Expanding window fountain codes for unequal error protection
A novel approach to provide unequal error protection (UEP) using rateless codes over erasure channels, named Expanding Window Fountain (EWF) codes, is developed and discussed. EWF codes use a windowing technique rather than a weighted (non-uniform) selection of input symbols to achieve UEP property....
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Veröffentlicht in: | IEEE transactions on communications 2009-09, Vol.57 (9), p.2510-2516 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | A novel approach to provide unequal error protection (UEP) using rateless codes over erasure channels, named Expanding Window Fountain (EWF) codes, is developed and discussed. EWF codes use a windowing technique rather than a weighted (non-uniform) selection of input symbols to achieve UEP property. The windowing approach introduces additional parameters in the UEP rateless code design, making it more general and flexible than the weighted approach. Furthermore, the windowing approach provides better performance of UEP scheme, which is confirmed both theoretically and experimentally. |
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ISSN: | 0090-6778 1558-0857 |
DOI: | 10.1109/TCOMM.2009.09.070616 |