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Millimeter Wave and Free-space-optics for Future Dual-connectivity 6DOF Mobile Multi-user VR Streaming

Published: 06 February 2023 Publication History

Abstract

Dual-connectivity streaming is a key enabler of next-generation six Degrees Of Freedom (6DOF) Virtual Reality (VR) scene immersion. Indeed, using conventional sub-6 GHz WiFi only allows to reliably stream a low-quality baseline representation of the VR content, while emerging high-frequency communication technologies allow to stream in parallel a high-quality user viewport-specific enhancement representation that synergistically integrates with the baseline representation to deliver high-quality VR immersion. We investigate holistically as part of an entire future VR streaming system two such candidate emerging technologies, Free Space Optics (FSO) and millimeter-Wave (mmWave), that benefit from a large available spectrum to deliver unprecedented data rates. We analytically characterize the key components of the envisioned dual-connectivity 6DOF VR streaming system that integrates in addition edge computing and scalable 360° video tiling, and we formulate an optimization problem to maximize the immersion fidelity delivered by the system, given the WiFi and mmWave/FSO link rates, and the computing capabilities of the edge server and the users’ VR headsets. This optimization problem is mixed integer programming of high complexity and we formulate a geometric programming framework to compute the optimal solution at low complexity. We carry out simulation experiments to assess the performance of the proposed system using actual 6DOF navigation traces from multiple mobile VR users that we collected. Our results demonstrate that our system considerably advances the traditional state of the art and enables streaming of 8K-120 frames-per-second (fps) 6DOF content at high fidelity.

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Published In

cover image ACM Transactions on Multimedia Computing, Communications, and Applications
ACM Transactions on Multimedia Computing, Communications, and Applications  Volume 19, Issue 2
March 2023
540 pages
ISSN:1551-6857
EISSN:1551-6865
DOI:10.1145/3572860
  • Editor:
  • Abdulmotaleb El Saddik
Issue’s Table of Contents

Publisher

Association for Computing Machinery

New York, NY, United States

Publication History

Published: 06 February 2023
Online AM: 16 June 2022
Accepted: 31 May 2022
Revised: 19 May 2022
Received: 09 February 2022
Published in TOMM Volume 19, Issue 2

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Author Tags

  1. 6DOF virtual reality
  2. visible light communication
  3. MMWAVE communication
  4. WiFi-VLC dual connectivity wireless streaming
  5. scalable 360 degree video tiling

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  • Research-article
  • Refereed

Funding Sources

  • National Science Foundation
  • National Institutes of Health
  • Panasonic Chair of Sustainability at the New Jersey Institute for Technology

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  • (2024)Live 360° Video Streaming to Heterogeneous Clients in 5G NetworksIEEE Transactions on Multimedia10.1109/TMM.2024.338291026(8860-8873)Online publication date: 2024
  • (2024)Context-Aware and Reliable Transport Layer Framework for Interactive Immersive Media Delivery Over Millimeter WaveJournal of Network and Systems Management10.1007/s10922-024-09845-532:4Online publication date: 1-Oct-2024
  • (2023)NOMA Assisted Two-Tier VR Content Transmission: A Tile-Based Approach for QoE OptimizationIEEE Transactions on Mobile Computing10.1109/TMC.2023.328073923:5(3769-3784)Online publication date: 29-May-2023
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