Abstract
Compared with using only a single wireless path such as WiFi, leveraging multipath (e.g., WiFi and cellular) can dramatically improve users' quality of experience (QoE) for mobile video streaming. However, Multipath TCP (MPTCP), the de-facto multipath solution, lacks the support to prioritize one path over another. When applied to video streaming, it may cause undesired network usage such as substantial over-utilization of the metered cellular link. In this paper, we propose MP-DASH, a multipath framework for video streaming with the awareness of network interface preferences from users. The basic idea behind MP-DASH is to strategically schedule video chunks' delivery and thus satisfy user preferences. MP-DASH can work with a wide range of off-the-shelf video rate adaptation algorithms with very small changes. Our extensive field studies at 33 locations in three U.S. states suggest that MP-DASH is very effective: it can reduce cellular usage by up to 99% and radio energy consumption by up to 85% with negligible degradation of QoE, compared with off-the-shelf MPTCP.
Original language | English (US) |
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Title of host publication | CoNEXT 2016 - Proceedings of the 12th International Conference on Emerging Networking EXperiments and Technologies |
Publisher | Association for Computing Machinery, Inc |
Pages | 129-143 |
Number of pages | 15 |
ISBN (Electronic) | 9781450342926 |
DOIs | |
State | Published - Dec 6 2016 |
Event | 12th ACM Conference on Emerging Networking Experiments and Technologies, ACM CoNEXT 2016 - Irvine, United States Duration: Dec 12 2016 → Dec 15 2016 |
Publication series
Name | CoNEXT 2016 - Proceedings of the 12th International Conference on Emerging Networking EXperiments and Technologies |
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Other
Other | 12th ACM Conference on Emerging Networking Experiments and Technologies, ACM CoNEXT 2016 |
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Country | United States |
City | Irvine |
Period | 12/12/16 → 12/15/16 |
Bibliographical note
Funding Information:We thank Rittwik Jana, Emir Halepovic, and the anonymous reviewers for their valuable comments and suggestions, and in particular Adrian Perrig for shepherding the paper. We thank Yeon-sup Lim, Xiufeng Xie, Xinyu Zhang, and Darijo Raca for their help to implement MP-DASH. Feng Qian's research was supported in part by National Science Foundation Grant CNS-1566331.
Keywords
- Adaptive video streaming
- Cellular
- DASH
- Multipath TCP
- Preference
- WiFi