Séminaire d’Ismaël Bennis mardi 07mai de 11h00 à 12h30 en salle 018 (bât. Pascal)
Titre : Efficient Queuing Multimedia transmission over WSNs
Nowadays, multimedia contents are widely used for various applications to ensure personal and public services. This content is forwarded through different kind of networks, from classical Adhoc networks to the recent Internet of things. However, regardless the deployed network, the main goal remains the same : ensuring a better QoE and lower latency, especially for emergency traffic. This challenge attracts many research activities. In this presentation, we tackle this challenging issue and we propose a cross-layer scheme to handle video streaming over wireless sensor networks. Our starting point is to provide a carrier sense aware disjoint multi-path routing protocol able to transmit efficiently video and regular data from many sources to a unique base station (BS). This protocol will cooperate with the application layer in order to provide a frame-aware solution to assign high priority to the most important frames and low priority for the least important ones. This priority concerns which path the frames will use and which queuing policy will be applied. Our queuing policy involves enqueuing, dequeuing and congestion solving function with the aim of reducing video latency and enhancing the reliability. Experimental analysis has been conducted ; they demonstrate improvements of some performance indicators such as packet data rate, delay, loss packet rate and user experience.
Ismail Bennis : In 2011, he received a master’s degree in Computer Networks and Telecommunications from the Université Mohammed V, Rabat, Morocco. In 2015, he holds his PhD degree under joint supervision between the Université Mohamed V, Rabat, Morroco, and the Université de Reims Champagne-Ardenne, France. His research interests include the routing protocols with quality of service over the wireless sensor networks. He was particularly interested on the Internet of things paradigm with a focus on communication problems between heterogeneous systems. Currently, he is an Assistant Professor at the computer sciences at the L3I lab of the Université de La Rochelle since September 2019.