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bib
--- Timezone: UTC
Creation date: 2025-02-19
Creation time: 08-41-32
--- Number of references
1
inproceedings
inproceedingsreference201001227195395138
Iterative Source-Channel Decoding with Cross-Layer Support for Wireless VoIP
2010
1
18
1
1-6
This paper presents a cross-layer approach for iterative source-channel decoding (ISCD) in wireless VoIP networks. The novelty of the proposed method is the incorporation of both, speech bits as well as protocol header bits, into the ISCD process. The header bits take the role of pilot bits having perfect reliability. These bits are distributed over the frame as strong supporting points for the MAP decoder which results in a significant enhancement of the output speech quality compared to the benchmark scheme using ISCD for speech only. For this approach, we exploit new cross-layer concepts that support the direct communication between non-adjacent layers. These concepts enable the iterative exchange of extrinsic information between the source decoder located on the application layer and the channel decoder located on the physical layer. This technique can also be applied to audio and video transmission.
refector
fileadmin/papers/2010/2010-01-scc-breddermann-iscd.pdf
CD-ROM / DVD-ROM
Rudolf Mathar, Christoph Ruland
VDE Verlag
Berlin, Germany
Proceedings of International ITG Conference on Source and Channel Coding
Proceedings of International ITG Conference on Source and Channel Coding
ITG
Siegen
International ITG Conference on Source and Channel Coding 2010
January 18-21, 2010
en
978-3-8007-3211-1
1
TobiasBreddermann
HelgeLueders
PeterVary
IsmetAktas
FlorianSchmidt