Sizing network buffers: an HTTP Adaptive Streaming perspective
| dc.contributor.author | Raca, Darijo | |
| dc.contributor.author | Zahran, Ahmed H. | |
| dc.contributor.author | Sreenan, Cormac J. | |
| dc.contributor.funder | Science Foundation Ireland | en |
| dc.date.accessioned | 2017-08-11T11:29:57Z | |
| dc.date.available | 2017-08-11T11:29:57Z | |
| dc.date.issued | 2016-10-18 | |
| dc.date.updated | 2017-08-11T09:10:09Z | |
| dc.description.abstract | HTTP Adaptive video Streaming (HAS) is the dominant traffic type on the Internet. When multiple video clients share a bottleneck link many problems arise, notably bandwidth underutilisation, unfairness and instability. Key findings from previous papers show that the "ON-OFF" behaviour of adaptive video clients is the main culprit. In this paper we focus on the network, and specifically the effects of network queue size when multiple video clients share network resources. We conducted experiments using the Mininet virtual network environment streaming real video content to open-source GPAC video clients. We explored how different network buffer sizes, ranging from 1xBDP to 30xBDP (bandwidth-delay-product), affect clients sharing a bottleneck link. Within GPAC, we implemented the published state-of-the-art adaptive video algorithms FESTIVE and BBA-2. We also evaluated impact of web cross-traffic. Our main findings indicate that the "rule-of-thumb" 1xBDP for network buffer sizing causes bandwidth underutilisation, limiting available bandwidth to 70% for all video clients across different round-trip-times (RTT). Interaction between web and HAS clients depends on multiple factors, including adaptation algorithm, bitrate distribution and offered web traffic load. Additionally, operating in an environment with heterogeneous RTTs causes unfairness among ompeting HAS clients. Based on our experimental results, we propose 2xBDP as a default network queue size in environments when multiple users share network resources with homogeneous RTTs. With heterogeneous RTTs, a BDP value based on the average RTTs for all clients improves fairness among competing clients by 60%. | en |
| dc.description.sponsorship | Science Foundation Ireland (Research Grant 13/IA/1892) | en |
| dc.description.status | Peer reviewed | en |
| dc.description.uri | http://www.wikicfp.com/cfp/servlet/event.showcfp?eventid=50040©ownerid=21186 | en |
| dc.description.version | Accepted Version | en |
| dc.format.mimetype | application/pdf | en |
| dc.identifier.citation | Raca, D., Zahran, A. H. and Sreenan, C. J. (2016) 'Sizing network buffers: an HTTP Adaptive Streaming perspective', 2016 IEEE 4th International Conference on Future Internet of Things and Cloud Workshops (FiCloudW). Vienna, Austria, 22-24 August. IEEE, pp. 369-376. doi:10.1109/W-FiCloud.2016.80 | en |
| dc.identifier.doi | 10.1109/W-FiCloud.2016.80 | |
| dc.identifier.endpage | 376 | en |
| dc.identifier.isbn | 9781509039470 | |
| dc.identifier.startpage | 369 | en |
| dc.identifier.uri | https://hdl.handle.net/10468/4459 | |
| dc.language.iso | en | en |
| dc.publisher | Institute of Electrical and Electronics Engineers (IEEE) | en |
| dc.relation.ispartof | 2016 IEEE 4th International Conference on Future Internet of Things and Cloud Workshops (FiCloudW) | |
| dc.relation.uri | http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=7592515 | |
| dc.rights | © 2016, IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. | en |
| dc.subject | HAS | en |
| dc.subject | Adaptive systems | en |
| dc.subject | Bandwidth | en |
| dc.subject | Delays | en |
| dc.subject | Open source software | en |
| dc.subject | Streaming media | en |
| dc.subject | HTTP Adaptive Streaming | en |
| dc.subject | Video | en |
| dc.subject | Bandwidth-delay product | en |
| dc.subject | Network buffers | en |
| dc.subject | Internet | en |
| dc.title | Sizing network buffers: an HTTP Adaptive Streaming perspective | en |
| dc.type | Conference item | en |
