Badii Jouaber

Badii Jouaber
Institut Mines-Télécom / Institut Polytechnique de Paris · Télécom SudParis

PhD, HDR, head of the R3S team within the SAMOVAR Lab

About

62
Publications
3,908
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608
Citations

Publications

Publications (62)
Conference Paper
Full-text available
Within network slicing, Virtual Network Embedding has been vastly studied, i.e., deciding in which physical nodes and links to place virtual functions and links. However, the performance of slices does not only depend on where virtual functions and links are placed, but also on how much resources they can use, which has been mostly neglected in the...
Preprint
Full-text available
In this article, we consider the Virtual Network Embedding (VNE) problem for 5G networks slicing. This problem requires to allocate multiple Virtual Networks (VN) on a substrate virtualized physical network while maximizing among others, resource utilization, maximum number of placed VNs and network operator's benefit. We solve the online version o...
Conference Paper
Full-text available
In this paper, we consider the Virtual Network Embedding (VNE) problem for 5G networks slicing. This consists in optimally allocating multiple Virtual Networks (VN) on a substrate virtualized physical network while maximizing among others, resource utilization, maximum number of placed VNs and network operator's benefit. We solve the online version...
Conference Paper
Reducing energy consumption over mobile networks and devices is an important and challenging issue. On the one hand, power is a limited resource on mobile devices and its usage should be optimized. On the other hand, energy consumption constitutes an important item within operating expenditure (OPEX) for network providers. In the literature, many s...
Article
The extensive use of IEEE 802.11 WLAN networks have taken a tremendous leap in the area of wireless communication. Its increasing PHY data rate is at par with the wired Ethernet. However, at Medium Access Control (MAC) layer, the protocol lacks to utilize its full efficiency. The IEEE 802.11 Distributed Coordination channel access Function (DCF), i...
Conference Paper
Full-text available
Supporting real time video transmission over wireless networks is very challenging. The video flow characteristics can be vulnerable to the time-varying channel conditions and the unreliability of the MAC (Medium Access Control) can substantially degrade Quality of Experience (QoE) in wireless networks. QoE reflects the satisfaction level of a user...
Conference Paper
Supporting real time video transmission over wireless networks is very challenging. The video flow characteristics can be vulnerable to the time-varying channel conditions and the unreliability of the MAC (Medium Access Control) can substantially degrade Quality of Experience (QoE) in wireless networks. QoE reflects the satisfaction level of a user...
Conference Paper
Real time video transmission over wireless networks is very challenging due to the time-varying channel conditions and video flow characteristics. Quality of experience (QoE) in multimedia traffic has been the focus of extensive research in the recent years. It reflects user’s satisfaction towards a particular service and provides valuable input to...
Conference Paper
Full-text available
With the continuous evolution of wireless technologies, there is today a plethora of access networks ranging from wireless hotspots to high speed cellular networks. Within this rich environment and with multimodal terminals that are able to connect to different wireless technologies at once, users are expecting to benefit from higher throughput and...
Conference Paper
Full-text available
Mobility management over heterogeneous wireless networks is becoming a major interest area as new technologies and services continue to proliferate the wireless networking market. Context awareness can play a major role to improve mobile networking systems and to ensure seamless mobility. In this paper, we focus on Vertical Handover (VHO) decision...
Conference Paper
Full-text available
Energy consumption is among the major problems faced by cellular operators. In metropolitan areas, cellular network is divided into smaller cells due to high traffic. During low traffic period e.g., at midnight, Base Stations are underutilized but remain active and consume energy. In this paper, we propose two signaling frameworks for pooling the B...
Conference Paper
Integrating heterogeneous wireless networks invokes many architectural and technical challenges regarding networks cooperation, QoS and service continuity guarantees. In this paper, we focus on one of the main processes related to networks integration. It is the Vertical Handover (VHO), a critical process that requires high efficiency and low delay...
Article
In the nowadays heterogeneous wireless environment, a plethora of access networks have to be inter-connected in an optimal manner to meet the always best connected paradigm. This paper highlights some of the main technical challenges in heterogeneous wireless networks underlying seamless vertical handover making as a fundamental feature to all futu...
Conference Paper
Demands for QoS challenging wireless multimedia services are continuously increasing for both professional and entertainment needs. Efficient wireless technologies, able to offer the corresponding throughput and QoS are required. The IEEE 802.11n is the latest wireless standard. It introduces many improvements at both Physical and MAC layers. Howev...
Conference Paper
Today, it is widely accepted, that energy consumption is becoming the first item of expenditure for network providers. Energy saving and carbon footprint limitations are becoming of high interest in the telecommunication sector. In this paper, we consider interface selection for wireless networks’ access. We propose an Energy Consumption Optimizati...
Conference Paper
Full-text available
Radio resource and mobility managements are becoming more and more complex within nowadays rich and heterogeneous wireless access networking systems. Multiple requirements, challenges and constraints, at both technical and economical perspectives have to be considered. While the main objective remains guaranteeing the best Quality of Service and op...
Conference Paper
To meet the continuously increasing demands and requirements of mobile users, next generation wireless systems are more and more relaying on the coexistence of heterogeneous wireless networks. The objective is to provide any time and anywhere connectivity to users. One of the main challenges in such a heterogeneous environment is mobility managemen...
Conference Paper
Efficient vertical handover mechanisms are required to provide service continuity over available and upcoming heterogeneous wireless access networks. They should provide low delays and good accuracy to meet service requirements. In the literature, proposed mechanisms rely on a rich knowledge of users' ambient environments and contexts. The outcomes...
Conference Paper
Full-text available
Recent developments in computer science and networking technologies motivate new families of applications that are sensitive to user and ambient contexts. The objective is to offer adaptive services that can be personalized to users' needs within heterogeneous, complex and dynamic environments. This requires enhanced and generic solutions for conte...
Article
Stream Control can significantly improve network throughput of wireless networks with MIMO links. To be efficient, this technique requires optimal selection of the streams used at each link. In this paper, a joint stream control and link TDMA-based scheduling algorithm is proposed for MIMO wireless mesh networks. It selects the optimal set of simul...
Article
Angle of Departure (AOD) and Delay of Arrival (DOA) information is added to beamforming techniques to provide improved and more robust estimates of Angle of Arrival (AOA) and localization. A joint AOA, AOD and DOA algorithm based on the Capon Beamformer is proposed to reduce complexity and computation time compared to subspace-based methods. The pr...
Conference Paper
Provisioning continuous services while moving through heterogeneous wireless networks is a main issue in the fourth generation wireless Networks. An efficient vertical handover decision making algorithm that takes into account services' requirements, considers users' preferences and guaranties seamless handover over heterogeneous technologies is re...
Article
Full-text available
This paper introduces I-MAC, a new medium access control protocol for wireless sensor networks. I-MAC targets at improving both channel utilization and energy efficiency while taking into account traffic load for each sensor node according to its role in the network. I-MAC reaches its objectives through prioritized and adaptive access to the channe...
Article
Full-text available
In this paper, a two-tiered Wireless Sensor Network (WSN) where nodes are divided into clusters and nodes forward data to base stations through cluster heads is considered. To maximize the network lifetime, two energy efficient approaches are investigated. We first propose an approach that optimally locates the base stations within the network so t...
Conference Paper
Full-text available
Virtualization is a promising approach to meet the objectives of next generation networks. It will enable building pervasive systems, with the possibilities of automated adaptation and provision of personalized services for users with different needs and contexts. In this paper, we propose the use of Avatars: software delegates to hide heterogeneit...
Conference Paper
Beamforming techniques can enhance both capacity and coverage in wireless networks. To be efficient, most of these techniques require accurate estimation of the destination position. In vehicular environments, standard beamforming is not suitable when continuous tracking of node location is required. To handle inaccuracies in location estimation, t...
Conference Paper
Full-text available
This paper introduces I-MAC a new hybrid medium access control protocol for wireless sensor networks (WSNs). I- MAC combines both CSMA and TDMA techniques while introducing prioritization. It aims to improve energy efficiency as well as channel utilization. I-MAC is composed of two phases: a setup phase and a transmission phase. During the setup ph...
Conference Paper
In this paper, we consider the multiple sinks placement problem in energy constrained large-scale Wireless Sensor Networks (WSN). First, some fundamental design parameters in WSNs are investigated such as nodes deployment, the network architecture, sink velocity and transmission range. Each of these parameters is analysed and discussed according to...
Conference Paper
A slot assignment (or scheduling) in TDMA based wireless sensor networks (WSNs) considering energy efficiency, scalability and complexity is presented. The algorithm named DNIB is a new TDMA free collision distributed slot assignment algorithm for WSNs. DNIB relies on two-hop neighborhood information. Performance analysis and simulations show that...
Conference Paper
This paper introduces I-MAC, a new medium access control protocol for wireless sensor networks. I-MAC targets at improving both channel utilisation and energy efficiency while taking into account traffic load for each sensor node according to its role in the network. I-MAC reaches its objectives through prioritized and adaptive access to the channe...
Conference Paper
Mobile party (MP) has been recently proposed to solve the problem of scalability in wireless mesh network, which is an enhancement of a dynamic address allocation (DAA) based routing protocol called party. Party protocol has been proposed for self organizing ad hoc networks where scalability of routing protocol is the main issue. But MP still lacks...
Conference Paper
In this paper, we consider the multiple sinks placement problem in energy constrained large-scale Wireless Sensor Networks (WSN). First, some fundamental design parameters in WSNs such as nodes deployment, the network architecture, sink velocity and transmission range, are investigated. Each of these parameters is analysed and discussed according t...
Conference Paper
Full-text available
In this paper, we consider the multiple sinks placement problem in large-scale wireless sensor networks (WSN). The objective is to determine optimal sinks' positions that maximize the network lifetime by reducing energy consumption related to data transmissions from sensor nodes to different sinks. Balanced graph partitioning techniques are used to...
Conference Paper
Wireless sensor networks (WSN) are being widely studied through the last few years. Power limitation is considered as the most significant constraint since it directly influences the network lifetime and hence application quality of service (QoS). Different power-based routing and data gathering strategies are proposed in the literature. Most of th...
Conference Paper
Full-text available
In this paper we propose the mobile party protocol, a new scheme for mobility management in the context of mesh networks. While most of proposed solutions for mobility management issue are routing protocol- independent mechanisms, our proposal integrates routing and mobility management functionalities together in the same scheme. This enhances cons...
Conference Paper
Full-text available
In this paper we study a self organizing network architecture, party. Party is a new routing protocol intended to be applied in environments with large number of nodes where the scalability of the routing protocol plays an important role. Party's routing is unique and only depends on the current node's neighborhood. Routing tables are created on th...
Conference Paper
Wireless Sensor Networks are composed of autonomous interconnected sensing devices. Power limitation is considered as the most significant constraint for sensors. It directly influences the sensors ' lifetime and hence the application quality of service. Many studies have been conducted in the field, where different power-based routing and data gat...
Conference Paper
Energy consumption optimization constitutes one of the main challenges in wireless sensor networks. Most of the power based routing strategies proposed in the literature are based on global power consumption optimization rather than maximizing the network lifetime. In this paper, we propose an adaptive routing strategy that maximizes the lifetime o...
Conference Paper
In this paper we propose the Mobile Party protocol, a new scheme for mobility management in the context of mesh networks. While most of proposed solutions for mobility management issue are routing protocol-independent mechanisms, our proposal integrates routing and mobility management functionalities together in the same scheme. This enhances consi...
Article
Power limitation is one of the main constraints in sensor networks. Different power-saving strategies are proposed in the literature, but most of them are mainly focusing on power saving rather than maximizing the network lifetime. Moreover, Energy consumption related to reception operations is generally not considered. In this paper, we propose a...
Conference Paper
Full-text available
NEMO (Network Mobility) proposed to enable mobility of networks, suffers from multiple weaknesses in case of nested mobile networks. Pinball problem is one of these weakness caused by sub-optimal routing and resulting in substantial overhead and delays. In this paper, we propose to perform route optimization for nested mobile network. Our work is b...
Article
Full-text available
Ensuring seamless mobility for users is becoming one of the main objectives of ongoing research activities in the field of data telecommunications. More over, if some proposals are efficient in reducing handoff latency for single mobile hosts, adequate solutions are still required for moving networks. The NEtwork MObility protocol (NEMO), designed...
Conference Paper
Full-text available
In emerging personal area networks (PANs), consisting of heterogeneous devices and nodes, dynamic intra-PAN and PAN-to-infrastructure connectivity should be achieved transparently to end users and applications. This paper proposes a distributed virtual network interface (DVNI) solution for PAN device discovery, seamless handover and routing. DVNI i...
Article
The performance of TCP based applications in a UMTS-HSDPA system is evaluated, using an analytical model. HSDPA (High Speed Downlink Packet Access) is an evolution of the UMTS standard over the air interface to achieve higher bit rates through the introduction of adaptive modulation and coding, Hybrid ARQ, fast scheduling, fast cell selection and M...
Conference Paper
This paper explores and proposes the use of open programmable router technologies to achieve dynamic configuration, adaptation and management of network entities. The objective is to provide highly dynamic and flexible edge router technology to support the interconnection between emerging short range wireless technologies such as WPANs and IP based...
Conference Paper
Full-text available
This paper presents a set of studies and proposals related to cooperative, auto-configurable and adaptive networks. It summarizes some extensions and experiments performed within the RESACO project. The objective of this project is to propose viable architectures and tools that enable and enhance Quality-of-Service (QoS), mobility, service discover...
Conference Paper
An analytical model to evaluate the impact of TCP on the UMTS-HSDPA capacity is presented. A method to minimize the effect of TCP on wireless networks using shared channels is also proposed. HSDPA (high speed downlink packet access) achieves higher aggregate bit rates through the introduction of adaptive modulation and coding, hybrid ARQ, fast sche...
Conference Paper
The sliding window (SW) mechanism is widely used for policing schemes in the frame relay network. Many performance studies have already been performed. All of them have considered the algorithmic description, the only one available till now for the SW. A queueing model is given for the SW mechanism. Its conformity to the algorithmic behaviour is pr...

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Projects

Projects (6)
Project
Studies and experimentation on autonomous vehicles: - decision making strategies and AI - distributed reasoning and cooperation - network requirements - platooning use case