NDLI: A proposed decoding scheme for robust error correction in advanced ATSC Systems

Content Provider	IEEE Xplore Digital Library
Author	Stoerte, C. Machmerth, M.
Copyright Year	2009
Description	Author affiliation: University of Wuppertal, Faculty of Electrical, Information and Media Engineering, Chair of Communications Technologies, 42119, Germany (Stoerte, C.; Machmerth, M.)
Abstract	This paper describes an advanced decoding scheme for ATSC Systems. To improve the reception under dynamic propagation conditions an Advanced VSB (A-VSB) was proposed. One of the new features in this transmission system is the improved performance of forward error correction. To use the full capacity of this redundancy information, an optimum decoding algorithm is essential. Most receivers use a soft-output Viterbi algorithm as convolutional decoding which offers the opportunity of adapting likelihood paths easily. Not only Reed-Solomon corrected packets might be fed back to the Viterbi decoder and can be used as soft-input information. Even transport stream sequences, which appear periodically, could be useful for an optimum convolutional decoder. This paper shows an example, how transport stream information might be used as additional forward error correction. Finally, results of the improvements are shown as bit-error probability in AWGN channel at the convolutional decoders output.
Starting Page	86
Ending Page	89
File Size	1167348
Page Count	4
File Format	PDF
ISBN	9781424429752
DOI	10.1109/ISCE.2009.5156855
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-05-25
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Robustness Error correction Viterbi algorithm Iterative decoding Redundancy Reed-Solomon codes TV Consumer electronics Communications technology Forward error correction MPEG-2 8 VSB A-VSB ATSC
Content Type	Text
Resource Type	Article

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