## Abstract Aimed at bridging the gap between the maximum likelihood and the suboptimal decoding schemes for short or medium LDPC codes, a generalised ordered statistic decoding (OSD), in the form of syndrome decoding, is presented in the paper. The OSD is invoked once when a nonzero decoding syndr
Construction, analysis and performance of generalised woven codes
β Scribed by Bossert, Martin ;Dieterich, Hans ;Schnug, Walter ;Shavgulidze, Sergo
- Publisher
- John Wiley and Sons
- Year
- 2004
- Tongue
- English
- Weight
- 203 KB
- Volume
- 15
- Category
- Article
- ISSN
- 1124-318X
- DOI
- 10.1002/ett.959
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β¦ Synopsis
Abstract
Generalised woven codes (WC) are constructed by combining the woven code structure with the idea of generalised concatenated codes, also known as multiβlevel codes. The required nested inner convolutional code is analysed. The encoder structure of this new class of codes is described and fundamental code parameters are derived. It is shown that generalised WC have a free distance which is superior to that of comparable WC. Several iterative and nonβiterative decoding strategies are discussed. It is shown that the decoding complexity of the nested inner code is not larger than the decoding complexity of its mother code. Finally, bit error rates obtained from simulations are discussed and compared with other code structures like WC. Copyright Β© 2004 AEI
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