NDLI: A low latency scheduling approach for high definition video streaming over heterogeneous wireless networks

Content Provider	IEEE Xplore Digital Library
Author	Jiyan Wu Jingqi Yang Xiaokun Wu Junliang Chen
Copyright Year	2013
Description	Author affiliation: State Key Lab. of Networking & Switching Technol., Beijing Univ. of Posts & Telecommun., Beijing, China (Jiyan Wu; Jingqi Yang; Xiaokun Wu; Junliang Chen)
Abstract	We consider the problem of high definition video transmission in a heterogeneous wireless network from a video server to a multihomed client. On one hand, a single wireless network is limited in transmission performance (e.g., available bandwidth and link delay); On the other hand, the high definition video streaming is characterized by high transmission rate and large-size video frames. Thus, the end-to-end video frame delay becomes a severely challenging problem which is critical for real-time video applications. In this paper, we propose a novel scheduling approach named SFL, which deliberately splits large-size video frames into sub-frames and dispatches each of them onto a different wireless network to the multihomed client. This approach is able to improve the frame-level delay performance for enhancing video quality. We formulate a optimization problem of video streaming allocation for minimizing the end-to-end delay based on the network calculus and derive its solution with the water filling algorithm. We evaluate the performance of the proposed SFL through Exata emulations using real-time H.264 video streaming. Emulation results show that SFL outperforms existing frame level scheduling approaches in improving frame-level delay as well as in enhancing video quality in terms of PSNR (Peak Signal-to-Noise Ratio).
Sponsorship	IEEE Commun. Soc.
Starting Page	1723
Ending Page	1729
File Size	892539
Page Count	7
File Format	PDF
ISBN	9781479913534
DOI	10.1109/GLOCOM.2013.6831322
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-12-09
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Streaming media Delays Wireless networks Resource management Bandwidth Emulation Mobile communication
Content Type	Text
Resource Type	Article

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