jehad Al-Sadi - Academia.edu (original) (raw)

Papers by jehad Al-Sadi

... BibTeX | Add To MetaCart. @MISC{Abu-shawar_aouexperience, author = {Bayan Abu-shawar and Jeha... more ... BibTeX | Add To MetaCart. @MISC{Abu-shawar_aouexperience, author = {Bayan Abu-shawar and Jehad Al ... A description of integrating the learning management system with other electronic systems such as student information system and human resource system is discussed. ...

Abstract- This paper follows the progress of improving

Ninth International Conference on Parallel and Distributed Systems, 2002. Proceedings.

This paper describes the new fault-tolerant routing algorithm for k-ary n-cubes using the concept... more This paper describes the new fault-tolerant routing algorithm for k-ary n-cubes using the concept of &amp;quot;probability vectors&amp;quot;(2) and conducts an extensive performance analysis for the new algorithm. To compute these vectors, a node determines first its faulty set, which represents the set of all its neighbouring nodes that are faulty or unreachable due to faulty links. Each node then calculates

Proceedings of the 2002 ACM symposium on Applied computing - SAC '02, 2002

Algorithmic Mathematics and Computer Science, 2005

Abstrac t: This paper proposes the first fault tolerant routing algorithm for the Extended Otis C... more Abstrac t: This paper proposes the first fault tolerant routing algorithm for the Extended Otis Cube interconnection network referred to as the EOC which is constructed from multiplying the hypercube as a factor network by it self. In this paper we utilize the features of OTIS networks which use both of electronic and optical networks. The Hypercube; cube for short;

Parallel and Distributed Processing Techniques and Applications, 1999

... JEHAD ALSADI Computer Science Department Zarka Private University Zarka, Jordan e-mail: jehad... more ... JEHAD ALSADI Computer Science Department Zarka Private University Zarka, Jordan e-mail: jehad@computer.org KHALED DAY Computer Science Department Sultan Qaboos University Muscat, Sultanate of Oman e-mail: kday@squ.edu.om MOHAMED OULD-KHAOUA ...

Concurrency and Computation: Practice and Experience, 2015

The Optical Transpose Interconnection System (OTIS) optoelectronic interconnection network archit... more The Optical Transpose Interconnection System (OTIS) optoelectronic interconnection network architecture is a promising attraction in the new era of parallel computing topologies because of its attractive topological properties. Recently, many enhancements were presented on OTIS topologies including the Extended OTISn-Cube interconnection networks. Therefore, all performance improvement characteristics of such a promising architecture need to be investigated; one of which is load balancing technique. This paper focuses on developing an efficient algorithm for load balancing on the promising Extended OTIS-n-Cube interconnection networks. The proposed algorithm is called Factor-Optical-Factor Exchange Model. Furthermore, this paper presents theoretical and experimental study on the proposed algorithm in terms of various parameters including execution time, load balancing accuracy, number of communication steps, and speed. Results show superiority of the proposed algorithm over the well-known Clustered Dimension Exchange Method (CDEM) algorithm in terms of execution time, number of communication steps, and speed, while maintaining the same level of accuracy.

The star network is one of the promising interconnection networks for future high speed... more The star network is one of the promising interconnection networks for future high speed parallel computers, it is expected to be one of the future-generation networks. The star network is both edge and vertex symmetry, it was shown to have many gorgeous topological proprieties also it is owns hierarchical structure framework. Although much of the research work has been done on this promising network in literature, it still suffers from having enough algorithms for load balancing problem. In this paper we try to work on this issue by investigating and proposing an efficient algorithm for load balancing problem for the star network. The proposed algorithm is called Star Clustered Dimension Exchange Method SCDEM to be implemented on the star network. The proposed algorithm is based on the Clustered Dimension Exchange Method (CDEM). The SCDEM algorithm is sho...

This paper proposes a new fault-tolerant routing algorithm for the well-known class of networks, ... more This paper proposes a new fault-tolerant routing algorithm for the well-known class of networks, OTIS-cube. In this new proposed algorithm, each node A starts by computing the first level unsafety set, S1 A, composed of the set of unreachable direct neighbours. It then performs m-1 exchanges with its neighbours to determine the k-level unsafety sets Sk A, for all 1 ≤ k ≤ m, where m is an adjustable parameter between 1 and 2n + 1. The k-level unsafety set at node A represents the set of all faulty nodes at Hamming distance k from A, which either faulty or unreachable from A due to faulty nodes or links. Equipped with these unsafety sets, we show how each node calculates numeric unsafety vectors and uses them to achieve efficient faulttolerant routing. Keywords: Interconnection networks, OTIS-cube, fault-tolerant routing algorithm, safety vectors.

This paper introduces theoretical and practical study on embedding Hamiltonian cycle in the Exten... more This paper introduces theoretical and practical study on embedding Hamiltonian cycle in the Extended OTIS-n-Cube. A generalized Algorithm is also presented for embedding Hamiltonian cycle in the Extended OTIS-n-Cube. The recently proposed network has many good topological features such as regular degree, semantic structure, low diameter, and ability to embed graphs and cycles. Embedding Hamiltonian cycle is an important characteristic for any topology due to the usefulness of undertaking different types of broadcasting messages within interconnection networks. The proposed algorithm is capable to form a Hamiltonian cycle starting from any node in the network. Examples are presented on different network sizes showing complete paths of Hamiltonian cycles.

International Journal of Information Systems and Social Change, 2017

The Hyper Hexa-Cell topology; HHC for short; is a new interconnection network topology that has m... more The Hyper Hexa-Cell topology; HHC for short; is a new interconnection network topology that has many attractive topological properties compared to other traditional topologies. There have been a number of studies in the literature on the HHC to explore the promising topological properties of this topology. Furthermore, other studies extend this topology by combining it with OTIS technology to produce a new version called OHHC. We have found that there is a lake of presenting any point to point routing algorithm for the HHC, although there were some efforts on building routing algorithms for the OHHC. To cover this shortage, this paper introduces a new unicast routing algorithm for the HHC. The new routing algorithm for the HHC uses store-and-forward technique which allows a message to be transmitted through a path from the source node to the destination node. In addition to presenting the routing algorithm, we present an example to explore the algorithm steps and also an enhancement...

Proceedings of the 10th Wseas International Conference on Communications Electrical Computer Engineering and 9th Wseas International Conference on Applied Electromagnetics Wireless and Optical Communications, Mar 24, 2011

This paper introduces a complete description of constructing a Hamiltonian cycle in the Extended ... more This paper introduces a complete description of constructing a Hamiltonian cycle in the Extended OTIS-n-Cube topology. The recently proposed network has many good topological features such as regular degree, semantic structure, low diameter, and ability to embed graphs and cycles. Constructing a Hamiltonian cycle is an important feature for any topology due to the importance of broadcast messages within networks. This paper proposes an algorithm to form a Hamiltonian cycle in the extended OTIS-n-Cube Interconnection network. Examples are also presented in different network sizes to show how Hamiltonian cycles are constructed.

This paper investigates the move to a new era of learning by using mobility technology. M-learnin... more This paper investigates the move to a new era of learning by using mobility technology. M-learning is distinct in its focus on learning across contexts and learning with mobile devices. It takes advantage of learning opportunities offered by using mobile devices and wireless transmission to enhance the existing learning management systems (LMS) that can potentially provide important opportunities for learning and collaborative interaction. Moodle is one of the most attractive LMS around the world due to its outstanding features and reliability. Although portable technology offered anywhere-anytime discussions, the technical problems encountered when using the WAPenabled phones hindered participation in the ediscussions. In addition to presenting technical aspects of the WAP, the paper also introduce the advantages and disadvantages of using mobile technology in the learning process. Furthermore, this paper discusses the suitability and feasibility of using WAP technology devices for distance learning in real-time.

Csreaeee, 2007

Monodisperse latexes having a particle size in the range of 2 to 40 microns are prepared by seede... more Monodisperse latexes having a particle size in the range of 2 to 40 microns are prepared by seeded emulsion polymerization in microgravity. A reaction mixture containing smaller monodisperse latex seed particles, predetermined amounts of monomer, emulsifier, initiator, inhibitor and water is placed in a microgravity environment, and polymerization is initiated by heating. The reaction is allowed to continue until the seed particles grow to a predetermined size, and the resulting enlarged particles are then recovered. A plurality of particle-growing steps can be used to reach larger sizes within the stated range, with enlarged particles from the previous steps being used as seed particles for the succeeding steps. Microgravity enables preparation of particles in the stated size range by avoiding gravity-related problems of creaming and settling, and flocculation induced by mechanical shear that have precluded their preparation in a normal gravity environment.

This paper presents a complete description of the improvements that have been conducted for the l... more This paper presents a complete description of the improvements that have been conducted for the learning management system at Arab Open University. AOU is the first regional university for open learning in the Middle East and North Africa. The university has strict regulations on the learning process to assure the quality of delivering all learning activities in an optimal way. Accordingly, there is a need to improve the existing learning management system to guarantee the implementation of such quality assurance regulations electronically to save time and cost and to perform all required procedures. In addition of describing the improvements, this paper also conducts a comparison between conforming with such regulations manually and the new online procedures over the learning management system.

2012 IEEE 11th International Conference on Trust, Security and Privacy in Computing and Communications, 2012

The new era of the OTIS (Optical Transpose Interconnection System) optoelectronic interconnection... more The new era of the OTIS (Optical Transpose Interconnection System) optoelectronic interconnection network architecture is a promising and an interesting alternative for future-generation parallel processing systems. Many enhancements were presented on OTIS topologies included the Extended OTIS-n-Cube interconnection networks. Therefore, all performance improvement characteristics of such a promising architecture need to be investigated; one of which is load balancing technique. This paper focuses on devising an efficient algorithm for load balancing on the promising Extended OTIS-n-Cube interconnection networks. The proposed algorithm is called Factor-Optical-Factor Exchange Model (FOFEM). The proposed algorithm in terms of various parameters, including execution time, load balancing accuracy, number of communication steps, and speed is introduced on OTIS-n-Cube interconnection networks is efficient since it can reach the load balancing final state in 2n+1 communication steps.

International Conference on E-Business, Enterprise Information Systems, E-Government, and Outsourcing, 2006

This paper follows the progress of improving the Arab Open University's Learning Management S... more This paper follows the progress of improving the Arab Open University's Learning Management System by integrating it with other online systems, such as the university's Student Information System and the Human Resource System. A complete description of the open source learning management system, Moodle, and the benefits of adapting open source platforms is presented. The paper also presents in detail

2012 Second International Conference on Digital Information and Communication Technology and it's Applications (DICTAP), 2012

in this paper, we propose a new attractive interconnection network called Extended OTIS-Arrangeme... more in this paper, we propose a new attractive interconnection network called Extended OTIS-Arrangement network which is constructed from the cross product of the factor Arrangement network. This paper utilizes the features of Optical Transpose Interconnection Systems (OTIS) networks which use both of electronic and optical technologies. The network overcomes the weak point of some restrictions found in the known OTIS-Arrangement Network such as the degree and the diameter. This paper investigates the topological properties of the new interconnection network by presenting some attractive topological properties of the Extended OTIS-Arrangement interconnection network. The paper also presents a comparative analysis proving the superiority of the proposed network over the factor OTIS-Arrangement network. The comparison is obtained in terms of topological properties of diameter, node degree, with a low percentage of extra links.

International Journal of Grid and High Performance Computing, 2011

Recent studies have revealed that the Optical Transpose Interconnection Systems (OTIS) are promis... more Recent studies have revealed that the Optical Transpose Interconnection Systems (OTIS) are promising candidates for future high-performance parallel computers. This paper presents and evaluates a general method for algorithm development on the OTIS-Arrangement network (OTIS-AN) as an example of OTIS network. The proposed method can be used and customized for any other OTIS network. Furthermore, it allows efficient mapping of a wide class of algorithms into the OTIS-AN. This method is based on grids and pipelines as popular structures that support a vast body of parallel applications including linear algebra, divide-and-conquer types of algorithms, sorting, and FFT computation. This study confirms the viability of the OTIS-AN as an attractive alternative for large-scale parallel architectures.