Error-resilient transmission of waveform signals using overcomplete expansions and soft-input source decoding

Jorg Kliewer, Alfred Mertins

Abstract

In this paper we present a new approach for robust transmission of waveform signals over noisy channels, where explicit symbol-based redundancy is added to the source signal for error protection by using an overcomplete block transform prior to quantization. This approach is in contrast to commonly used schemes for joint source-channel coding which employ binary channel encoding after the quantization stage. At the decoder, a soft-input soft-output source decoding approach is applied, which allows us to efficiently exploit the explicit redundancy introduced in the continuous amplitude domain. The performance of the proposed approach is evaluated for different code constructions based on the DFT, the DCT, and the discrete Hadamard transform.

OriginalspracheEnglisch
Titel2004 12th European Signal Processing Conference
Seitenumfang4
Herausgeber (Verlag)IEEE
Erscheinungsdatum03.04.2015
Seiten881-884
Aufsatznummer7080140
ISBN (Print)978-320000165-7
PublikationsstatusVeröffentlicht - 03.04.2015
Veranstaltung12th European Signal Processing Conference
- Vienna, Österreich
Dauer: 06.09.200410.09.2004
Konferenznummer: 115662

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