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Article Dans Une Revue IEEE Transactions on Circuits and Systems I: Regular Papers Année : 2007

Semi-iterative analog turbo decoding

Cyril Lahuec
Fabrice Seguin
David Gnaedig
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Michel Jezequel

Résumé

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 ${hbox {mm}}^{2}$ in a 0.25-$mu{hbox {m}}$ BiCMOS process.

Dates et versions

hal-01801701 , version 1 (28-05-2018)

Identifiants

Citer

Matthieu Arzel, Cyril Lahuec, Fabrice Seguin, David Gnaedig, Michel Jezequel. Semi-iterative analog turbo decoding. IEEE Transactions on Circuits and Systems I: Regular Papers, 2007, 54 (6), pp.1305 - 1316. ⟨10.1109/TCSI.2007.897770⟩. ⟨hal-01801701⟩
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