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arXiv · 0808.3756

Approaching Blokh-Zyablov Error Exponent with Linear-Time Encodable/Decodable Codes

Zheng Wang·Jie Luo
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Abstract

Guruswami and Indyk showed in [1] that Forney's error exponent can be achieved with linear coding complexity over binary symmetric channels. This paper extends this conclusion to general discrete-time memoryless channels and shows that Forney's and Blokh-Zyablov error exponents can be arbitrarily approached by one-level and multi-level concatenated codes with linear encoding/decoding complexity. The key result is a revision to Forney's general minimum distance decoding algorithm, which enables a low complexity integration of Guruswami-Indyk's outer codes into the concatenated coding schemes.

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Zheng Wang, Jie Luo. 2009-01-09. Approaching Blokh-Zyablov Error Exponent with Linear-Time Encodable/Decodable Codes. https://doi.org/10.1109/lcomm.2009.090047

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