Prioritized evolutionary optimization in open session management for 3D tele-immersion

Ahsan Arefin, Raoul Rivas, Klara Nahrstedt

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Different 3D tele-immersive (3DTI) activities pose different requirements for application and network level quality of service (QoS) to ensure a strong quality of experience (QoE) for participants. Some applications put heavy weight on audio quality, some consider higher quality for upper body video streams, and some seek very low end-to-end interactivity delay. In addition, a variation in streaming content may arise due to the participants' change of interests (e.g., view change). Therefore, there is a need for an adaptive multi-stream, multi-site 3DTI session management strategy, which is unobtrusive, and optimizes QoS parameters in the 3DTI content distribution based on the user activity and content variation. To address this next generation session management problem, we revisit the design space of multi-stream and multi-site 3DTI session layer. We propose an evolutionary 3DTI session optimization approach using an Open Session Management (OSM) architecture that uses a global view of participants and overlay network conditions to optimize prioritized QoS parameters. Experimental results with PlanetLab traces show that the optimization process is computationally unobtrusive, and the optimized TI sessions meet expectations of the participants up to 50% higher compared to the current solutions in the 3DTI space.

Original languageEnglish (US)
Title of host publicationProceedings of the 4th ACM Multimedia Systems Conference, MMSys 2013
Number of pages12
StatePublished - May 27 2013
Event4th ACM Multimedia Systems Conference, MMSys 2013 - Oslo, Norway
Duration: Feb 28 2013Mar 1 2013

Publication series

NameProceedings of the 4th ACM Multimedia Systems Conference, MMSys 2013


Other4th ACM Multimedia Systems Conference, MMSys 2013


  • 3D tele-immersion
  • content distribution
  • distributed application
  • network protocols
  • optimization
  • session management

ASJC Scopus subject areas

  • Computer Graphics and Computer-Aided Design
  • Human-Computer Interaction
  • Software

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