A Survey on Optimizing Mobile Delivery of 360° Videos: Edge Caching and Multicasting

Recently, there has been an ever-growing demand for virtual reality (VR) and 360° video applications. Different from conventional 2D videos, 360° videos take users into an immersive experience by providing them with a navigable panoramic view. However, achieving adequate qualit...

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Main Authors: Moatasim Mahmoud, Stamatia Rizou, Andreas S. Panayides, Nikolaos V. Kantartzis, George K. Karagiannidis, Pavlos I. Lazaridis, Zaharias D. Zaharis
Format: Article
Language:English
Published: IEEE 2023-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10175638/
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author Moatasim Mahmoud
Stamatia Rizou
Andreas S. Panayides
Nikolaos V. Kantartzis
George K. Karagiannidis
Pavlos I. Lazaridis
Zaharias D. Zaharis
author_facet Moatasim Mahmoud
Stamatia Rizou
Andreas S. Panayides
Nikolaos V. Kantartzis
George K. Karagiannidis
Pavlos I. Lazaridis
Zaharias D. Zaharis
author_sort Moatasim Mahmoud
collection DOAJ
description Recently, there has been an ever-growing demand for virtual reality (VR) and 360° video applications. Different from conventional 2D videos, 360° videos take users into an immersive experience by providing them with a navigable panoramic view. However, achieving adequate quality of experience (QoE) levels poses significant network challenges, especially in mobile delivery setups. Despite the tremendous improvements offered by 5G and beyond mobile networks, streaming 360° videos in a similar fashion to 2D videos is suboptimal, while scaling at high numbers questions the feasibility of the endeavor. This paper explores the utilization of caching and multicasting solutions for the mobile delivery of VR and 360° videos. First, an overview of immersive technologies and their distinctive characteristics is provided. Then, we discuss the network challenges associated with 360° videos and the role of implementing robust caching and multicasting schemes that exploit the unique features of 360° videos and capitalize on the correlations among end-users’ viewports. Having established the foundations and challenges of 360° video streaming, we continue with a comparison of the state-of-the-art literature, while focusing on video streaming optimization aspects. We conclude our work by discussing the status and future research directions.
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spelling doaj.art-ea23046435084d938c91b31318cc55962023-07-13T23:00:43ZengIEEEIEEE Access2169-35362023-01-0111689256894210.1109/ACCESS.2023.329233510175638A Survey on Optimizing Mobile Delivery of 360° Videos: Edge Caching and MulticastingMoatasim Mahmoud0https://orcid.org/0000-0002-8319-6912Stamatia Rizou1Andreas S. Panayides2https://orcid.org/0000-0001-9829-7946Nikolaos V. Kantartzis3https://orcid.org/0000-0003-0959-7838George K. Karagiannidis4https://orcid.org/0000-0001-8810-0345Pavlos I. Lazaridis5https://orcid.org/0000-0001-5091-2567Zaharias D. Zaharis6https://orcid.org/0000-0002-4548-282XResearch and Development Department, Singular Logic, Athens, GreeceResearch and Development Department, Singular Logic, Athens, GreeceVIDEOMICS Group, CYENS Centre of Excellence, Nicosia, CyprusSchool of Electrical and Computer Engineering, Aristotle University of Thessaloniki, Thessaloniki, GreeceSchool of Electrical and Computer Engineering, Aristotle University of Thessaloniki, Thessaloniki, GreeceSchool of Computing and Engineering, University of Huddersfield, Huddersfield, U.KSchool of Electrical and Computer Engineering, Aristotle University of Thessaloniki, Thessaloniki, GreeceRecently, there has been an ever-growing demand for virtual reality (VR) and 360° video applications. Different from conventional 2D videos, 360° videos take users into an immersive experience by providing them with a navigable panoramic view. However, achieving adequate quality of experience (QoE) levels poses significant network challenges, especially in mobile delivery setups. Despite the tremendous improvements offered by 5G and beyond mobile networks, streaming 360° videos in a similar fashion to 2D videos is suboptimal, while scaling at high numbers questions the feasibility of the endeavor. This paper explores the utilization of caching and multicasting solutions for the mobile delivery of VR and 360° videos. First, an overview of immersive technologies and their distinctive characteristics is provided. Then, we discuss the network challenges associated with 360° videos and the role of implementing robust caching and multicasting schemes that exploit the unique features of 360° videos and capitalize on the correlations among end-users’ viewports. Having established the foundations and challenges of 360° video streaming, we continue with a comparison of the state-of-the-art literature, while focusing on video streaming optimization aspects. We conclude our work by discussing the status and future research directions.https://ieeexplore.ieee.org/document/10175638/Edge cachingmulti-access edge computing (MEC)multicastoptimizationvideo streamingVR
spellingShingle Moatasim Mahmoud
Stamatia Rizou
Andreas S. Panayides
Nikolaos V. Kantartzis
George K. Karagiannidis
Pavlos I. Lazaridis
Zaharias D. Zaharis
A Survey on Optimizing Mobile Delivery of 360° Videos: Edge Caching and Multicasting
IEEE Access
Edge caching
multi-access edge computing (MEC)
multicast
optimization
video streaming
VR
title A Survey on Optimizing Mobile Delivery of 360° Videos: Edge Caching and Multicasting
title_full A Survey on Optimizing Mobile Delivery of 360° Videos: Edge Caching and Multicasting
title_fullStr A Survey on Optimizing Mobile Delivery of 360° Videos: Edge Caching and Multicasting
title_full_unstemmed A Survey on Optimizing Mobile Delivery of 360° Videos: Edge Caching and Multicasting
title_short A Survey on Optimizing Mobile Delivery of 360° Videos: Edge Caching and Multicasting
title_sort survey on optimizing mobile delivery of 360 x00b0 videos edge caching and multicasting
topic Edge caching
multi-access edge computing (MEC)
multicast
optimization
video streaming
VR
url https://ieeexplore.ieee.org/document/10175638/
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