Alakhawayn University in Ifrane

Ifrane, Morocco

Alakhawayn University in Ifrane

Ifrane, Morocco

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El Khaddar M.A.,SIME Laboratory | Chraibi M.,Alakhawayn University in Ifrane | Harroud H.,Alakhawayn University in Ifrane | Boulmalf M.,International University of Rabat | Elkoutbi M.,SIME Laboratory
International Journal of Pervasive Computing and Communications | Year: 2015

Purpose – This paper aims to demonstrate that a policy-based middleware solution which facilitates the development of context-aware applications and the integration of the heterogeneous devices should be provided for ubiquitous computing environments. Ubiquitous computing targets the provision of seamless services and applications by providing an environment that involves a variety of devices having different capabilities. These applications help transforming the physical spaces into computationally active and smart environments. The design of applications in these environments needs to consider the heterogeneous devices, applications preferences and rapidly changing contexts. The applications, therefore, need to be context-aware so that they can adapt to different situations in real-time. Design/methodology/approach – In this paper, we argue that a policy-based middleware solution that facilitates the development of context-aware applications and the integration of the heterogeneous devices should be provided for ubiquitous computing environments. The middleware allows applications to track items and acquire contextual information about them easily, reason about this information captured using different logics and then adapt to changing contexts. A key issue in these environments is to allow heterogeneous applications to express their business rules once, and get the preferred data once they are captured by the middleware without any intervention from the application side. Findings – Our middleware tackles this problem by using policies to define the different applications’ rules and preferences. These policies can specify rules about the middleware services to be used, type of data captured, devices used, user roles, context information and any other type of conditions. Originality/value – In this paper, we propose the design of a flexible and performant ubiquitous computing, and context-aware middleware called FlexRFID along with its evaluation results. © Emerald Group Publishing Limited.


Abid M.R.,Alakhawayn University in Ifrane | Khallaayoun A.,Alakhawayn University in Ifrane | Harroud H.,Alakhawayn University in Ifrane | Lghoul R.,Alakhawayn University in Ifrane | And 2 more authors.
IEEE Green Technologies Conference | Year: 2013

Future Smart Grids will consist of distributed Micro-Grids where the Advanced Metering Infrastructure (AMI) forms a central component. This consists basically of meters/sensors that are regularly communicating data towards/from a central Control Plane. Due to the ad-hoc topological nature of the meters/sensors, particularly in residential areas, Wireless Mesh Networks (WMNs) prove to be the ideal technology for AMI deployment. In this paper, we propose a wireless mesh network based architecture for AMI deployment that uses both Zigbee and IEEE 802.11. The paper presents the challenges and opportunity related to implementing such architecture in Moroccan market. This paper proposes a framework for renewable energy integration, and an appropriate Middleware design. The paper presents preliminary simulations on the wireless coexistence between the two technologies and draw conclusions on the channel to be used and node placement problems. © 2013 IEEE.


El Khaddar M.A.,Mohammed V University | Chraibi M.,Ecole Mohammedia des Ingenieurs | Harroud H.,Alakhawayn University in Ifrane | Boulmalf M.,International University of Rabat | And 2 more authors.
Proceedings of 2014 Science and Information Conference, SAI 2014 | Year: 2014

RFID and WSN technologies are widely used in today's pervasive computing. In Wireless Sensor Networks, sensor nodes sense the physical environment and send the sensed data to the sink by multi-hops. WSN are used in many applications such as military and environment monitoring. In Radio Frequency Identification, a unique ID is assigned to a RFID tag which is associated with a real world object. RFID applications cover many areas such as Supply Chain Management (SCM), healthcare, library management, automatic toll collection, etc. The integration of both technologies will bring many advantages in the future of ubiquitous computing, through the provision of real-world tracking and context information about the objects. This will increase considerably the automation of an information system. In order to process the large volume of data captured by sensors and RFID readers in real time, a middleware solution is needed. This middleware should be designed in a way to allow the aggregation, filtering and grouping of the data captured by the hardware devices before sending them to the backend applications. In this paper we demonstrate how our middleware solution called FlexRFID handles large amount of RFID and sensor scan data, and executes applications' business rules in real time through its policy-based Business Rules layer. The FlexRFID middleware provides easy addition and removal of hardware devices that capture data, as well as uses the business rules of the applications to control all its services. We demonstrate how the middleware controls some defined healthcare scenarios, and deals with the access control security concern to sensitive healthcare data through the use of policies. © 2014 The Science and Information (SAI) Organization.


Abid M.R.,Alakhawayn University in Ifrane | Biaz S.,Auburn University
Computing | Year: 2015

Airtime is set as the default routing metric for the ongoing IEEE 802.11s wireless mesh networking standard. The metric is designed to minimize channel resource consumption by accounting for loss rate, bandwidth, and channel characteristics. However, the metric exhibits a noticeable ping–pong effect whose nature is still vague, and the very few references to this in the literature condemn it for being a perilous behavior. In this paper, we present a thorough study of the Airtime ping–pong effect, and highlight its correlation to the underlying rate control algorithms. Using different rate control algorithms (e.g., ARF, AARF, ONOE, AMRR and Constant rate), we establish that transmission rate adaptation is the principal cause behind the effect. We show that the effect is an inherent behavior, and that an accurate characterization of it can help improve network performance. We present a ping–pong-aware mechanism that, by detecting when a link undergoes such an effect, adapts the routing protocol for better network performance. The mechanism is O(1), decentralized, and can be easily integrated into the IEEE 802.11s routing protocol. © 2013, Springer-Verlag Wien.


Merabet G.H.,Mohammed V University | Essaaidi M.,Mohammed V University | Talei H.,Alakhawayn University in Ifrane | Abid M.R.,Alakhawayn University in Ifrane | And 3 more authors.
International Conference on Multimedia Computing and Systems -Proceedings | Year: 2014

The Smart Grids (SGs) are regarded as the new generation of electric power systems, combining the development of Information Technology (IT), distributed systems and Artificial Intelligence (AI) for more features on the real-time monitoring of the Demand /Response (DR) and the energy consumption. An approach based on the use of Multi-Agent Systems (MAS) to study the management of distribution systems, simulating the characteristics of SG. This paper presents the different platforms used for the implementation of MAS for the control and operation of smart grids. The MAS' applications in SG available in the literature are also developed in this paper. © 2014 IEEE.


Ajana M.E.,ENSIAS Rabat | Harroud H.,Alakhawayn University in Ifrane | Boulmalf M.,Alakhawayn University in Ifrane | Elkoutbi M.,ENSIAS Rabat
International Journal of Mobile Computing and Multimedia Communications | Year: 2011

Radio Frequency Identifcation (RFID) has been used since the Second World War to identify "friend or foe" aircrafts. It has become an enabling wireless technology that is widely used in a number of application areas, such as product tracking through manufacturing and assembly, inventory control, and supply chain management (SCM). By 2006, Wal-Mart used RFID for all of its suppliers. The use of RFID in supply chain networks has allowed Wal-Mart to create value through greater visibility in its networks, higher product velocity, reduce human error and labor cost, and more effcient inventory management, which led to the achievement of Quick Response (QR) and improved Customer Relationship Management (CRM) in the supply chain. However, RFID system challenges and uncertain Return-On-Investment (ROI) must be overcome to fully achieve these objectives. This paper introduces RFID technology and its key components and concepts, and presents an RFID middleware solution called FlexRFID that achieves the maximum benef ts of RFID technology independently of the interested backend applications. This paper illustrates how RFID technology is used to solve the main problems in SCM, the advantages and key issues when implementing RFID in SCM networks, and the relationship between RFID and the main SCM processes. Copyright © 2011, IGI Global. is prohibited.


Al Assaf M.M.,University of Jordan | Jiang X.,Auburn University | Abid M.R.,Alakhawayn University in Ifrane | Qin X.,Auburn University
Journal of Signal Processing Systems | Year: 2013

In this paper, we present an energy-aware informed prefetching technique called Eco-Storage that makes use of the application-disclosed access patterns to group the informed prefetching process in a hybrid storage system (e.g.; hard disk drive and solid state disks). Since the SSDs are more energy efficient than HDDs, aggressive prefetching for the data in the HDD level enables it to have as much standby time as possible in order to save power. In the Eco-Storage system, the application can still read its on-demand I/O reading requests from the hybrid storage system while the data blocks are prefetched in groups from HDD to SSD. We show that these two steps can be handled in parallel to decreases the system's power consumption. Our Eco-Storage technique differs from existing energy-aware prefetching schemes in two ways. First, Eco-Storage is implemented in a hybrid storage system where the SDD level is more energy efficient. Second, it can group the informed prefetching process and quickly prefetch the data from the HDD to the SSD to increase the frequent HDD standby times. This will makes the application finds most of its on-demand I/O reading requests in the SSD level. Finally, we develop a simulator to evaluate our Eco-Storage system performance. Our results show that our Eco-Storage reduces the power consumption by at least 75 % when compared with the worst case of non-Eco-Storage case using a real-world I/O trace. © 2013 Springer Science+Business Media New York.


Adhoni Z.A.,Qassim University | Hamad H.A.,Qassim University | Siddiqi A.A.,Taibah University | Mortaji L.E.,Alakhawayn University in Ifrane
Proceedings - 2013 Taibah University International Conference on Advances in Information Technology for the Holy Quran and Its Sciences, NOORIC 2013 | Year: 2013

This paper aims to provide a detailed account of the research and development efforts put in the design and development of a complete and comprehensive online cloud Qur'an portal. This portal will make all the reading and resource sections accessible to the audience whether they are using laptops, PCs, mobile, tablet, or personal digital assistants. In its completed form, the portal will cover almost all themes related to Qur'an, such as 'Al-Mus'haf', 'reciter', 'translation', 'search', 'study materials', and 'videos of scholars on Tajweed'. The application will provide a specific widget interface on a mobile phone, enabling quick access and implementing the specific multimedia features of a mobile phone. A Qur'an authentic translation for non-Arabic users is also available, and transliteration of Qur'an in Urdu for people who cannot read Urdu but understand it will also be included. It will also promote the research and study of Qur'an through an easy Qur'an search tools. © 2015 IEEE.


Abid M.R.,Alakhawayn University in Ifrane | Biaz S.,Auburn University
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Year: 2013

Airtime is set as the default routing metric for the ongoing IEEE 802.11s wireless mesh networking standard. The metric is designed to minimize channel resource consumption by accounting for loss rate, bandwidth, and channel characteristics. However, the metric exhibits a noticeable ping-pong effect whose nature is still vague, and the very few references to this in the literature condemn it for being a perilous behavior. In this paper, we present a thorough study of the Airtime ping-pong effect, and highlight its correlation to the underlying rate control algorithms. Using different rate control algorithms (e.g., ARF, AARF, ONOE, AMRR and Constant rate), we establish that transmission rate adaptation is the principal cause behind the effect. We show that the effect is an inherent behavior, and that an accurate characterization of it can help improve network performance. We present a ping-pong-aware mechanism that, by detecting when a link undergoes such an effect, adapts the routing protocol for better network performance. The mechanism is O(1), decentralized, and can be easily integrated into the IEEE 802.11s routing protocol. © 2013 Springer-Verlag.

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