PhD defense of Mahdi Ezzaouia on November 8th, 2018

The defense of PhD thesis of Mahdi Ezzaouia will be held on November 8th at 10:00 at IMT Atlantique, Rennes Campus , Petit Amphi. The thesis is entitled “Opportunistic resource allocation in multi-cell wireless networks”. It was made in the framework of a “co-tutelle” with Ecole Nationale d’Ingénieurs de Tunis (ENIT), Tunisia.

 

PhD defense of Xavier Corbillon on October 30th, 2018

The defense of PhD thesis of Xavier Corbillon will be held on October 30th at 10:15 at IMT Atlantique, Rennes Campus , Petit Amphi. The thesis title is “Enable the next generation of interactive video streaming”.

Abstract

Omnidirectional videos, also denoted as spherical videos or 360° videos, are videos with pixels recorded from a given viewpoint in every direction of space. A user watching such an omnidirectional content with a Head Mounted Display (HMD) can select the portion of the video to display, usually denoted as viewport, by moving her head. To feel high immersion inside the content a user needs to see viewport with 4K resolution and 90 Hz frame rate. With traditional streaming technologies, providing such quality would require a data rate of more than 100 Mbps , which is far too high compared to the median Internet access bandwidth. In this dissertation, I present my contributions to enable the streaming of highly immersive omnidirectional videos on the Internet. We can distinguish six contributions : a viewport-adaptive streaming architecture proposal reusing a part of existing technologies ; an extension of this architecture for videos with six degrees of freedom ; two theoretical studies of videos with non-homogeneous spatial quality ; an open-source software for handling 360° videos ; and a dataset of recorded users’ trajectories while watching 360° videos. The work done during this thesis was published in eight international conferences and in one journal, and resulted in three “Best Paper Award”s.

 Keywords

Omnidirectional Video, 360°Video, Viewport-Adaptive Streaming, DASH, HEVC

PhD defense of Alassane Samba on October 29th, 2018

The defense of PhD thesis of Alassane Samba will be held on October 29th at 14:00 at IMT Atlantique, Rennes Campus , Petit Amphi. The thesis title is “Data science for services in operated networks”.

 

Best paper award at IEEE MMSP

Hristina Hristova, Xavier Corbillon, Gwendal Simon, Viswanathan Swaminathan (Adobe), and Alisa Devlic (Huawei) received the best paper award at IEEE MMSP 2017. The paper is entitled “Heterogeneous Spatial Quality for Omnidirectional Video”.

See http://www.ece.ubc.ca/~mmsp2018/awards

Best paper award at MMSys 2018

Xavier Corbillon, Francesca De Simone, Gwendal Simon and Pascal Frossard received the best student-paper award at ACM MMSys 2018, a top-ranking conference of multimedia. The paper is entitled “Dynamic Adaptive Streaming for Multi-Viewpoint Omnidirectional Videos”.

See http://www.mmsys2018.org/program/awards/

PhD defense of Farah Slim on March 13th, 2018

The defense of PhD thesis of Farah SLIM will be held on March 13th at 10:00 at IMT Atlantique, Rennes Campus , Petit Amphi. The thesis title is “Design and Implementation of Resource Allocation Algorithms for a Network Operating System”.

PhD defense of Jialong Duan on 27/11/2017

The defense of PhD thesis of Jialong Duan will be held on November 27th at 10:15 at IMT Atlantique, Rennes Campus , Petit Amphi. The thesis title is “Coordination inside Centralized Radio Access Networks with Limited Fronthaul Capacity”.

PhD defense of Qipeng Song on 07/11/2017

The defense of PhD thesis of Qipeng Song will be held on November 7th at 14:00 at IMT Atlantique, Rennes Campus , Petit Amphi.

The thesis title is “Radio Access Mechanisms for Massive Communication in Long-­Range Wireless networks”.

Visit of Mónica Espinosa Buitrago

Mónica Espinosa Buitrago is at IMT Atlantique from 23th of October 2017 to 21th of December 2017. She is from Bogotá-Colombia. She is lecturer in Santo Tomás University in the telecommunication department and a PhD student in Javeriana University. She is working with professor Xavier Lagrangue on IoT, Television White Spaces and cognitive radio topics.

Visit of Oluwafolake OJO from Nigeria

Oluwafolake OJO, a visiting PhD student from Nigeria has joined ADOPNET from 5th September, 2017 to 16th November, 2017.

She will be working with Dr. Gwendal SIMON on Peer-Assisted 360 Degree Video Technology for Low Capacity Networks and will be based on IMT Atlantique, Rennes campus.