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Online source rate control for adaptive video streaming over HSPA and LTE-style variable bit rate downlink channels

Online source rate control for adaptive video streaming over HSPA and LTE-style variable bit rate downlink channels
Online source rate control for adaptive video streaming over HSPA and LTE-style variable bit rate downlink channels
Online source rate control is designed for video streaming over HSPA and LTE-style Variable BitRate (VBR) downlink channels. The problem is formulated as the adaptive adjustment of the operational mode of a video encoder based on the buffer overflow probability (BOP) feedback received from the Radio Link Control (RLC) layer at base station. This allows us to maximize the attainable visual quality, while keeping the transmitter buffer overflow probability below a desired threshold as well as maintaining as low a video delay as possible. We derive an online measurement based BOP estimation model for the RLC buffer, which is capable of operating without any prior knowledge of the channel variations and of the video characteristics. Based on this estimation model, an online adaptive rate control algorithm is proposed in order to seamlessly adapt the bit stream to the characteristics of VBR channels. Our experiments are conducted in multiuser scenarios using VBR video encoding combined with adaptive modulation and coding (AMC) in the transceiver. The results demonstrate that the proposed source rate control regime supports near-instantaneous, yet smooth bit stream adaptability, which makes it useful for HSPA and LTE-style systems for the sake of accommodating unknown video traffic characteristics and dynamically fluctuating propagation conditions
0018-9545
1-32
Yang, Jian
32e8b622-9602-48ff-8e89-71c9e0ac1e64
Ran, Yongyi
5e659015-9b15-4cb2-b2eb-2211ed302773
Cheng, Shuangwu
c1065934-1218-4e22-8400-7c324611b482
Li, Weiping
49f2219b-7c88-4058-80fc-161cf842202f
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Yang, Jian
32e8b622-9602-48ff-8e89-71c9e0ac1e64
Ran, Yongyi
5e659015-9b15-4cb2-b2eb-2211ed302773
Cheng, Shuangwu
c1065934-1218-4e22-8400-7c324611b482
Li, Weiping
49f2219b-7c88-4058-80fc-161cf842202f
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1

Yang, Jian, Ran, Yongyi, Cheng, Shuangwu, Li, Weiping and Hanzo, Lajos (2014) Online source rate control for adaptive video streaming over HSPA and LTE-style variable bit rate downlink channels. IEEE Transactions on Vehicular Technology, 1-32. (doi:10.1109/TVT.2015.2398515).

Record type: Article

Abstract

Online source rate control is designed for video streaming over HSPA and LTE-style Variable BitRate (VBR) downlink channels. The problem is formulated as the adaptive adjustment of the operational mode of a video encoder based on the buffer overflow probability (BOP) feedback received from the Radio Link Control (RLC) layer at base station. This allows us to maximize the attainable visual quality, while keeping the transmitter buffer overflow probability below a desired threshold as well as maintaining as low a video delay as possible. We derive an online measurement based BOP estimation model for the RLC buffer, which is capable of operating without any prior knowledge of the channel variations and of the video characteristics. Based on this estimation model, an online adaptive rate control algorithm is proposed in order to seamlessly adapt the bit stream to the characteristics of VBR channels. Our experiments are conducted in multiuser scenarios using VBR video encoding combined with adaptive modulation and coding (AMC) in the transceiver. The results demonstrate that the proposed source rate control regime supports near-instantaneous, yet smooth bit stream adaptability, which makes it useful for HSPA and LTE-style systems for the sake of accommodating unknown video traffic characteristics and dynamically fluctuating propagation conditions

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tvt-hanzo-2398515-proof.pdf - Accepted Manuscript
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More information

e-pub ahead of print date: 30 January 2014

Identifiers

Local EPrints ID: 374496
URI: http://eprints.soton.ac.uk/id/eprint/374496
ISSN: 0018-9545
PURE UUID: b3dd753a-c8c6-4bf4-a063-c53b34c80c82
ORCID for Lajos Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

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Date deposited: 20 Feb 2015 09:03
Last modified: 18 Mar 2024 02:35

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Contributors

Author: Jian Yang
Author: Yongyi Ran
Author: Shuangwu Cheng
Author: Weiping Li
Author: Lajos Hanzo ORCID iD

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