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Density Evolution Analysis of Braided Convolutional Codes on the Erasure Channel

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Author

Summary, in English

Braided convolutional codes (BCCs) are a class of spatially coupled turbo-like codes with a structure that is similar to product codes or generalized LDPC codes. We derive explicit input/output transfer functions of the component convolutional decoders for the binary erasure channel (BEC). These are then used to formulate exact density evolution equations for blockwise BCCs under belief propagation (BP) decoding with optimal component APP decoders. Thresholds are computed for the coupled and uncoupled case, which is equivalent to tailbiting. Due to the relatively high rate of the component codes a significant threshold improvement by spatial coupling can be observed.

Publishing year

2014

Language

English

Pages

2609-2613

Publication/Series

[Host publication title missing]

Document type

Conference paper

Publisher

IEEE - Institute of Electrical and Electronics Engineers Inc.

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Conference name

IEEE International Symposium on Information Theory (ISIT), 2014

Conference date

2014-06-29 - 2014-07-04

Conference place

Honolulu, HI, United States

Status

Published

Research group

  • Telecommunication Theory