Interconnection framework for high-throughput, flexible LDPC decoders
Proceedings of the conference on Design, automation and test in Europe: Designers' forum
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
A Turbo-Decoding Message-Passing Algorithm for Sparse Parity-Check Matrix Codes
IEEE Transactions on Signal Processing
Factor graphs and the sum-product algorithm
IEEE Transactions on Information Theory
A 4.32 mm2 170mW LDPC decoder in 0.13μm CMOS for WiMax/Wi-Fi applications
Proceedings of the 16th Asia and South Pacific Design Automation Conference
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A programmable architecture is proposed for a flexi-mode quasi-cyclic low-density parity-check code decoder. The proposed architecture has the following advantages: 1) Code rate, length, and pattern can be programmed on the fly; 2) decoding complexity is reduced by algorithm modification; 3) memory read/write operation is reduced by access optimization and hierarchical memory structure; and 4) an early stopping scheme is adopted to give power efficiency, particularly in the low-signal-to-noise-ratio region. A decoder chip is implemented in an SMIC 180-nm 1.8-V CMOS technology. Experimental results show the advantages in terms of flexibility, area, power, and error-correction performance.