High-throughput GPU-based LDPC decoding

Yang-Lang Chang; Cheng-Chun Chang; Min-Yu Huang; Bormin Huang

doi:10.1117/12.862716

24 August 2010 High-throughput GPU-based LDPC decoding

Yang-Lang Chang, Cheng-Chun Chang, Min-Yu Huang, Bormin Huang

Proceedings Volume 7810, Satellite Data Compression, Communications, and Processing VI; 781008 (2010) https://doi.org/10.1117/12.862716
Event: SPIE Optical Engineering + Applications, 2010, San Diego, California, United States

Abstract

Low-density parity-check (LDPC) code is a linear block code known to approach the Shannon limit via the iterative sum-product algorithm. LDPC codes have been adopted in most current communication systems such as DVB-S2, WiMAX, WI-FI and 10GBASE-T. LDPC for the needs of reliable and flexible communication links for a wide variety of communication standards and configurations have inspired the demand for high-performance and flexibility computing. Accordingly, finding a fast and reconfigurable developing platform for designing the high-throughput LDPC decoder has become important especially for rapidly changing communication standards and configurations. In this paper, a new graphic-processing-unit (GPU) LDPC decoding platform with the asynchronous data transfer is proposed to realize this practical implementation. Experimental results showed that the proposed GPU-based decoder achieved 271x speedup compared to its CPU-based counterpart. It can serve as a high-throughput LDPC decoder.

Citation Download Citation

Yang-Lang Chang, Cheng-Chun Chang, Min-Yu Huang, and Bormin Huang "High-throughput GPU-based LDPC decoding", Proc. SPIE 7810, Satellite Data Compression, Communications, and Processing VI, 781008 (24 August 2010); https://doi.org/10.1117/12.862716

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