Bandwidth efficient adaptive forward error correction mechanism with feedback channel
Abstract
Multimedia content is very sensitive to packet loss and therefore multimedia streams are typically protected against packet loss, either by supporting retransmission requests or by adding redundant forward error correction (FEC) data. However, the redundant FEC information introduces significant additional bandwidth requirements, as compared to the bitrate of the original video stream. Especially on wireless and mobile networks, bandwidth availability is limited and variable. In this article, an adaptive FEC (A-FEC) system is presented whereby the redundancy rate is dynamically adjusted to the packet loss, based on feedback messages from the client. We present a statistical model of our A-FEC system and validate the proposed system under different packet loss conditions and loss probabilities. The experimental results show that 57-95% bandwidth gain can be achieved compared with a static FEC approach.
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A small block is chosen for the FEC because larger block sizes result in longer reconstruction delays at the receiver.
“Moreover, a small block is chosen for the FEC as larger block sizes result in longer reconstruction delays at the receiver [44].”
From VQProtect: Lightweight Visual Quality Protection for Error-Prone Selectively Encrypted Video Streaming (2022) · cites this paper as [44]
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Sorted by citations
Gillani, S. M., Asghar, M. N., Shifa, A., Abdullah, S., Kanwal, N., & Fleury, M. (2022) · Entropy · doi:10.3390/e24060755 · Cited by 5 · see citing works
- Authors
- Ali, F. A., Simoens, P., Van de Meerssche, W., & Dhoedt, B.
- Affiliations
- Ghent University (BE)
- Department of Information Technology (INTEC), Ghent University-iMinds, Gaston Crommenlaan 8, bus 201, 9050 Ghent, Belgium
- Venue
- Journal of Communications and Networks
- Published
- 2014-06
- Volume
- 16
- Issue
- 3
- Pages
- 322-334
- ISSN
- 1229-2370 (ISSN-L)
- 1976-5541
- OpenAlex
- W2148413273
- Cited by
- 13
- References
- 0
- Citations by year
- 2025: 2 · 2022: 1 · 2021: 1 · 2019: 2 · 2018: 2 · 2017: 1 · 2016: 2 · 2015: 2
- FWCI
- 1.92
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Communications and Networks (publishedVersion)
- Ghent University Academic Bibliography (Ghent University) (submittedVersion)
- Topics
- Physical Sciences › Computer Science › Computer Networks and Communications › Network Traffic and Congestion Control
- Physical Sciences › Computer Science › Computer Networks and Communications › Error Correcting Code Techniques
- Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Image and Video Quality Assessment
- Keywords
- adaptive forward error correction, spectral efficiency, packet loss, feedback channel, streaming media, wireless networks, cellular networks, statistical modeling, retransmission
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