Buffer-Based Rate Adaptation Scheme for HTTP Video Streaming with Consistent Quality

Jiwoo Park1, Minsu Kim1 and Kwangsue Chung1

  1. Department of Electronics and Communications Engineering, Kwangwoon University
    Seoul, South Korea
    {jwpark, mskim}@cclab.kw.ac.kr, kchung@kw.ac.kr

Abstract

Recently, HyperText Transfer Protocol (HTTP) based adaptive streaming (HAS) has been proposed as a solution for efficient use of network resources. HAS performs rate adaptation that adjusts the video quality according to the network conditions. The conventional approaches for rate adaptation involve accurately estimating the available bandwidth or exploiting the playback buffer in HAS clients rather than estimating the network bandwidth. In this paper, we present a playback buffer model for rate adaptation and propose a new buffer-based rate adaptation scheme. First, we model the playback buffer as a queueing system that stores video segments. The proposed scheme selects the next video bitrate that minimizes the difference between the current buffer occupancy and the expected value from the playback buffer model. The evaluation results indicated that the proposed scheme achieves higher video quality than conventional algorithms and can cope with various environments without the tuning of the configuration parameters.

Key words

adaptive algorithms, queueing analysis, streaming media, transport protocols

Digital Object Identifier (DOI)

https://doi.org/10.2298/CSIS200820021P

Publication information

Volume 18, Issue 4 (September 2021)
Year of Publication: 2021
ISSN: 1820-0214 (Print) 2406-1018 (Online)
Publisher: ComSIS Consortium

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How to cite

Park, J., Kim, M., Chung, K.: Buffer-Based Rate Adaptation Scheme for HTTP Video Streaming with Consistent Quality. Computer Science and Information Systems, Vol. 18, No. 4, 1139–1157. (2021), https://doi.org/10.2298/CSIS200820021P