Nadir Bouchama | University Abderahmane Mira, Bejaia (original) (raw)
Papers by Nadir Bouchama
International Journal of Ad Hoc and Ubiquitous Computing, 2019
Quality of service (QoS) provisioning in mobile ad hoc networks (MANETs) consists of providing a ... more Quality of service (QoS) provisioning in mobile ad hoc networks (MANETs) consists of providing a complex functionality in a harsh environment where resources are scarce. Thus, it is very challenging to build an efficient solution to address this issue. The proposed solutions in the literature are broadly classified into four categories, namely: QoS routing protocols, QoS signalling, QoS-aware MAC protocols and QoS models, which are the main concern of our study. The contribution of this paper is threefold: Firstly, we propose a set of guidelines to deal with the challenges facing QoS models design in ad hoc networks. Secondly, we propose a new taxonomy for QoS models in ad hoc networks. Finally, we provide an in-depth survey and discussion of the most relevant proposed frameworks.
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Efficiently responding to large-scale natural or man-made disasters requires many complex tasks to... more Efficiently responding to large-scale natural or man-made disasters requires many complex tasks to be performed by multiple actors under time pressure, resource constraints and often adverse conditions. Major disasters involve several organizations in the rescue operations, such as governmental, non-governmental, communities, etc. This diversity of organizations requires a need for close coordination and generates a massive amount of information exchange for an effective collaboration and decision making. In such disaster situations, traditional communication services such as cellular mobile networks and Internet access may be overloaded or completely inoperable, leading to chaos among these organizations. Recently, several projects have been conducted on the use of Information and Communication Technologies (ICTs) for disaster management. ICTs have drawn much attention due to the potential they offer in supporting the important needs for communication and information sharing in these situations. Among the most active free open source software projects, and Ushahidi, Sahana. Sahana is a web based application that aims to be a solution for information management in relief operations for collection, registration and dissemination of data concerning the involved organizations, missing persons, or available shelter. Ushahidi platform is a tool to easily crowdsource information using multiple channels, including SMS, email, Twitter and the web. It uses maps from several providers to give a global view of the disaster area. However, each of these softwares covers partially the coordination and collaboration needs in disaster management. This rises the need for integrating several tools to support communication and information management for efficient coordination and decision making in disaster situations. In this demo, we show how it is possible to use the above open source solutions as a single cohesive global system that can be rapidly and easily deployed by the involved organizations. The proposed solution ensures communication activities and provides information system and data management support for the basic functionalities of disaster management. In fact we targeted two-level architecture: the communication infrastructure level and the information level. We propose a deployment of a robust communication infrastructure based on wireless mesh networks to cover the affected area. This wireless infrastructure ensures multimedia communication (VoIP, Video, text, files, ...) between emergency rescue teams and allows to collect data in order to get better and nearly real time are becoming more and more popular. situation awareness. To allow the rescue teams to collaborate with a distant command headquarter, we deployed locally on-site instances of Sahana, Ushahidi, OpenStreetMap data Server and a SIP Server. This corresponds to the information level. Moreover, to reach inaccessible areas in disaster field, we use drones equipped with IP cameras and mobile sinks to gather information from already deployed sensor nodes. We developed a module that extends Ushahidi with a new information channel provided by sensor nodes, such that all gathered information are directly displayed as events on an Ushahidi map. To show the efficiency of the proposed integrated solution, experiments were conducted in CERIST simulating an earthquake that engendered unreachable zones, fires and floods. The wireless mesh network infrastructure and the different servers were locally deployed. The emergency rescue teams used our solution to coordinate between them and with a distant command headquarter for efficient decision making.
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ABSTRACT Responding to natural or man-made disasters, in a timely and effective manner, can reduc... more ABSTRACT Responding to natural or man-made disasters, in a timely and effective manner, can reduce deaths and injuries as well as economic losses. Predicated on the assumption that better information leads to efficient decision-making and more effective performance of crisis response, research projects applying advanced information technology solutions to the crisis management field have emerged. This paper provides an overview of most recent projects, in this area, all over the world. Furthermore, the study highlights that using scalable and robust IT solutions can drastically facilitate access to theright information, by the right individuals and organizations,at the right time.
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Internet Congestion Control, 2015
This chapter discusses congestion control in high-speed networks with long latencies. One of the ... more This chapter discusses congestion control in high-speed networks with long latencies. One of the consequences of the application of control theory to TCP congestion control was the realization that TCP Reno was inherently unstable as the delay-bandwidth product of the network became large or even for very large bandwidths. As a result of this, a number of new congestion control designs were suggested with the objective of solving this problem such as High-Speed TCP (HSTCP), TCP Binary Increase Congestion control (BIC), TCP CUBIC, and Compound TCP (CTCP), which are described in this chapter. Currently, TCP CUBIC serves as the default congestion control algorithm for Linux servers and as a result is as widely deployed as TCP Reno. CTCP is used as the default option for Windows servers and is also very widely deployed. We also describe the eXpress Control Protocol (XCP) and Rate Control Protocol (RCP) algorithms that have been very influential in the design of high-speed congestion control protocols. Finally, we make connections between the algorithms in this chapter and the stability theory from Chapter 3 and give some general guidelines to be used in the design of high-speed congestion control algorithms.
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Responding to natural or man-made disasters, in a timely and effective manner, can reduce deaths ... more Responding to natural or man-made disasters, in a timely and effective manner, can reduce deaths and injuries as well as economic losses. Predicated on the assumption that better information leads to efficient decision-making and more effective performance of crisis response, research projects applying advanced information technology solutions to the crisis management field have emerged. This paper provides an overview of most recent projects, in this area, all over the world. Furthermore, the study highlights that using scalable and robust IT solutions can drastically facilitate access to the right information, by the right individuals and organizations, at the right time.
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International Journal of Ad Hoc and Ubiquitous Computing
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ABSTRACT Responding to natural or man-made disasters, in a timely and effective manner, can reduc... more ABSTRACT Responding to natural or man-made disasters, in a timely and effective manner, can reduce deaths and injuries as well as economic losses. Predicated on the assumption that better information leads to efficient decision-making and more effective performance of crisis response, research projects applying advanced information technology solutions to the crisis management field have emerged. This paper provides an overview of most recent projects, in this area, all over the world. Furthermore, the study highlights that using scalable and robust IT solutions can drastically facilitate access to theright information, by the right individuals and organizations,at the right time.
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Efficiently responding to large-scale natural or man-made disasters requires many complex tasks to... more Efficiently responding to large-scale natural or man-made disasters requires many complex tasks to be performed by multiple actors under time pressure, resource constraints and often adverse conditions. Major disasters involve several organizations in the rescue operations, such as governmental, non-governmental, communities, etc. This diversity of organizations requires a need for close coordination and generates a massive amount of information exchange for an effective collaboration and decision making. In such disaster situations, traditional communication services such as cellular mobile networks and Internet access may be overloaded or completely inoperable, leading to chaos among these organizations.
Recently, several projects have been conducted on the use of Information and Communication Technologies (ICTs) for disaster management. ICTs have drawn much attention due to the potential they offer in supporting the important needs for communication and information sharing in these situations. Among the most active free open source software projects, and Ushahidi, Sahana. Sahana is a web based application that aims to be a solution for information management in relief operations for collection, registration and dissemination of data concerning the involved organizations, missing persons, or available shelter. Ushahidi platform is a tool to easily crowdsource information using multiple channels, including SMS, email, Twitter and the web. It uses maps from several providers to give a global view of the disaster area. However, each of these softwares covers partially the coordination and collaboration needs in disaster management. This rises the need for integrating several tools to support communication and information management for efficient coordination and decision making in disaster situations.
In this demo, we show how it is possible to use the above open source solutions as a single cohesive global system that can be rapidly and easily deployed by the involved organizations. The proposed solution ensures communication activities and provides information system and data management support for the basic functionalities of disaster management. In fact we targeted two-level architecture: the communication infrastructure level and the information level. We propose a deployment of a robust communication infrastructure based on wireless mesh networks to cover the affected area. This wireless infrastructure ensures multimedia communication (VoIP, Video, text, files, ...) between emergency rescue teams and allows to collect data in order to get better and nearly real time are becoming more and more popular. situation awareness. To allow the rescue teams to collaborate with a distant command headquarter, we deployed locally on-site instances of Sahana, Ushahidi, OpenStreetMap data Server and a SIP Server. This corresponds to the information level. Moreover, to reach inaccessible areas in disaster field, we use drones equipped with IP cameras and mobile sinks to gather information from already deployed sensor nodes. We developed a module that extends Ushahidi with a new information channel provided by sensor nodes, such that all gathered information are directly displayed as events on an Ushahidi map.
To show the efficiency of the proposed integrated solution, experiments were conducted in CERIST simulating an earthquake that engendered unreachable zones, fires and floods. The wireless mesh network infrastructure and the different servers were locally deployed. The emergency rescue teams used our solution to coordinate between them and with a distant command headquarter for efficient decision making.
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Drafts by Nadir Bouchama
ICT-DM’2017 aims to bring together academics and practitioners who are involved in emergency serv... more ICT-DM’2017 aims to bring together academics and practitioners who are involved in emergency services, ad hoc planning, disaster recovery, etc., to learn about the latest research developments, share experiences and information about this area and develop recommendations.
Authors are invited to submit manuscripts that present original unpublished research on using ICTs for detection, prevention, preparation, response and recovery of disasters. There will also be invited presentations by experts from academia, industry, and government as well as special sessions dedicated to case studies, demonstrations and experiences based on pragmatic approaches. This way, the conference will provide a forum for supporting and encouraging both academic researchers, as well as practitioners involved in applied‐focused research.
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International Journal of Ad Hoc and Ubiquitous Computing, 2019
Quality of service (QoS) provisioning in mobile ad hoc networks (MANETs) consists of providing a ... more Quality of service (QoS) provisioning in mobile ad hoc networks (MANETs) consists of providing a complex functionality in a harsh environment where resources are scarce. Thus, it is very challenging to build an efficient solution to address this issue. The proposed solutions in the literature are broadly classified into four categories, namely: QoS routing protocols, QoS signalling, QoS-aware MAC protocols and QoS models, which are the main concern of our study. The contribution of this paper is threefold: Firstly, we propose a set of guidelines to deal with the challenges facing QoS models design in ad hoc networks. Secondly, we propose a new taxonomy for QoS models in ad hoc networks. Finally, we provide an in-depth survey and discussion of the most relevant proposed frameworks.
Bookmarks Related papers MentionsView impact
Bookmarks Related papers MentionsView impact
Efficiently responding to large-scale natural or man-made disasters requires many complex tasks to... more Efficiently responding to large-scale natural or man-made disasters requires many complex tasks to be performed by multiple actors under time pressure, resource constraints and often adverse conditions. Major disasters involve several organizations in the rescue operations, such as governmental, non-governmental, communities, etc. This diversity of organizations requires a need for close coordination and generates a massive amount of information exchange for an effective collaboration and decision making. In such disaster situations, traditional communication services such as cellular mobile networks and Internet access may be overloaded or completely inoperable, leading to chaos among these organizations. Recently, several projects have been conducted on the use of Information and Communication Technologies (ICTs) for disaster management. ICTs have drawn much attention due to the potential they offer in supporting the important needs for communication and information sharing in these situations. Among the most active free open source software projects, and Ushahidi, Sahana. Sahana is a web based application that aims to be a solution for information management in relief operations for collection, registration and dissemination of data concerning the involved organizations, missing persons, or available shelter. Ushahidi platform is a tool to easily crowdsource information using multiple channels, including SMS, email, Twitter and the web. It uses maps from several providers to give a global view of the disaster area. However, each of these softwares covers partially the coordination and collaboration needs in disaster management. This rises the need for integrating several tools to support communication and information management for efficient coordination and decision making in disaster situations. In this demo, we show how it is possible to use the above open source solutions as a single cohesive global system that can be rapidly and easily deployed by the involved organizations. The proposed solution ensures communication activities and provides information system and data management support for the basic functionalities of disaster management. In fact we targeted two-level architecture: the communication infrastructure level and the information level. We propose a deployment of a robust communication infrastructure based on wireless mesh networks to cover the affected area. This wireless infrastructure ensures multimedia communication (VoIP, Video, text, files, ...) between emergency rescue teams and allows to collect data in order to get better and nearly real time are becoming more and more popular. situation awareness. To allow the rescue teams to collaborate with a distant command headquarter, we deployed locally on-site instances of Sahana, Ushahidi, OpenStreetMap data Server and a SIP Server. This corresponds to the information level. Moreover, to reach inaccessible areas in disaster field, we use drones equipped with IP cameras and mobile sinks to gather information from already deployed sensor nodes. We developed a module that extends Ushahidi with a new information channel provided by sensor nodes, such that all gathered information are directly displayed as events on an Ushahidi map. To show the efficiency of the proposed integrated solution, experiments were conducted in CERIST simulating an earthquake that engendered unreachable zones, fires and floods. The wireless mesh network infrastructure and the different servers were locally deployed. The emergency rescue teams used our solution to coordinate between them and with a distant command headquarter for efficient decision making.
Bookmarks Related papers MentionsView impact
ABSTRACT Responding to natural or man-made disasters, in a timely and effective manner, can reduc... more ABSTRACT Responding to natural or man-made disasters, in a timely and effective manner, can reduce deaths and injuries as well as economic losses. Predicated on the assumption that better information leads to efficient decision-making and more effective performance of crisis response, research projects applying advanced information technology solutions to the crisis management field have emerged. This paper provides an overview of most recent projects, in this area, all over the world. Furthermore, the study highlights that using scalable and robust IT solutions can drastically facilitate access to theright information, by the right individuals and organizations,at the right time.
Bookmarks Related papers MentionsView impact
Internet Congestion Control, 2015
This chapter discusses congestion control in high-speed networks with long latencies. One of the ... more This chapter discusses congestion control in high-speed networks with long latencies. One of the consequences of the application of control theory to TCP congestion control was the realization that TCP Reno was inherently unstable as the delay-bandwidth product of the network became large or even for very large bandwidths. As a result of this, a number of new congestion control designs were suggested with the objective of solving this problem such as High-Speed TCP (HSTCP), TCP Binary Increase Congestion control (BIC), TCP CUBIC, and Compound TCP (CTCP), which are described in this chapter. Currently, TCP CUBIC serves as the default congestion control algorithm for Linux servers and as a result is as widely deployed as TCP Reno. CTCP is used as the default option for Windows servers and is also very widely deployed. We also describe the eXpress Control Protocol (XCP) and Rate Control Protocol (RCP) algorithms that have been very influential in the design of high-speed congestion control protocols. Finally, we make connections between the algorithms in this chapter and the stability theory from Chapter 3 and give some general guidelines to be used in the design of high-speed congestion control algorithms.
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Bookmarks Related papers MentionsView impact
Responding to natural or man-made disasters, in a timely and effective manner, can reduce deaths ... more Responding to natural or man-made disasters, in a timely and effective manner, can reduce deaths and injuries as well as economic losses. Predicated on the assumption that better information leads to efficient decision-making and more effective performance of crisis response, research projects applying advanced information technology solutions to the crisis management field have emerged. This paper provides an overview of most recent projects, in this area, all over the world. Furthermore, the study highlights that using scalable and robust IT solutions can drastically facilitate access to the right information, by the right individuals and organizations, at the right time.
Bookmarks Related papers MentionsView impact
International Journal of Ad Hoc and Ubiquitous Computing
Bookmarks Related papers MentionsView impact
ABSTRACT Responding to natural or man-made disasters, in a timely and effective manner, can reduc... more ABSTRACT Responding to natural or man-made disasters, in a timely and effective manner, can reduce deaths and injuries as well as economic losses. Predicated on the assumption that better information leads to efficient decision-making and more effective performance of crisis response, research projects applying advanced information technology solutions to the crisis management field have emerged. This paper provides an overview of most recent projects, in this area, all over the world. Furthermore, the study highlights that using scalable and robust IT solutions can drastically facilitate access to theright information, by the right individuals and organizations,at the right time.
Bookmarks Related papers MentionsView impact
Bookmarks Related papers MentionsView impact
Efficiently responding to large-scale natural or man-made disasters requires many complex tasks to... more Efficiently responding to large-scale natural or man-made disasters requires many complex tasks to be performed by multiple actors under time pressure, resource constraints and often adverse conditions. Major disasters involve several organizations in the rescue operations, such as governmental, non-governmental, communities, etc. This diversity of organizations requires a need for close coordination and generates a massive amount of information exchange for an effective collaboration and decision making. In such disaster situations, traditional communication services such as cellular mobile networks and Internet access may be overloaded or completely inoperable, leading to chaos among these organizations.
Recently, several projects have been conducted on the use of Information and Communication Technologies (ICTs) for disaster management. ICTs have drawn much attention due to the potential they offer in supporting the important needs for communication and information sharing in these situations. Among the most active free open source software projects, and Ushahidi, Sahana. Sahana is a web based application that aims to be a solution for information management in relief operations for collection, registration and dissemination of data concerning the involved organizations, missing persons, or available shelter. Ushahidi platform is a tool to easily crowdsource information using multiple channels, including SMS, email, Twitter and the web. It uses maps from several providers to give a global view of the disaster area. However, each of these softwares covers partially the coordination and collaboration needs in disaster management. This rises the need for integrating several tools to support communication and information management for efficient coordination and decision making in disaster situations.
In this demo, we show how it is possible to use the above open source solutions as a single cohesive global system that can be rapidly and easily deployed by the involved organizations. The proposed solution ensures communication activities and provides information system and data management support for the basic functionalities of disaster management. In fact we targeted two-level architecture: the communication infrastructure level and the information level. We propose a deployment of a robust communication infrastructure based on wireless mesh networks to cover the affected area. This wireless infrastructure ensures multimedia communication (VoIP, Video, text, files, ...) between emergency rescue teams and allows to collect data in order to get better and nearly real time are becoming more and more popular. situation awareness. To allow the rescue teams to collaborate with a distant command headquarter, we deployed locally on-site instances of Sahana, Ushahidi, OpenStreetMap data Server and a SIP Server. This corresponds to the information level. Moreover, to reach inaccessible areas in disaster field, we use drones equipped with IP cameras and mobile sinks to gather information from already deployed sensor nodes. We developed a module that extends Ushahidi with a new information channel provided by sensor nodes, such that all gathered information are directly displayed as events on an Ushahidi map.
To show the efficiency of the proposed integrated solution, experiments were conducted in CERIST simulating an earthquake that engendered unreachable zones, fires and floods. The wireless mesh network infrastructure and the different servers were locally deployed. The emergency rescue teams used our solution to coordinate between them and with a distant command headquarter for efficient decision making.
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ICT-DM’2017 aims to bring together academics and practitioners who are involved in emergency serv... more ICT-DM’2017 aims to bring together academics and practitioners who are involved in emergency services, ad hoc planning, disaster recovery, etc., to learn about the latest research developments, share experiences and information about this area and develop recommendations.
Authors are invited to submit manuscripts that present original unpublished research on using ICTs for detection, prevention, preparation, response and recovery of disasters. There will also be invited presentations by experts from academia, industry, and government as well as special sessions dedicated to case studies, demonstrations and experiences based on pragmatic approaches. This way, the conference will provide a forum for supporting and encouraging both academic researchers, as well as practitioners involved in applied‐focused research.
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