Papers by Azeddien M . Sllame
The 3rd IEEE International Workshop on System-on-Chip for Real-Time Applications, 2003. Proceedings.
ABSTRACT
Proceedings Euromicro Symposium on Digital System Design. Architectures, Methods and Tools
ABSTRACT
2022 IEEE 2nd International Maghreb Meeting of the Conference on Sciences and Techniques of Automatic Control and Computer Engineering (MI-STA), 2022
In this paper, an analysis study is carried out by GNS3
as a modeling and simulation environment... more In this paper, an analysis study is carried out by GNS3
as a modeling and simulation environment with a Wireshark tool
to investigate the reactions taken inside MPLS networks such as
path reestablishment and timing (network convergence) of
fail/reconnection/rerouting. However, two practical scenarios
have been built with an MPLS network; one employs OSPF while
the other works with IS-IS as routing protocols to examine their
responses and behaviors during link and node failure.
The results showed that IS-IS recorded better results than
OSPF in network convergence with MPLS networks.
4th IEEE International Workshop on System-on-Chip for Real-Time Applications
ABSTRACT
In proc. of IFAC Workshop on Programmable Devices and Systems Conference PDS’03, Ostrava,, 2003
Scheduling is the most important task in high-level synthesis process, while pipelining is highly... more Scheduling is the most important task in high-level synthesis process, while pipelining is highly important for realising high-performance digital components. This paper presents a pipeline list-based scheduling algorithm, which performs forward and backward pipelining. The forward priority function is based on incorporating some information extracted from data flow graph (DFG) structure to guide the scheduler to find near-optimal/optimal schedules quickly. The algorithm has a flexible procedure cycle, which allows designers to make efficient area-performance trade-offs by using different strategies employed. Designers can choose between doing forward / backward pipelining with or without resource sharing combined with clock cycle selection, pipe stage delay determination. Experimental results with standard benchmarks show the effectiveness of the proposed algorithm.
This paper describes designing an efficient mesh topology Network-on-Chip system by employing MPL... more This paper describes designing an efficient mesh topology Network-on-Chip system by employing MPLS protocol as an on-chip communication technique. A discrete-event simulator is developed in C++ to show the applicability of MPLS in providing efficient on-chip communication for multicore processing system-on-chip designs. Experimental results are compared with two simulators: wormhole equipped with virtual channels; and MPLS-based fat tree network-on-chip systems. Outstandingly, MPLS as on-chip communication means recorded better results than the wormhole +virtual channels in terms of throughput and packet end-to-end delay (latency).
The Future of Accessibility in International Higher Education, 2017
The use of the communication and information technology tools can aid students in their lab work ... more The use of the communication and information technology tools can aid students in their lab work to add more flexibility to the accessibility and providing of up-to-date higher education allowing students accessing knowledge anytime, anywhere which will facilitate the lifelong learning and provide accessibility to the curriculum and other students' resources from anywhere at any time. Laboratory work by students in the information technology and engineering fields of study is a must requirement in all accreditation agencies and targeted employment places. This chapter demonstrates a project based learning technique that has been integrated with ordinary classes in computer network courses. The tools used in this study concentrates on the modeling and simulation of different aspect of computer networking that highlight different skills needed to any computer network engineer.
This paper describes a Fat tree based Network-on-Chip system using MPLS networking technique. A d... more This paper describes a Fat tree based Network-on-Chip system using MPLS networking technique. A discrete-event simulator has been developed in C++ in in order to demonstrate the applicability of the MPLS to Network-on-Chip systems. The correctness and the efficiency of the MPLS based Fat network-on-chip system is measured against well-known wormhole with virtual channels technique. The results of the MPLS-based NoC in terms of throughput and latency are clearly proves the applicability of the MPLS to implement future NoC designs.
Intelligent Wireless Communications, 2021
2021 IEEE 1st International Maghreb Meeting of the Conference on Sciences and Techniques of Automatic Control and Computer Engineering MI-STA, 2021
A denial of service attacks are usually employed to interrupt the system's activity by gettin... more A denial of service attacks are usually employed to interrupt the system's activity by getting a large number of fake requests, which leads to slowing down and stopping information system or network operations. This paper outlines the basic principles of DDoS attacks, explains how DDoS attack works. The paper presents an experimental using OPNET simulation tool in which traffic from three different applications VoIP, FTP, and HTTP is used to make the practical model with a firewall shield to model and simulate DDoS over Internet. However, three scenarios have been developed to illustrate different aspects of the DDoS over networks. The results clearly demonstrate how firewalls can be configured to mitigate DDoS attacks.
2021 IEEE 1st International Maghreb Meeting of the Conference on Sciences and Techniques of Automatic Control and Computer Engineering MI-STA, 2021
This paper describes the place of MPLS in current state-of-the-art networking as a quality of ser... more This paper describes the place of MPLS in current state-of-the-art networking as a quality of service means through performing performance analysis of VoIP and video conferencing applications by comparing the effect of different protocols (OSPF, IS-IS, EIRGP) and the effect of various queuing techniques (PQ, WFQ, MWRR) in order to find the good combination of MPLS, routing, and queuing type that provides efficient suitable quality of service levels. The obtained results illustrate a competent combination of MPLS with queuing discipline, and routing could be achieved for each application, such as MPLS and EIGRP with WFQ queuing is an efficient arrangement for video conferencing application.
IFAC Proceedings Volumes, 2003
Abstract Scheduling is the most important task in high-level synthesis process, while pipelining ... more Abstract Scheduling is the most important task in high-level synthesis process, while pipelining is highly important for realising high-performance digital components. This paper presents a pipeline list-based scheduling algorithm, which performs forward and backward pipelining. The forward priority function is based on incorporating some information extracted from data flow graph (DFG) structure to guide the scheduler to find near-optimal/optimal schedules quickly. The algorithm has a flexible procedure cycle, which allow designers to make efficient area-performance trade-offs by using different strategies employed. Designers can choose between doing forward / backward pipelining with or without resource sharing combined with clock cycle selection, pipe stage delay determination. Experimental results with standard benchmarks show the effectiveness of the proposed algorithm.
Proceedings of the 1st International Workshop on Advanced Interconnect Solutions and Technologies for Emerging Computing Systems - AISTECS '16, 2016
This paper describes a proposal for FAT tree based Network-on-Chip system based on MPLS forwardin... more This paper describes a proposal for FAT tree based Network-on-Chip system based on MPLS forwarding mechanism. The FAT tree includes processing nodes and communication switches. IP node (processing nodes) has a message generator unit which randomly generates messages to different destinations with different packet lengths and buffering. The switch is based on MPLS technique and consists of the following units: crossbar switch, input/output link controllers and routing and arbitration units. A simulator has been developed in C++ to analyze the proposed architecture. A comparison with wormhole switch is provided to show the efficiency of the MPLS designed switch.
Lecture Notes in Computer Science, 2000
... to Design of Evolvable Hardware Based Systems Luká Sekanina and Azeddien M. Sllame ... Best ... more ... to Design of Evolvable Hardware Based Systems Luká Sekanina and Azeddien M. Sllame ... Best Connection Unit (BCU), which keeps the best chromosome and its fitness, saves current connection (chromosome) as well as fitness if cur-rent fitness is the best one. ...
2013 International Conference on IT Convergence and Security (ICITCS), 2013
This paper describes the benefit of using modeling and simulation tools to aid educational proces... more This paper describes the benefit of using modeling and simulation tools to aid educational process in teaching computer network engineers. These techniques motivate students and encourage them to be original and creative. The obtained results are promising to reduce the gap between the education in universities and real work environments. This in turn makes students prepared to face real-world problem during their future real jobs. Packet tracer, GNS2, OPNET, and fat-tree simulator tools are used in this paper.
The 2014 International Symposium on Networks, Computers and Communications, 2014
ABSTRACT
This paper describes performance evaluation of multimedia data streaming over IP and MPLS network... more This paper describes performance evaluation of multimedia data streaming over IP and MPLS networks using OPNET simulation tools. The experimental study is carried out by employing VOIP and video streaming applications in both networks with same parameters; but with different routing mechanisms. Therefore, same network model scenario is built with MPLS and TCP/IP networks by replacing MPLS routers by normal IP routers running OSPF routing and disabling MPLS functions. Furthermore, the evaluation process is done using three different queuing mechanisms; namely (FIFO, PQ, and WPQ) with the following performance parameters: the delay jitter (sec), packet delay variation, packet end-to-end delay (sec), and number of packets sent/received which indicates the traffic load, bandwidth and throughput for both networks. Results obtained are clear evidence that the MPLS networks are much appropriate for multimedia applications than conventional IP networks.
this paper describes performance evaluation of VoIP over IP/MPLS networks using OPNET tool. The s... more this paper describes performance evaluation of VoIP over IP/MPLS networks using OPNET tool. The simulation study is completed by running VoIP application in different network scenarioswith different interior routing protocols; namely: RIP, OSPF and EIGRP and with different queuing techniques to measure quality of service. However, the main network model is built of TCP/IP routers with MPLS routers in the core of the network case study (middle). This model enables different TCP/IP networks communicating to each other through the MPLS core routers. The following performance parameters: the delay (jitter) (sec), packet delay variation, packet end-to-end delay (sec), and number of packets sent/received are used to compare the efficiency of different networks.
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Papers by Azeddien M . Sllame
as a modeling and simulation environment with a Wireshark tool
to investigate the reactions taken inside MPLS networks such as
path reestablishment and timing (network convergence) of
fail/reconnection/rerouting. However, two practical scenarios
have been built with an MPLS network; one employs OSPF while
the other works with IS-IS as routing protocols to examine their
responses and behaviors during link and node failure.
The results showed that IS-IS recorded better results than
OSPF in network convergence with MPLS networks.
as a modeling and simulation environment with a Wireshark tool
to investigate the reactions taken inside MPLS networks such as
path reestablishment and timing (network convergence) of
fail/reconnection/rerouting. However, two practical scenarios
have been built with an MPLS network; one employs OSPF while
the other works with IS-IS as routing protocols to examine their
responses and behaviors during link and node failure.
The results showed that IS-IS recorded better results than
OSPF in network convergence with MPLS networks.