Residential College | false |
Status | 已發表Published |
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 Publication | Wireless Communications and Mobile Computing |
ISSN | 15308677 15308669 |
Volume | 16Issue: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. |
Keyword | Cellular Network Distributed Caching Qoe Vehicular Video Streaming |
DOI | 10.1002/wcm.2636 |
URL | View the original |
Language | 英語English |
WOS Research Area | Computer Science ; Engineering ; Telecommunications |
WOS Subject | Computer Science, Information Systems ; Engineering, Electrical & Electronic ; Telecommunications |
WOS ID | WOS:000381106400012 |
Publisher | WILEY-BLACKWELL, 111 RIVER ST, HOBOKEN 07030-5774, NJ USA |
Scopus ID | 2-s2.0-84942051783 |
Fulltext Access | |
Citation statistics | |
Document Type | Journal article |
Collection | DEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING |
Affiliation | 1.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.., Rui Y.., & 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. |
Files in This Item: | There are no files associated with this item. |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment