Publications – Details
Iterative Source-Channel Decoding with Code Rates near r = 1
- Authors:
- Marc Adrat and Peter Vary
- Book Title:
- Proceedings of IEEE International Conference on Communications (ICC)
- Volume:
- 2
- Venue:
- Paris, France
- Date:
- June 2004
- Pages:
- 877–880
- Language:
- English
Abstract
We propose a specific channel encoder to support error concealment of mutually independent source codec parameters. To introduce artificial dependencies a recursive non-systematic convolutional (RNSC) code is applied which exhibits a code rate near r = 1. The channel encoder may be considered as a smearing filter. A TURBO-like exploitation of artificial dependencies and of residual source redundancy according to the iterative source-channel decoding (ISCD) algorithm permits step-wise quality improvements. Previously known error concealment techniques are outperformed in the most interesting range of channel conditions.
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