Correlated multi-streaming in distributed interactive multimedia systems

Distributed Interactive Multimedia Systems;Correlated Multi-Streaming;Bundle of Streams;Bundle Streaming as a Service;Streaming as a Service Kernel;3D Tele-immersion

Agarwal, Pooja ; Nahrstedt ; Klara

关键词: Distributed Interactive Multimedia Systems;    Correlated Multi-Streaming;    Bundle of Streams;    Bundle Streaming as a Service;    Streaming as a Service Kernel;    3D Tele-immersion;   

Others  :  https://www.ideals.illinois.edu/bitstream/handle/2142/27749/Agarwal_Pooja.pdf?sequence=1&isAllowed=y

美国|英语

来源: The Illinois Digital Environment for Access to Learning and Scholarship

【 摘 要 】

Distributed Interactive Multimedia Environments (DIMEs) enable geographically distributed people to interact with each other in a joint media-rich virtual environment for a wide range of activities, such as art performance, medical consultation, sport training, etc. The real-time collaborationis made possible by exchanging a set of multi-modal sensory streams over the network in real time. The characterization and evaluation of such multi-stream interactive environments is challenging because the traditional Quality of Service metrics (e.g., delay, jitter) are limited to a per stream basis. In this work, we present a novel ”Bundle of Streams” concept to define correlated multi-streams in DIMEs and present new cyber-physical, spatio-temporal QoS metrics to measure QoS over bundle of streams. We realize Bundle of Streams concept by presenting a novel paradigm ofBundle Streaming as a Service (SAS). We propose and develop SAS Kernel, a generic, distributed, modular and highly flexible streaming kernel realizing SAS concept. We validate the Bundle of Streams model by comparing the QoS performance of bundle of streams over different transport protocols in a 3D tele-immersive testbed. Also, further experiments demonstrate that the SASKernel incurs low overhead in delay, CPU, and bandwidth demands.