Layer-Assisted Video Quality Adaptation for Improving QoE in Wireless Networks

Park, Jinho; Chung, Kwangsue

doi:10.1109/access.2020.2989797

Cited by 4 publications

(6 citation statements)

References 27 publications

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“…H2BR utilizes server push, stream multiplexing, stream priority, and request cancellation to select suitable qualities for upgraded segments after the ABR makes a decision on the quality for the next segment. A segment is upgraded by an additional enhancement layer in SVC [34] or a higher-bitrate segment in the non-scalable coded video. Both these works are dependent on the ABR algorithm deployed at the client; hence, their performances vary according to the different ABRs.…”

Section: Related Workmentioning

confidence: 99%

DoFP+: An HTTP/3-Based Adaptive Bitrate Approach Using Retransmission Techniques

et al. 2022

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HTTP Adaptive Streaming (HAS) solutions use various adaptive bitrate (ABR) algorithms to select suitable video qualities with the objective of coping with the variations of network connections. HTTP has been evolving with various versions and provides more and more features. Most of the existing ABR algorithms do not significantly benefit from the HTTP development when they are merely supported by the most recent HTTP version. An open research question is "How can new features of the recent HTTP versions be used to enhance the performance of HAS?" To address this question, in this paper, we introduce Days of Future Past+ (DoFP+ for short), a heuristic algorithm that takes advantage of the features of the latest HTTP version, HTTP/3, to provide high Quality of Experience (QoE) to the viewers. DoFP+ leverages HTTP/3 features, including (i) stream multiplexing, (ii) stream priority, and (iii) request cancellation to upgrade lowquality segments in the player buffer while downloading the next segment. The qualities of those segments are selected based on an objective function and throughput constraints. The objective function takes into account two factors, namely the (i) average bitrate and the (ii) video instability of the considered set of segments. We also examine different strategies of download order for those segments to optimize the QoE in limited resources scenarios. The experimental results show an improvement in QoE by up to 33% while the number of stalls and stall duration for DoFP+ are reduced by 86% and 92%, respectively, compared to state-of-the-art ABR schemes. In addition, DoFP+ saves on average up to 16% downloaded data across all test videos. Also, we find that downloading segments sequentially brings more benefits for retransmissions than concurrent downloads; and lower-quality segments should be upgraded before other segments to gain more QoE improvement. Our source code has been published for reproducibility at https://github.com/cdathena/DoFP-Plus.

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Section: Related Workmentioning

confidence: 99%

DoFP+: An HTTP/3-Based Adaptive Bitrate Approach Using Retransmission Techniques

et al. 2022

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“…The OFF period is a section that consumes the buffer after downloading all requested segments. The OFF periods are periodically generated by existing rate adaptation algorithms [22,23]. In the 5G environment, the client has a long OFF period due to the large difference between the available bandwidth and the bitrate.…”

Section: Request Policy Of Multipath-based Http Adaptive Streamingmentioning

confidence: 99%

“…To prevent the out-of-order problem, segments are requested using the ratio of the expected download time, as in (22).…”

Section: Segment Schedulingmentioning

confidence: 99%

Multipath-Based HTTP Adaptive Streaming Scheme for the 5G Network

Kim

Chung

2020

IEEE Access

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“…ℎ and ℎ − are calculated by dividing the size of the requested sub-block for each path and the time to download the sub-blocks as shown in (4).…”

Section: B Block-based Bandwidth Estimationmentioning

confidence: 99%

“…Due to the increasing demand for video streaming services, it has become more important to provide a high quality of experience (QoE) to users. The most popular video streaming method that is used by many researchers and practitioners is a hypertext transfer protocol (HTTP) adaptive streaming (HAS) [2][3][4], which provides continuous video playback via adaptive quality selection, according to the network changes.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Block-Based HTTP Adaptive Streaming Scheme in Multiple Wireless Networks

2020

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Multipath-based hypertext transfer protocol (HTTP) adaptive streaming (MPHAS) has been studied due to the increasing use of mobile devices equipped with multiple network interfaces and the prevalence of high-quality video streaming services. However, the existing MPHAS schemes undergo a degraded quality of experience (QoE) in multiple wireless networks. The segment request-based MPHAS (SR-MPHAS) encounters frequent quality switching, and the block request-based MPHAS (BR-MPHAS) causes results in playback stalling and inefficient bandwidth utilization, according to slow responsiveness. In this paper, we propose a dynamic block-based MPHAS (DBAS) to improve the QoE by overcoming the limitations of the existing schemes in multiple wireless networks. We propose buffer-based block length adaptation and QoE-based block quality adaptation to reduce the frequency of quality switching and to improve the responsiveness to network changes. Moreover, we propose a partial request-based block scheduler to mitigate segment reordering. The experimental results show that the DBAS improves the QoE by reducing the quality switching frequency and rapidly adapting to abrupt changes in the bandwidth.INDEX TERMS HTTP adaptive streaming, multipath-based transmission, multiple wireless networks, quality of experience.

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Layer-Assisted Video Quality Adaptation for Improving QoE in Wireless Networks

Cited by 4 publications

References 27 publications

DoFP+: An HTTP/3-Based Adaptive Bitrate Approach Using Retransmission Techniques

DoFP+: An HTTP/3-Based Adaptive Bitrate Approach Using Retransmission Techniques

Multipath-Based HTTP Adaptive Streaming Scheme for the 5G Network

Dynamic Block-Based HTTP Adaptive Streaming Scheme in Multiple Wireless Networks

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