4 research outputs found
Parallel Nonbinary LDPC Decoding on GPU
Nonbinary Low-Density Parity-Check (LDPC) codes
are a class of error-correcting codes constructed over the Galois
field GF(q) for q > 2. As extensions of binary LDPC codes,
nonbinary LDPC codes can provide better error-correcting
performance when the code length is short or moderate, but
at a cost of higher decoding complexity. This paper proposes a
massively parallel implementation of a nonbinary LDPC decoding
accelerator based on a graphics processing unit (GPU) to
achieve both great flexibility and scalability. The implementation
maps the Min-Max decoding algorithm to GPU鈥檚 massively
parallel architecture. We highlight the methodology to partition
the decoding task to a heterogeneous platform consisting of the
CPU and GPU. The experimental results show that our GPUbased
implementation can achieve high throughput while still
providing great flexibility and scalability.National Science Foundation (NSF
Codificaci贸n para correcci贸n de errores con aplicaci贸n en sistemas de transmisi贸n y almacenamiento de informaci贸n
Tesis (DCI)--FCEFN-UNC, 2013Trata de una t茅cnica de dise帽o de c贸digos de chequeo de paridad de baja densidad ( m谩s conocidas por sigla en ingles como LDPC) y un nuevo algoritmo de post- procesamiento para la reducci贸n del piso de erro