Browsing by Subject "video applications"

Now showing 1 - 2 of 2
  • Thumbnail Image
    Item
    Reliable Video over Software-Defined Networking (RVSDN)
    (IEEE, 2014-12) Owens, Harold II; Durresi, Arjan; Jain, Raj; Department of Computer & Information Science, IU School of Science
    Ensuring end-to-end quality of service for video applications requires the network to choose the most feasible path in terms of bandwidth, delay and jitter. Quality of service can only be ensured if the paths are reliable - perform to specification per request. This paper makes four contributions to research. First, it presents Reliable Video over Software-Defined Networking (RVSDN) which builds upon previous work of Video over Software-Defined Networking (VSDN) to address the issue of finding the most reliable path(s) through the network for video applications. Second, it presents the design and implementation of RVSDN. Third, it presents the experience of integrating RVSDN into ns-3 which is a network simulator used by the research community to simulate and model computer networks. Finally, it presents the results of RVSDN in terms of the number of requests serviced by the network architecture. RVSDN is able to service 31 times more requests than VSDN and MPLS explicit routing when the reliability constraint is 0.995 or greater using aggregation of reliability across network paths.
  • Thumbnail Image
    Item
    Video over Software Defined Networking
    (Office of the Vice Chancellor for Research, 2013-04-05) Owens II, Harold; Durresi, Arjan
    Supporting end-to-end quality of service (QoS) for video applications requires the network to select optimum path among multiple paths to improve application performance. Multiple network paths from source to destination may be available but due to current network high coupling design identifying alternate paths is difficult. Network architecture, like Integrated services (IntServ), install a single path from source to destination which may not be optimum path for the application. Furthermore, it is an arduous task for video application developers to request service from IntServ. This paper provides three contributions to research on providing end-to-end QoS for video applications. First, it presents video over software defined networking (VSDN) - an architecture that is capable of making optimum path selection utilizing a global network view. Second, it describes the VSDN protocol used by video application developers to request service from VSDN enabled networks. Third, it presents the results of implementing a prototype of VSDN and quantitatively evaluates its behavior. The results show that VSDN has a linear-message complexity.