Abderrezak Rachedi

Université Gustave Eiffel · Laboratoire d'Informatique Gaspard Monge (UMR8049)

Due to their promising applications and intriguing characteristics, Unmanned Aerial Vehicles (UAVs) can be dispatched as flying base stations to serve multiple energy-constrained Internet-of-Things (IoT) sensors. Moreover, to ensure fresh data collection while providing sustainable energy support to a large set of IoT devices, a required number of...

The introduction of the Internet of Things (IoT) has gradually transformed conventional vehicular ad-hoc networks (VANETs) into a new paradigm known as the internet of vehicles (IoV), which has lately been the focus of several researchers. Frequent topological changes and the scalability issue are major problems that affect the performance of IoV....

The introduction of the Internet of Things (IoT) has gradually transformed conventional vehicular ad-hoc networks (VANETs) into a new paradigm known as the internet of vehicles (IoV), which has lately been the focus of several researchers. Frequent topological changes and the scalability issue are major problems that affect the performance of IoV....

Things are interconnected using information and communication technologies in smart cities, forming Internet of Things (IoT). The Internet of Vehicles (IoV) refers to an IoT application, where the urban vehicle fleet forms a worldwide network, using V2X (Vehicle-to-Everything) communications. The 5G is the new generation of cellular networks that w...

The ever increasing amount of connected mobile devices and users in the Internet of vehicles and the fact bicycles, electric scooters and users' smartphones are also connected poses a real challenge in terms of ensuring quality of service. The constantly changing topology due to the high‐mobility of devices and users greatly impacts its stability a...

Software‐defined networking (SDN) is a new paradigm that consists in decoupling the control plane from the data plane, which offers the flexibility of configuring and managing networks. Recently, an extension of SDN to vehicular ad hoc networks (VANETs), named software‐defined vehicular networks (SDVN), has been emerged to expand the capabilities o...

The beacon-enabled mode of IEEE 802.15.4 provides a Time Division Multiple Access (TDMA) method for low power devices by adopting Guaranteed Time Slots (GTS). GTS communication is a potential target for selective jammers where they perform GTS attacks. In GTS attacks, the adversary selectively picks one of the reserved device slots to corrupt its i...

In blockchain, transactions between parties are regrouped into blocks, in order to be added to the blockchain’s distributed ledger. Miners are nodes of the network that generate new blocks according to the consensus protocol. The miner that adds a valid block to the distributed ledger is rewarded. However, to find a valid block, the miner needs to...

Among metrics that highly affect video quality and quality of experience (QoE), we can cite the delay and cost transmission caused by mobile network overhead. Moreover, Information centric networking (ICN) is a new architecture that is proposed as a technique that offers very high throughput rates and very low latency, especially in QoE sensitive a...

Apart from the the increasing demand of smartphones in human-to-human (H2H) communications, the introduction of machine-to-machine (M2M) devices poses significant challenges to wireless cellular networks. In order to offer the ability to connect billion of devices to propel the society into a new era of connectivity in our homes, officies and smart...

Since the last few years, the Internet of Vehicles (IoV) has gained more interest from the community because of the rapid development of autonomous vehicles, the growing amount of data generated by vehicles' sensors, and the motivation to use this data for different purposes. Given the very dynamic nature of fast moving vehicles, building a network...

In 5G, low latency and high reliability have become the most significant issues in addition to ultra-high throughput and support of massive number of devices. To achieve the goal of low latency, the concept of tactile Internet has been introduced. To reduce the latency, the various techniques, which can be applied to from the physical layer to the...

Fog computing is a promising solution that was conceived to overcome the delay constraints and excessive use of radio resources required to access the cloud. It consists in bringing the cloud to the network edge to reduce latency and optimize the bandwidth usage. Recently, this concept has been extended to vehicular networks, named vehicular fog co...

Recent advances in sensor network provide more and more equipment with a large amount of sensors and actuators. However, their adoptions in modern life face several challenges. First, sensor network design is complex and requires several steps including network sizing, hardware and software development, deployment, and data exploitation. Often, eac...

Vehicular social network is emerging as a new promising concept, combining two types of network paradigms, namely, vehicular networks and social networks. In order to manage efficiently the security and the control of the network, this paper proposes a new framework based on the emerging concepts of software‐defined vehicular network (SDVN) and blo...

Fog computing (FC) and multi-access edge computing (MEC) are two promising technologies that have been emerged to solve problems related to the access to the cloud computing (CC), mainly high latency and high bandwidth consumption. These two paradigms consist in enabling the cloud closer to users at the edge of the network. The pool of vehicular re...

Sensor network design involves multiple steps including network sizing, hardware and software development, analysis/simulations, and data exploitation. Often, each step is handled by a specific tool. These tools are usually not interconnected. Therefore, descriptions are required for each tool. These many descriptions are costly in terms of develop...

In this paper, we present a new framework for protecting privacy on online social networks based on two main concepts: cloud computing and Attribute-Based Encryption system (ABE). The cloud computing is used to store outsourcing data by a third party. However, the issues of entrusting these third-party losing control over data arise. Thus, one does...

Internet of Mobile Things (IoMT) is a new paradigm of the Internet of Things (IoT) where devices are inherently mobile. While mobility enables innovative applications and allows new services, it remains a challenging issue as it causes disconnection of nodes and intermittent connectivity, which negatively impacts the network operation and performan...

To keep the services and applications of Intelligent Transportation System (ITS) stable and active, Vehicular Ad hoc Networks (VANETs) are considered as an essential building block to maintain and manage its features. A wide deployment of VANETs is possible only after addressing numerous research challenges. One of the most complicated issues consi...

Providing adapted e-health services, applications, and platforms responds to a growing need for medical institutions like hospitals or even homes [...]

Searchable encryption provides encryption schemes allowing search on encrypted data without decrypting the whole collection. However, due to the huge amount of data that exists in the Cloud, it is required to review such encryption schemes to decrease search and indexation times. In this paper, we propose a big data approach called MR‐Index (MapRed...

Rising energy costs, losses in the present-day electricity grid, risks from nuclear power generation, and global environmental changes are motivating a transformation of the conventional ways of generating electricity. Globally, there is a desire to rely more on renewable energy resources (RERs) for electricity generation. RERs reduce green house g...

The evolution of high performance computing architectures has increased the essence of effective utilization of resources. The cloud computing paradigm also incorporates high performance computing architectures with costly resources to provide services to end users. Its pay per use model makes it beneficial for cloud service providers as well as en...

The operation of modern electronic communication devices relies on constant energy sources such as DC power, obtained from AC sources via AC to DC conversion, or small chargeable/replaceable batteries. However, in some cases, providing constant energy sources may not be feasible. Advanced energy harvesting technologies can be used to power up moder...

The papers in this special section focus on the deployment of information and communication technology (ICT) in smart grids as it relates to renewable energy resource management. The successful integration of renewable energy into the power grid is expected to reduce the dependence of the grid on the fossil fuels. The potential renewable energy res...

An efficient mobility support protocol provides a continuous seamless connectivity for mobile nodes with constrained resources essentially in terms of energy and link capacity. The existing routing protocol RPL has a very low reactivity to mobility making it inefficient and open to further research improvements. In this paper, we propose a new proa...

The method concerns a method of communication between end-user terminals and user terminals that are static or have low relative mobility with respect to each other, wherein a control server: - selects the terminals that are static or have low relative mobility from among the assembly of terminals, the other terminals being referred to as end termi...

Being aware of the nodes positions is a key issue in order to locate precisely the sensor node, localization is very important information about sensor nodes in wireless sensor network (WSNs). Hence, the precision improvement is a significant issue that allows an effective data transmission between sensor network (SN) in order to save their energy...

In this paper, we propose a new programmable architecture based on Software Defined Network (SDN) paradigm for network control functionalities in Internet of Things (IoT) using the Connected Dominating Sets (CDS). In order to reduce the traffic load and to avoid a single point of failure at the controller node, we distribute the controllers role by...

Vehicular cloud computing is a new paradigm that integrates VANET and cloud computing. It refers to the vehicles' use of outside resources: they access to the conventional cloud or cooperate with other vehicles by sharing their resources (i.e. formation of a temporary vehicular cloud). Both these two ways induce different costs such as expensive ce...

In this paper, we focus on network control functionalities and resources management in Internet of Things (IoT) using Software Defined Network (SDN) and Fog computing paradigms. We propose a new hybrid and programmable architecture to make an appropriate decision related to the control process (centralized or semi-distribute) according to different...

Recent research and technology trends are shifting toward IoT and CRNs. However, we think that the things-oriented, Internet-oriented, and semantic-oriented versions of IoT are meaning- less if IoT objects are not equipped with cogni- tive radio capability. Equipping IoT objects with CR capability has lead to a new research dimen- sion of CR-based...

Internet of Mobile Things (IoMT) is a new paradigm of the Internet of Things (IoT) where devices such as sensors, robots, unmanned aerial vehicles (UAV) and cars, are inherently mobile. While mobility enables innovative applications and allows new services, it remains a challenging issue as it causes disconnection of nodes and intermittent connecti...

Vehicular Cloud Computing is a promising solution to exploit the underutilized vehicular resources and to meet the requirements of VANET applications and services. Although modern vehicles have important capacities of computation and storage, there is an increasing need for resources, in particular, for safety applications which require the coopera...

Data transportation and routing in Internet of Things (IoT) is a challenging issue where massive data collection and gathering are predictable. The Routing Protocol for Low- power and Lossy Networks (RPL) is one of the best candidates to ensure routing in 6LoWPAN networks. However, RPL is vulnerable to a number of attacks related to exchanged contr...

In this paper, we focus on the resource allocation based on scheduling algorithms. Unlike the existing solutions, we introduce the concept of Proportional-Integral-Derivative (PID) controller in the scheduling algorithm called PID-Scheduler in order to reach the system stability. The stability is considered in terms of throughput and delay which me...

In the current day and age, traffic in urban areas is becoming more and more complex leading to congested roads and intersections. Hence, the need for sophisticated traffic control system to reduce the congestion and provide better flow management. In this paper, we present briefly the basic notions and the most important parameters that affects th...

The plethora of research, standardization and developments in Internet of Things (IoT) has increased enormously in recent years. This is due to the vast scope of IoT. Internet of Things refers to the worldwide network of interconnected objects, which allow people or things to be connected anytime, anyplace, with anything and anyone, using any path,...

The IEEE 1609.4 protocol has been proposed to improve message delivery in Vehicular Ad Hoc Networks (VANETs) through its multi-channel usage. To ensure good performance for safety applications, during the first half of a synchronization interval, each vehicle tunes a dedicated Control CHannel (CCH) to exchange safety messages, and during the second...

L’introduction des communications machine à machine (M2M) dans les futurs réseaux cellulaires fera l’objet d’une dégradation considérable des performances des applications traditionnelles existantes dites humain à humain (H2H). Dans cet article, nous considérons l’accès simultané ́ aux ressources radio dans un scénario de coexistence M2M/H2H et ce...

Abstract—The introduction of machine-to-machine (M2M) communications to long term evolution and advanced (LTE- A) cellular networks can significantly degrade the performance of existing human-to-human (H2H) communications. In this paper, we consider a shared channel resource allocation in an H2H/M2M coexistence scenario. We first formulate the reso...

In this paper we address the impact of the security cost in terms of energy consumption, processing time, and traffic load on quality of services (QoS) in Wireless Sensor Networks (WSNs). Offering security services (authentication, confidentiality, and integrity) and QoS (throughput, delay, and reliability) guarantee in WSNs is still challenging is...

Machine to machine (M2M) communications pose significant challenges to the cellular networks due to its unique features such as the massive number of machine type devices (MTDs) as well as the limited data transmission session. Thus, advanced cellular network releases, such as long-term evolution (LTE) and LTE-Advanced (LTE-A), optimally designed t...

Mobility has the advantage of enlarging WSN applications. However, proposing a mobility support protocol in Wireless Sensor Networks (WSNs) represents a significant challenge. In this paper, we propose a survey on the mobility management protocols in Wireless Sensor Networks based on 6LoWPAN technology. This technology enables to connect IP sensor...

The smart grid is an important hub of interdisciplinary research where researchers from different areas of science and technology combine their efforts to enhance the traditional electrical power grid. Due to these efforts, the traditional electrical grid is now evolving. The envisioned smart grid will bring social, environmental, ethical, legal an...

The smart grid is an important hub of interdisciplinary research where researchers from different areas of science and technology combine their efforts to enhance the traditional electrical power grid. Due to these efforts, the traditional electrical grid is now evolving. The envisioned smart grid will bring social, environmental, ethical, legal an...