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Hybrid digital-analog source-channel coding for bandwidth Compression/Expansion
KTH, School of Electrical Engineering (EES), Communication Theory.ORCID iD: 0000-0002-7926-5081
2006 (English)In: IEEE Transactions on Information Theory, ISSN 0018-9448, E-ISSN 1557-9654, Vol. 52, no 8, 3757-3763 p.Article in journal (Refereed) Published
Abstract [en]

An approach to hybrid digital-analog (HDA) source-channel coding for the communication of analog sources over memoryless Gaussian channels is introduced. The HDA system, which exploits the advantages of both digital and analog systems, generalizes a scheme previously presented by the authors, and can operate for any bandwidth ratio (bandwidth compression and expansion). It is based on vector quantization and features turbo coding in its digital component and linear/nonlinear processing in its analog part. Simulations illustrate that, under both bandwidth compression and expansion modes of operation, the HDA system provides a robust and graceful performance with good reproduction fidelity for a wide range of channel conditions.

Place, publisher, year, edition, pages
2006. Vol. 52, no 8, 3757-3763 p.
Keyword [en]
additive white Gaussian noise (AWGN) channels, broadcasting, Gaussian sources, hybrid digital-analog coding, robust coding, source-channel coding, turbo codes, vector quantization, codes, design, covq
National Category
Computer and Information Science
Identifiers
URN: urn:nbn:se:kth:diva-15881DOI: 10.1109/TIT.2006.878212ISI: 000239408700029Scopus ID: 2-s2.0-33746595342OAI: oai:DiVA.org:kth-15881DiVA: diva2:333923
Note
QC 20100525 QC 20110927. Conference: IEEE International Symposium on Information Theory. WASHINGTON, DC. JUN 24-29, 2001 Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2017-12-12Bibliographically approved

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Skoglund, Mikael

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