UM  > 科技學院  > 電機及電腦工程系
A QoE centric distributed caching approach for vehicular video streaming in cellular networks
Sun F.3; Liu B.3; Hou F.5; Zhou H.1; Chen J.3; Rui Y.4; Gui L.3
2016-08-25
Source PublicationWireless Communications and Mobile Computing
ISSN15308677 15308669
Volume16Issue:12Pages:1612-1624
Abstract

Distributed caching-empowered wireless networks can greatly improve the efficiency of data storage and transmission and thereby the users' quality of experience (QoE). However, how this technology can alleviate the network access pressure while ensuring the consistency of content delivery is still an open question, especially in the case where the users are in fast motion. Therefore, in this paper, we investigate the caching issue emerging from a forthcoming scenario where vehicular video streaming is performed under cellular networks. Specifically, a QoE centric distributed caching approach is proposed to fulfill as many users' requests as possible, considering the limited caching space of base stations and basic user experience guarantee. Firstly, a QoE evaluation model is established using verified empirical data. Also, the mathematic relationship between the streaming bit rate and actual storage space is developed. Then, the distributed caching management for vehicular video streaming is formulated as a constrained optimization problem and solved with the generalized–reduced gradient method. Simulation results indicate that our approach can improve the users' satisfaction ratio by up to 40%. Copyright © 2015 John Wiley & Sons, Ltd.

KeywordCellular Network Distributed Caching Qoe Vehicular Video Streaming
DOI10.1002/wcm.2636
URLView the original
Language英语
WOS Research AreaComputer Science ; Engineering ; Telecommunications
WOS SubjectComputer Science, Information Systems ; Engineering, Electrical & Electronic ; Telecommunications
WOS IDWOS:000381106400012
PublisherWILEY-BLACKWELL, 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
Fulltext Access
Citation statistics
Cited Times [WOS]:3   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionDEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
Affiliation1.University of Waterloo
2.Deakin University
3.Shanghai Jiao Tong University
4.Chinese Academy of Sciences
5.Universidade de Macau
Recommended Citation
GB/T 7714
Sun F.,Liu B.,Hou F.,et al. A QoE centric distributed caching approach for vehicular video streaming in cellular networks[J]. Wireless Communications and Mobile Computing,2016,16(12):1612-1624.
APA Sun F..,Liu B..,Hou F..,Zhou H..,Chen J..,...&Gui L..(2016).A QoE centric distributed caching approach for vehicular video streaming in cellular networks.Wireless Communications and Mobile Computing,16(12),1612-1624.
MLA Sun F.,et al."A QoE centric distributed caching approach for vehicular video streaming in cellular networks".Wireless Communications and Mobile Computing 16.12(2016):1612-1624.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Sun F.]'s Articles
[Liu B.]'s Articles
[Hou F.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Sun F.]'s Articles
[Liu B.]'s Articles
[Hou F.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Sun F.]'s Articles
[Liu B.]'s Articles
[Hou F.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.