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- W130349474 abstract "This chapter considers two aspects of joint cross-layer decoding. It shows the way redundancy at intermediate protocol layers may be combined with redundancy at APL layer to improve decoding performance. Following this, it focuses on iterative decoding. When taking all sources of redundancy simultaneously into account is not possible for complexity reasons, a solution is to use a fraction of the redundancy to perform a first decoding and to feed the results to a second decoder, exploiting the remaining part of the redundancy. The results of this second decoder may be fed back to the first decoder to correct residual errors. Iterations may be performed between both decoders until convergence. This “turbo-decoding” scheme, introduced for channel codes, is also interesting when one of the constituent codes is a source code presenting some redundancy. Joint source-channel iterative decoding can improve a lot the resulting images. Moreover, this can be obtained quite often at a reasonable cost; if properly used in a more realistic context where retransmissions (ARQs) are used, the iterations are performed only on the blocks that are erroneous." @default.
- W130349474 created "2016-06-24" @default.
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- W130349474 date "2010-01-01" @default.
- W130349474 modified "2023-09-26" @default.
- W130349474 title "Joint Cross-Layer Decoding" @default.
- W130349474 doi "https://doi.org/10.1016/b978-0-12-374449-4.00006-4" @default.
- W130349474 hasPublicationYear "2010" @default.
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