VR/AR immersive communication: Caching, edge computing, and transmission trade-offs

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

85 Scopus citations

Abstract

We study the delivery of 360 ° -navigable videos to 5G VR/AR wireless clients in future cooperative multi-cellular systems. A collection of small-cell base stations interconnected via back-haul links are sharing their caching and computing resources to maximize the aggregate reward they earn by serving 360 ° videos requested by VR/AR wireless clients. We design an efficient representation method to construct the 360 ° videos such that they only deliver the remote scene viewpoint content genuinely needed by the VR/AR user, thereby overcoming the present highly inefficient approach of sending a bulky 360 ° video, whose major part comprises scene information never accessed by the user.Moreover, we design an optimization framework that allows the base stations to select cooperative caching/rendering/streaming strategies that maximize the aggregate reward they earn when serving the users, for the given caching/computational resources at each base station. We formulate the problem of interest as integer programming, show its NPhardness, and derive a fully-polynomial-time approximation solution with strong performance guarantees. Our advances demonstrate orders of magnitude operational efficiency gains over stateof- the-art caching and 360 ° video representation mechanisms and are very promising. This is a first-of-its-kind study to explore fundamental trade-offs between caching, computing, and communication for emerging VR/AR applications of broad societal impact.

Original languageEnglish (US)
Title of host publicationVR/AR Network 2017 - Proceedings of the 2017 Workshop on Virtual Reality and Augmented Reality Network, Part of SIGCOMM 2017
PublisherAssociation for Computing Machinery, Inc
Pages36-41
Number of pages6
ISBN (Electronic)9781450350556
DOIs
StatePublished - Aug 11 2017
Externally publishedYes
Event2017 ACM SIGCOMM Workshop on Virtual Reality and Augmented Reality Network, VR/AR Network 2017 - Los Angeles, United States
Duration: Aug 25 2017 → …

Publication series

NameVR/AR Network 2017 - Proceedings of the 2017 Workshop on Virtual Reality and Augmented Reality Network, Part of SIGCOMM 2017

Conference

Conference2017 ACM SIGCOMM Workshop on Virtual Reality and Augmented Reality Network, VR/AR Network 2017
Country/TerritoryUnited States
CityLos Angeles
Period8/25/17 → …

All Science Journal Classification (ASJC) codes

  • Computer Vision and Pattern Recognition
  • Computer Graphics and Computer-Aided Design

Keywords

  • 360 ° video
  • Small-cell networks
  • Virtual/augmented reality

Fingerprint

Dive into the research topics of 'VR/AR immersive communication: Caching, edge computing, and transmission trade-offs'. Together they form a unique fingerprint.

Cite this