E NGN Research Group

South Africa

E NGN Research Group

South Africa
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El Hissi Y.,Hassan 1st University | Haqiq A.,Hassan 1st University | Haqiq A.,e NGN Research Group
Communication, Management and Information Technology - Proceedings of the International Conference on Communication, Management and Information Technology, ICCMIT 2016 | Year: 2017

The context of current governance necessitates the collection, processing and sharing of information allowing organizations to develop their methods of management and decision making. Managing the process of scientific research in the Moroccan university uses the information technology to promote its activities and enhance its performance. We must be certain of tools and elements that provide us with that information, means that allow its conservation and protection and ensure the channels involved in its dissemination and communication. Information System as a technology carrier compound of this information, it must be well protected and secured for any technical threat, physical or logical. And so, this article deals with the research and design of tools and reliable and effective means for securing the Information System used in the scientific research activity; if necessary, the management system of information security based on ISO 27001. This in order to meet the management requirements, communication and security of scientific research in Moroccan universities. © 2017 Taylor & Francis Group, London.


Anouari T.,Hassan 1st University | Haqiq A.,Hassan 1st University | Haqiq A.,E NGN Research Group
International Conference on Multimedia Computing and Systems -Proceedings | Year: 2014

Motivated by the increasing demand for multimedia services in the internet broadband networks, WiMAX (Worldwide Interoperability for Microwave Access) technology has emerged as a competitive alternative to wired networks broadband. WiMAX is used today as a method of transmission and high-speed internet access, covering a wide geographical area. Unlike DSL (Digital Subscriber Line) or other wired technology. In parallel, it was observed that in the difference of the traditional quality evaluation approaches, nowadays, current researches focus on the user perceived quality, the existing scheduling approaches take into account the quality of service (QoS), mobility and many other parameters, but do not consider the Quality of Experience (QoE). In this paper, we develop a scheduling algorithm to provide QoE in WiMAX network and improve its performances by controlling the packet transmission rate so as to match with the minimum subjective rate requirements of each user. A novel approach is proposed, especially for the Best Effort (BE) WiMAX service class. Simulation results on NS-2 simulator show that by applying various levels of MOS (Mean Opinion Score) the QoE provided to the users is enhanced in term of jitter, packet loss rate, throughput and delay. © 2014 IEEE.


Maarouf A.,Hassan 1st University | Marzouk A.,Hassan 1st University | Haqiq A.,Hassan 1st University | Haqiq A.,E NGN Research Group
International Conference on Intelligent Systems Design and Applications, ISDA | Year: 2016

Research in Service level agreements has been of growing interest in the Cloud Computing field. This is due to its pivotal role in solving the trade-off between the benefit of the provider and the interest of the customer. Every SLA has a life cycle and a life time to be managed. The life cycle of SLA consists of several stages that vary according to the SLA. In this paper, we present SLA life cycle in light of the cloud computing domain. The presented SLA life cycle define the sequence of changes of the SLA from the perspective of all parties involved in the contract. Some examples for SLA life cycle are illustrated, in order to show the main phases, structures, processes and entities interactions using UML modeling diagrams. The goal of each phase, the participating actors and their role, the potential dependencies as well as the outcomes of each phase are described in this work. © 2015 IEEE.


Anouari T.,Hassan 1st University | Haqiq A.,Hassan 1st University | Haqiq A.,E NGN Research Group
International Conference on Next Generation Networks and Services, NGNS | Year: 2014

WiMAX, the acronym for Worldwide Interoperability for Microwave Access is a set of technical standards based on IEEE 802.16 standard. It provides an internet connection to broadband coverage area of several kilometers in radius, it's an adequate response to some rural or inaccessible areas. Unlike DSL (Digital Subscriber Line) or other wired technology, WiMAX uses radio waves and can provide point-to-multipoint (PMP) and point-to-point (P2P) modes. In parallel, it was observed that in the contrast of the traditional quality evaluation approaches, nowadays, current researches focus on the user perceived quality, the existing scheduling approaches take into account the quality of service (QoS), mobility and many other parameters, but do not consider the quality of experience (QoE). In this paper, we develop a scheduling algorithm to provide QoE to the WiMAX network. A novel approach is proposed, especially for the Best Effort (BE) WiMAX service class, in this approach if there has been a packet loss on a connection, the system reduces the transmission rate of this connection, until achieving its minimum allowable transmission rate. Simulation results on NS-2 simulator show that by applying various levels of mean opinion score (MOS) the QoE provided to the users is enhanced in term of throughput, jitter, packet loss rate and delay. © 2014 IEEE.


Talbi J.,Hassan 1st University | Haqiq A.,Hassan 1st University | Haqiq A.,E NGN Research Group
Proceedings of 2015 International Conference on Cloud Computing Technologies and Applications, CloudTech 2015 | Year: 2015

Cloud computing is the promising technology that provides computational, storage, network and database resources by employing the virtualization technology in the infrastructure layer. Nowadays, most of the applications are hosted in the multi-tenant based virtualized cloud environment. Scalability is the challenging task in this environment for effective utilization of the resources and to improve the profit of the cloud service providers. Recently, the companies and enterprises are tried to realize the scalability in terms of application, platform, database and infrastructure level. Thus, to solve the scalability issue, we propose an approach for improving the process of resource monitoring and management in large cloud datacenters by applying a quantitative methodology based on clustering techniques that measure the similarity between virtual machines (VMs) behaviors in terms of resource utilization. This model will help administrators to make decision about the management of resources in IaaS cloud systems. © 2015 IEEE.


Saadi Y.,Hassan 1st University | Nassereddine B.,Hassan 1st University | Haqiq A.,E NGN Research Group
International Conference on Next Generation Networks and Services, NGNS | Year: 2014

Blind Flooding is the simplest broadcasting operation used in a wireless mesh network (WMN) based IEEE 802.11s. However such mechanism can significantly degrade the network performance due to the considerable amount of broadcast traffic a WMN may face. Actually, routing relies heavily on layer two broadcasting and WMNs may bridge wired networks which deploy many broadcasting based application. In previous work we have designed an adaptive approach to control the forwarding of flooded messages into the mesh. The main focus of our previous simulations was to simulate the flooding process in wireless mesh network routing protocol, namely Hybrid Wireless Mesh Protocol (HWMP), which is using Blind Flooding. Generally, the results have shown a considerable amelioration of the network capacity specially with scaling. In this paper we evaluate our scheme, namely Control of Broadcast Forwarding (CBF), in comparison with Blind Flooding protocol. Our protocol is a self pruning algorithm where each node decides itself if or not to rebroadcast a flooded message based on packet type information element and 2-hop neighborhood knowledge. Simulations results show a significant reduction of broadcast cost while improving slightly the average end to end delay. © 2014 IEEE.


Elhissi Y.,Hassan 1st University | Haqiq A.,Hassan 1st University | Haqiq A.,E NGN Research Group
2016 International Conference on Information Technology for Organizations Development, IT4OD 2016 | Year: 2016

In a context of E-Governance and modernization of higher education, the Moroccan University is facing new challenges, such as: - Orientation, development and promotion of scientific research that meets the needs of the socio-economic environment and therefore affects the lives of citizens. - Developing the culture of communication and information by ending practices that limit the dissemination of information. Moroccan strategy for the development of higher education has focused all its projects on the use of new technologies for the management and structuring of research, and the promotion and enhancement of its activities. To this end, the establishment of an information system for the management and communication of research in the university can organize all the research activities, structure research units on an administrative and financial sides it can also communicate its work to enhance the sharing and open a window of partnership with its socio-economic environment. This work aims to develop an information system for management, information security and communication research in the Moroccan university. This system will allow collecting, classification, processing and disseminating information related to scientific research at the university in order to organize and structure all its activities. It will also enable all university's actors to use a digital workspace to access and share information, and therefore interact and get involved in the promotion of scientific research at the university. © 2016 IEEE.


Talbi J.,Hassan 1st University | Haqiq A.,Hassan 1st University | Haqiq A.,E NGN Research Group
CEUR Workshop Proceedings | Year: 2015

Cloud computing is becoming a key factor in computer science. It represents a new paradigm of utility computing and enormously growing phenomenon in the present IT industry and economy hype. The cloud users (CUs) increase and require secure, reliable and trustworthy cloud service providers (CSPs) from the market. It's a challenge for a new customer to choose the highly secure provider. In this paper, we propose a cloud broker that analyze and rank the cloud service providers based on measuring the risks of confidentiality, integrity and availability. This model uses a CSP Rank Framework for the group of cloud providers by assessing security metrics which make decision of the more secure provider among all providers and justify the business needs in terms of security and reliability.


Anouari T.,Hassan 1st University | Haqiq A.,Hassan 1st University | Haqiq A.,E NGN Research Group
Mediterranean Microwave Symposium | Year: 2015

In response to the growing demand of broadband wireless access, the WiMAX (Worldwide Interoperability for Microwave Acces) technology has emerged as an alternative to the wired broadband access solutions. It provides an Internet connection to broadband coverage area of several kilometers in radius and incorporate several quality of service (QoS) mechanisms at the Media Access Control (MAC) level for guaranteed services like data, voice and video. Unlike DSL (Digital Subscriber Line) or other wired technology, WiMAX uses radio waves and can provide Point-to-Multipoint (PMP) and mesh modes. In parallel, it can be noticed that in contrast of the usual quality evaluation approaches, nowadays, current researches focus on the user perceived quality, the available scheduling approaches take into account the QoS and other parameters, but do not consider the Quality of Experience (QoE). In this paper, we propose a QoE-based scheduling solution in WiMAX network in order to control the packet transmission rate so as to match with the minimum subjective rate requirements of each connection, this makes the scheduling based on the use of QoE metrics. The target of this improvement is to schedule traffic of the Unsolicited Grant Service (UGS) and the Real-Time Polling Service (rtPS) service classes. Simulation results show that by applying various levels of mean opinion score (MOS) the QoE provided to the users is improved in term of throughput, jitter, packet loss rate and delay. © 2014 IEEE.


Anouari T.,Hassan 1st University | Haqiq A.,Hassan 1st University | Haqiq A.,e NGN Research Group
International Conference on Next Generation Networks and Services, NGNS | Year: 2012

The Worldwide Interoperability for Microwave Access (WiMAX) is a set of technical standards based on IEEE 802.16 standard, WiMAX is an alternative solution for the deployment of broadband networks in the territories, whether or not covered by other technologies such as ADSL or cable. It provides flexibility in network deployment options and service and supports point-to-multipoint (PMP) and Mesh mode. In parallel, VoIP is a technique that allows communicating by voice over IP compatible networks, one of the main advantages of VoIP is its ability to reduce costs, it becomes an alternative to public switched telephone. Voice traffic is highly delay intolerant and it needs a high priority transmission. In this paper, we investigate the performances of the most common VoIP codecs, named as G.711, G.723.1 and G.729 using Best Effort, UGS, rtPS, ertPS and nrtPS service classes and NOAH routing protocol. NS-2 simulator is used to analyze the QoS parameters. The objective is to compare different WiMAX's service classes with respect to the QoS parameters, such as, average jitter, throughput and average delay. © 2012 IEEE.

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