Channel coding and transmission aspects for wireless multimedia

Multimedia transmission has to handle a variety of compressed and uncompressed source signals such as data, text, image, audio, and video. On wireless channels the error rates are high and joint source/channel coding and decoding methods are advantageous. Also, the system architecture has to adapt t...

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Vydáno v:Proceedings of the IEEE Ročník 87; číslo 10; s. 1764 - 1777
Hlavní autoři: Hagenauer, J., Stockhammer, T.
Médium: Journal Article
Jazyk:angličtina
Vydáno: IEEE 1999
Témata:
Channel coding
Channels
Coding
Decoding
Delay
Design engineering
Error analysis
Error correction
Error correction codes
Errors
Image coding
Mobile communication
Multimedia
Speech
Texts
Video compression
ISSN:0018-9219
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Popis
Shrnutí:Multimedia transmission has to handle a variety of compressed and uncompressed source signals such as data, text, image, audio, and video. On wireless channels the error rates are high and joint source/channel coding and decoding methods are advantageous. Also, the system architecture has to adapt to the bad channel conditions. Several examples of a joint design are given. We especially advocate the use of rate-compatible punctured systematic recursive convolutional (RCPRSC) codes which are show to lead to a straightforward and versatile unequal error protection (UEP) design. In addition, the high-end receiver could use soft outputs and source-controlled channel decoding for even better performance.
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ISSN:0018-9219
DOI:10.1109/5.790636