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Seamless Mobile Video Streaming over HTTP/2 with Gradual Quality Transitions
Hung T. LE Thang VU Nam PHAM NGOC Anh T. PHAM Truong Cong THANG
IEICE TRANSACTIONS on Communications
Publication Date: 2017/05/01
Online ISSN: 1745-1345
Type of Manuscript: PAPER
Category: Multimedia Systems for Communications
HTTP adaptive streaming, adaptation, HTTP/2, server push,
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HTTP Adaptive Streaming (HAS) has become a popular solution for media delivery over the mobile Internet. However, existing HAS systems are based on the pull-based HTTP/1.1 protocol, leading to high overheads (e.g., in terms of energy, processing, bandwidth) for clients, servers, as well as network nodes. The new HTTP/2 protocol provides a server push feature, which allows the client to receive more than one video segment for each request in order to reduce request-related overheads. In this study, we propose an adaptation method to leverage the push feature of HTTP/2. Our method takes into account not only the request-related overhead but also buffer stability and gradual transitions. The experimental results show that our proposed method performs well under strong throughput variations of mobile networks.