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Semi-iterative analog turbo decoding
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DOI：10.1109/TCSI.2007.897770.png)
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Abstract
En 中文
Based on multiple-slice turbo codes, a novel semi-iterative analog turbo decoding algorithm and its corresponding decoder architecture are presented. This work paves the way for integrating flexible analog decoders dealing with frame lengths over thousands of bits. The algorithm benefits from a partially continuous exchange of extrinsic information to improve decoding speed and correction performance. The proposed algorithm and architecture are applied to design an analog decoder for double-binary codes. Taking full advantage of multiple slice codes, the on-chip area is shown to be reduced by ten when compared to a conventional fully parallelized analog slice turbo decoder. The reconfigurable analog core area for frames of 40 bits up to 2432 bits is 37 mm(2) in a 0.25-mu m BiCMOS process.
Keywords:
analog decoding
multiple-slice turbo codes
turbo codes
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