TY - GEN
T1 - VR/AR immersive communication
T2 - 2017 ACM SIGCOMM Workshop on Virtual Reality and Augmented Reality Network, VR/AR Network 2017
AU - Chakareski, Jacob
N1 - Publisher Copyright:
© 2017 Copyright held by the owner/author(s).
PY - 2017/8/11
Y1 - 2017/8/11
N2 - 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.
AB - 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.
KW - 360 ° video
KW - Small-cell networks
KW - Virtual/augmented reality
UR - http://www.scopus.com/inward/record.url?scp=85030179983&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85030179983&partnerID=8YFLogxK
U2 - 10.1145/3097895.3097902
DO - 10.1145/3097895.3097902
M3 - Conference contribution
AN - SCOPUS:85030179983
T3 - VR/AR Network 2017 - Proceedings of the 2017 Workshop on Virtual Reality and Augmented Reality Network, Part of SIGCOMM 2017
SP - 36
EP - 41
BT - VR/AR Network 2017 - Proceedings of the 2017 Workshop on Virtual Reality and Augmented Reality Network, Part of SIGCOMM 2017
PB - Association for Computing Machinery, Inc
Y2 - 25 August 2017
ER -