for a dynamically
... more This paper presents a new approach for designing a Fuzzy Logic Controller "FLC"for a dynamically
multivariable nonlinear coupling system. The conventional controller with constant gains for different
operating points may not be sufficient to guarantee satisfactory performance for Robot manipulator. The
Fuzzy Logic Controller utilizes the error and the change of error as fuzzy linguistic inputs to regulate the
system performance. The proposed controller have been developed to simulate the dynamic behavior of A
Two-Link Functional Manipulator. The new controller uses only the available information of the inputoutput
for controlling the position and velocity of the robot axes of the motion of the end effectors
Mobile IP has seen slow deployment for two major reasons; the need for enhancing edge routers wit... more Mobile IP has seen slow deployment for two major reasons; the need for enhancing edge routers with Home Agent/Foreign Agent functionality and the fact that triangle routing in such systems is not efficient. Triangle Routing is defined as the route that must be taken through the Home Agent for any traffic sent by the Correspondent Node to the Mobile Node. This route is triangle in nature and longer than the normal path between the Corresponded Node and the Mobile Node. Many protocols and research efforts have been developed to solve this problem. Internet service Provider (ISP MBG) is one of the proposed techniques used for solving the triangle routing problem in conventional Mobile IPv4. This paper will provide a further study on the performance evaluation of Route Optimization in Mobile IPv4 based on ISP MBG scheme. The proposed technique has been implemented and tested on the Microsoft.net platform. Simulation results prove that the new framework has solved the Triangle Routing Problem in Mobile IP by providing a shorter route with a minimum transmission time for all the datagrams transferred between the Correspondent Nodes and the Mobile Nodes.
Teaching Documents by sherif kamel
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Papers by sherif kamel
the number of the electronic devices that support mobility like mobiles, laptops and many others that
definitely lead to the need of a protocol that supports a mobility. Mobile Internet Protocol is a
recommended Internet protocol designed to support the mobility of a user (host). This protocol provides a
continuous connectivity for any mobile host . In the traditional Mobile IP all packets forwarded to the
Mobile host from the correspondent node will be forwarded via the Home Agent (HA) and that leads to
the triangle routing problem .
(ISP MBG) technique is used as a route optimization technique for solving the triangle routing problem
in conventional Mobile IPv4. This technique has been implemented on .net platform .The study of this
technique was discussed before using 2 similar Internet Service Providers and the simulation results
provided a better performance compared with the Conventional Mobile IP Technique. In this paper the
simulator will be used to study the performance of the (ISP MBG) technique using two different Internet
Service Providers ( ISPs) structures separated by a single Mobile Border Gateway ( MBG).Simulation
results shows also a better performance compared with the conventional Mobile IP technique .
multivariable nonlinear coupling system. The conventional controller with constant gains for different
operating points may not be sufficient to guarantee satisfactory performance for Robot manipulator. The
Fuzzy Logic Controller utilizes the error and the change of error as fuzzy linguistic inputs to regulate the
system performance. The proposed controller have been developed to simulate the dynamic behavior of A
Two-Link Functional Manipulator. The new controller uses only the available information of the inputoutput
for controlling the position and velocity of the robot axes of the motion of the end effectors
Teaching Documents by sherif kamel