Enhancing the LT Component of Raptor Codes for Inactivation Decoding

Conference: SCC 2015 - 10th International ITG Conference on Systems, Communications and Coding
02/02/2015 - 02/05/2015 at Hamburg, Germany

Proceedings: ITG-Fb 254: 10th International ITG Conference on Systems, Communications and Coding (SCC 2015)

Pages: 6Language: englishTyp: PDF

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Authors:
Blasco, Francisco Lazaro; Liva, Gianluigi (Institute of Communications and Navigation, DLR (German Aerospace Center), 82234 Wessling, Germany)
Bauch, Gerhard (Institute for Telecommunication, Hamburg University of Technology, Hamburg, Germany)

Abstract:
Based on recent results on the performance of LT codes under inactivation decoding, we show how to design the LT component of a Raptor code aiming at minimizing the decoding complexity under inactivation decoding. We provide a LT code design which has a lower decoding complexity compared to standardized Raptor codes while having exactly the same average encoding complexity and a similar probability of decoding failure. The proposed LT code would allow to increase the decoding throughput of raptor codes.