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Multipath prioritisation for improved virtual reality content delivery

da Silva, Fábio Rodrigues (2024) Multipath prioritisation for improved virtual reality content delivery. PhD thesis, Dublin City University.

This work proposes, assesses and evaluates algorithms to enhance the delivery of prioritised data streams crucial as inputs to VR applications. As VR technology adoption increases, it demands innovative methods to enhance its delivery. This work achieves it by employing algorithms that explore inherent features of Multipath TCP (MPTCP) while handling its subflows multipath capabilities. Such an approach is integrated into the transport layer of the Open Systems Interconnection (OSI) model with the following contributions. The RTT-aware Packet Delivery Prioritisation Algorithm (RDPA) (as an initial exploratory work) introduces a lightweight latency-sensitive algorithm for VR over MPTCP to leverage the multipath features and employs linear regression analysis to anticipate which subflows are most likely to achieve the lowest latency Round-Trip Time (RTT), thus ensuring more effective delivery and enhancing the overall VR experience. The Improved Quality Multipath Delivery of VR Content (QM4VR) explores the MPTCP stack, providing a novel management framework to improve Quality of Service (QoS) for VR applications. For that, QM4VR employs a Machine Learning (ML)-driven approach to assess subflows’ performance based on an expanded set of attributes to select the most suitable subflows for data delivery and improved QoS focusing in RTT and throughput. The Adaptive Content-based VR (AdaptVR) facilitates content-based prioritisation at a lower level, empowering VR applications to decide - based on hybrid criteria (including application-specific rules) how particular VR data streams should be prioritised to fit distinct demands. Adaptive Content-based VR (AdaptVR) extends how scheduling strategies control data streams via MPTCP subflows, improving performance based on the application’s adapted specifications translated to subflow Transmission Control Protocol (TCP)feature characteristics. The algorithms proposed in this thesis were assessed and evaluated through simulation models within a testbed using a Network Simulator 3 (NS-3) open-source MPTCP implementation for their development and analysis.
Item Type:Thesis (PhD)
Date of Award:March 2024
Supervisor(s):Muntean, Gabriel Miro and Cornetta, Gianluca
Uncontrolled Keywords:prioritised content delivery; virtual reality; multipath transmission protocol
Subjects:Computer Science > Computer networks
Computer Science > Multimedia systems
Engineering > Telecommunication
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Engineering and Computing > School of Electronic Engineering
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 License. View License
Funders:EU Horizon 2020 Research and Innovation Programme - NEWTON (688503), Lero - the SFI Research Centre for Software (13/RC/2094_2), EU Horizon 2020 Research and Innovation Programme - TRACTION (870610)
ID Code:29330
Deposited On:26 Mar 2024 09:48 by Gabriel Muntean . Last Modified 26 Mar 2024 09:48

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