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Proceedings Paper

Layer-based buffer aware rate adaptation design for SHVC video streaming
Author(s): Srinivas Gudumasu; Ahmed Hamza; Eduardo Asbun; Yong He; Yan Ye
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Paper Abstract

This paper proposes a layer based buffer aware rate adaptation design which is able to avoid abrupt video quality fluctuation, reduce re-buffering latency and improve bandwidth utilization when compared to a conventional simulcast based adaptive streaming system. The proposed adaptation design schedules DASH segment requests based on the estimated bandwidth, dependencies among video layers and layer buffer fullness. Scalable HEVC video coding is the latest state-of-art video coding technique that can alleviate various issues caused by simulcast based adaptive video streaming. With scalable coded video streams, the video is encoded once into a number of layers representing different qualities and/or resolutions: a base layer (BL) and one or more enhancement layers (EL), each incrementally enhancing the quality of the lower layers. Such layer based coding structure allows fine granularity rate adaptation for the video streaming applications. Two video streaming use cases are presented in this paper. The first use case is to stream HD SHVC video over a wireless network where available bandwidth varies, and the performance comparison between proposed layer-based streaming approach and conventional simulcast streaming approach is provided. The second use case is to stream 4K/UHD SHVC video over a hybrid access network that consists of a 5G millimeter wave high-speed wireless link and a conventional wired or WiFi network. The simulation results verify that the proposed layer based rate adaptation approach is able to utilize the bandwidth more efficiently. As a result, a more consistent viewing experience with higher quality video content and minimal video quality fluctuations can be presented to the user.

Paper Details

Date Published: 28 September 2016
PDF: 16 pages
Proc. SPIE 9971, Applications of Digital Image Processing XXXIX, 99711M (28 September 2016); doi: 10.1117/12.2235795
Show Author Affiliations
Srinivas Gudumasu, Aricent Technologies Ltd. (United States)
Ahmed Hamza, InterDigital Communications, Inc. (United States)
Eduardo Asbun, InterDigital Communications, Inc. (United States)
Yong He, InterDigital Communications, Inc. (United States)
Yan Ye, InterDigital Communications, Inc. (United States)

Published in SPIE Proceedings Vol. 9971:
Applications of Digital Image Processing XXXIX
Andrew G. Tescher, Editor(s)

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