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  1. No Access

    Article

    Improving Emergency Response: An In-Depth Analysis of an ITS-G5 Messaging Strategy for Bus Blockage Emergencies at Level Crossings

    The Intelligent Transportation System protocol stack has revolutionized traffic efficiency and road safety applications in vehicular environments. This is due to the incorporation of the 802.11p standard in th...

    Mayssa Dardour, Mohamed Mosbah, Toufik Ahmed in Journal of Network and Systems Management (2024)

  2. No Access

    Chapter and Conference Paper

    Securing Level Crossings with Edge Infrastructure and V2X Communications: A High-Performance Solution

    The Internet of Vehicles (IoV) relies heavily on Vehicle-to-Everything (V2X) communications to enhance traffic safety and reduce the risk of accidents. This is particularly critical in level crossing scenarios...

    Mayssa Dardour, Hend Marouane in Distributed Computing for Emerging Smart N… (2024)

  3. No Access

    Book and Conference Proceedings

    Foundations and Practice of Security

    16th International Symposium, FPS 2023, Bordeaux, France, December 11–13, 2023, Revised Selected Papers, Part II

    Mohamed Mosbah, Florence Sèdes in Lecture Notes in Computer Science (2024)

  4. No Access

    Chapter and Conference Paper

    Integrated Vehicle Access Protocol with Priority-Based Messaging for VANETs

    Enhancing the functionality of connected and automated vehicles (CAVs) hinges on the robust exchange of real-time safety messages. These communications are critical for conveying traffic information, aiding dr...

    Mayssa Dardour, Mohamed Mosbah, Toufik Ahmed in Advanced Information Networking and Applic… (2024)

  5. No Access

    Book and Conference Proceedings

    Foundations and Practice of Security

    16th International Symposium, FPS 2023, Bordeaux, France, December 11–13, 2023, Revised Selected Papers, Part I

    Mohamed Mosbah, Florence Sèdes in Lecture Notes in Computer Science (2024)

  6. No Access

    Chapter and Conference Paper

    Analysis and Comparison of IEEE 802.11p and IEEE 802.11bd

    As the interest to improve road safety and traffic management is growing, a new generation standard for Vehicular Ad-hoc Networks (VANETs) need to be defined to enhance the performances of the vehicular networ...

    Badreddine Yacine Yacheur, Toufik Ahmed in Communication Technologies for Vehicles (2020)

  7. No Access

    Article

    An efficient playout smoothing mechanism for layered streaming in P2P networks

    Layered video streaming in peer-to-peer (P2P) networks has drawn great interest, since it can not only accommodate large numbers of users, but also handle peer heterogeneity. However, there’s still a lack of c...

    Abbas Bradai, Ubaid Abbasi, Raul Landa in Peer-to-Peer Networking and Applications (2014)

  8. Chapter and Conference Paper

    COOCHING: Cooperative Prefetching Strategy for P2P Video-on-Demand System

    Most P2P VoD schemes focused on service architectures and overlays optimization without considering segments rarity and the performance of prefetching strategies. As a result, they cannot better support VCR-or...

    Ubaid Abbasi, Toufik Ahmed in Wired-Wireless Multimedia Networks and Services Management (2009)

  9. No Access

    Article

    Using MPEG-21 for cross-layer multimedia content adaptation

    This paper presents a cross-layer model— formulated using interoperable description formats—for the adaptation of scalable H.264/MPEG-4 AVC (i.e., SVC) content in a video streaming system operating on a Wirele...

    Ingo Kofler, Joachim Seidl, Christian Timmerer in Signal, Image and Video Processing (2008)

  10. No Access

    Book and Conference Proceedings

    Management of Converged Multimedia Networks and Services

    11th IFIP/IEEE International Conference on Management of Multimedia and Mobile Networks and Services, MMNS 2008, Samos Island, Greece, September 22-26, 2008. Proceedings

    George Pavlou, Toufik Ahmed in Lecture Notes in Computer Science (2008)

  11. No Access

    Article

    P2P Object-based adaptivE Multimedia Streaming (POEMS)

    Peer-to-peer (P2P) paradigm has recently gained tremendous attraction and is widely used for content distribution and sharing. The future multimedia communication applications have to support the user’s needs,...

    Toufik Ahmed, Mubashar Mushtaq in Journal of Network and Systems Management (2007)

  12. Chapter and Conference Paper

    Hybrid Overlay Networks Management for Real-Time Multimedia Streaming over P2P Networks

    Recent growth of the multimedia content delivery over the Internet and the popularity of the peer-to-peer (P2P) architecture have opened new horizons for emerging novel services over the Internet. Currently, m...

    Mubashar Mushtaq, Toufik Ahmed in Real-Time Mobile Multimedia Services (2007)

  13. No Access

    Article

    Delivering audiovisual content with MPEG-21-enabled cross-layer QoS adaptation

    Future multimedia communication systems have to support the user’s needs, the terminal capabilities, the content specification and the underlying networking technologies. The related protocols and applications...

    Toufik Ahmed, Ismail Djama in Journal of Zhejiang University-SCIENCE A (2006)

  14. Chapter

    On Enhancing Diffserv Architecture by Dynamic Policy Provisioning Using Network Feedback

    This article describes an approach to improve IP packet marking entering a Diffsery domain through dynamic policy provisioning and network feedback signaling. Traffic entering the network is dynamically tagged...

    Toufik Ahmed, Raouf Boutaba, Ahmed Mehaoua in Network Control and Engineering for QoS, S… (2003)

  15. Chapter and Conference Paper

    IP Video Streaming with Fine-Grained TCP-Friendly Rate Adaptation

    Video streaming over the Internet is a challenging task since the Internet is a shared environment offering only best effort service. That is, it offers no quality of service and no guarantee of resources in t...

    Toufik Ahmed, Ahmed Mehaoua, Raouf Boutaba in Management of Multimedia Networks and Serv… (2003)

  16. Chapter and Conference Paper

    Dynamic QoS Adaptation Using COPS and Network Monitoring Feedback

    This paper presents an approach to handle out of profile traffic using Common Open Policy Service and network monitoring feedback. The proposed approach is based on monitoring and reporting information sent by...

    Toufik Ahmed, Ahmed Mehaoua, Raouf Boutaba in Management of Multimedia on the Internet (2002)

  17. Chapter and Conference Paper

    Delivering of MPEG-4 Multimedia Content over Next Generation Internet

    IP and MPEG-4 digital video are two key technologies that will be increasingly combined in the very near future for the deployment of next generation Internet multimedia services. This article discusses techni...

    Toufik Ahmed, Guillaume Buridant, Ahmed Mehaoua in Management of Multimedia on the Internet (2001)