Publication

Application Layer Forward Error Correction for Mobile Multimedia Broadcasting

2008
Book Chapters

Abstract

Application Layer Forward Error Correction (AL-FEC) is an innovative way to provide reliability in mobile broadcast systems. Conventional data such as multimedia files or multimedia streams are extended with repair information which can be used to recover lost data at the receiver. AL-FEC is integrated into content delivery protocols (CDPs) to support reliable delivery. Several standardization committees such as 3GPP and DVB have recognized the importance of AL-FEC and have standardized Raptor codes as the most powerful FEC codes to be used for such applications. The major characteristics of Raptor codes are channel efficiency, low-complexity, and flexibility. An important consideration when using application layer codes is system integration. With the right system design including AL-FEC, the efficiency and/or quality of delivery services can be significantly enhanced. This work shows these benefits in selected use cases, specifically focussing on 3G based multimedia broadcasting within the MBMS standard.

Official source

https://infoscience.epfl.ch/entities/publication/8c4be6df-e2da-47ba-8ac6-3e8b5c912466

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2008
Book Chapters

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/8c4be6df-e2da-47ba-8ac6-3e8b5c912466

About this result

Related concepts (32)

Error correction code

In computing, telecommunication, information theory, and coding theory, forward error correction (FEC) or channel coding is a technique used for controlling errors in data transmission over unreliable or noisy communication channels. The central idea is that the sender encodes the message in a redundant way, most often by using an error correction code or error correcting code (ECC). The redundancy allows the receiver not only to detect errors that may occur anywhere in the message, but often to correct a limited number of errors.

Mobile television

Mobile television is television watched on a small handheld or mobile device, typically developed for that purpose. It includes service delivered via mobile phone networks, received free-to-air via terrestrial television stations, or via satellite broadcast. Regular broadcast standards or special mobile TV transmission formats can be used. Additional features include downloading TV programs and podcasts from the Internet and storing programming for later viewing.

Error detection and correction

In information theory and coding theory with applications in computer science and telecommunication, error detection and correction (EDAC) or error control are techniques that enable reliable delivery of digital data over unreliable communication channels. Many communication channels are subject to channel noise, and thus errors may be introduced during transmission from the source to a receiver. Error detection techniques allow detecting such errors, while error correction enables reconstruction of the original data in many cases.

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Application Layer Forward Error Correction for Mobile Multimedia Broadcasting

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