TY - JOUR
T1 - A Survey on Optimizing Mobile Delivery of 360◦ Videos
T2 - Edge Caching and Multicasting
AU - Mahmoud, Moatasim
AU - Rizou, Stamatia
AU - Panayides, Andreas S.
AU - Kantartzis, Nikolaos V.
AU - Karagiannidis, George K.
AU - Lazaridis, Pavlos I.
AU - Zaharis, Zaharias D.
N1 - Publisher Copyright:
© 2013 IEEE.
PY - 2023/7/12
Y1 - 2023/7/12
N2 - 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.
AB - 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.
KW - 360° videos
KW - 5G mobile communication
KW - Edge caching
KW - multi-access edge computing (MEC)
KW - multicast
KW - Multicast communication
KW - optimization
KW - Optimization
KW - Quality of experience
KW - Streaming media
KW - Surveys
KW - video streaming
KW - Videos
KW - VR
KW - Multicast
KW - 360° videos
UR - http://www.scopus.com/inward/record.url?scp=85164376356&partnerID=8YFLogxK
U2 - 10.1109/ACCESS.2023.3292335
DO - 10.1109/ACCESS.2023.3292335
M3 - Article
AN - SCOPUS:85164376356
VL - 11
SP - 68925
EP - 68942
JO - IEEE Access
JF - IEEE Access
SN - 2169-3536
M1 - 10175638
ER -