This paper presents a software turbo decoder on graphics processing units(GPU).Unlike previous works,the proposed decoding architecture for turbo codes mainly focuses on the Consultative Committee for Space Data Syste...This paper presents a software turbo decoder on graphics processing units(GPU).Unlike previous works,the proposed decoding architecture for turbo codes mainly focuses on the Consultative Committee for Space Data Systems(CCSDS)standard.However,the information frame lengths of the CCSDS turbo codes are not suitable for flexible sub-frame parallelism design.To mitigate this issue,we propose a padding method that inserts several bits before the information frame header.To obtain low-latency performance and high resource utilization,two-level intra-frame parallelisms and an efficient data structure are considered.The presented Max-Log-Map decoder can be adopted to decode the Long Term Evolution(LTE)turbo codes with only small modifications.The proposed CCSDS turbo decoder at 10 iterations on NVIDIA RTX3070 achieves about 150 Mbps and 50Mbps throughputs for the code rates 1/6 and 1/2,respectively.展开更多
文章介绍一种结合权重学习的Turbo解码器,同时集成了传统的Turbo解码方法Max-Log-MAP,和传统的Max-Log-MAP方法具有相同的复杂度。基于传统的解码方法结合神经网络计算更为精确的权重,可实现误码率更低的解码结果,和传统解码方式Max-Log...文章介绍一种结合权重学习的Turbo解码器,同时集成了传统的Turbo解码方法Max-Log-MAP,和传统的Max-Log-MAP方法具有相同的复杂度。基于传统的解码方法结合神经网络计算更为精确的权重,可实现误码率更低的解码结果,和传统解码方式Max-Log-MAP进行对比,在加性高斯白噪声(Additive White Gaussian Noise,AWGN)信道上具有更好的解码效果。通过仿真结果证明,该网络的解码误码率比传统的解码方法更小。展开更多
基金supported by the Fundamental Research Funds for the Central Universities(FRF-TP20-062A1)Guangdong Basic and Applied Basic Research Foundation(2021A1515110070)。
文摘This paper presents a software turbo decoder on graphics processing units(GPU).Unlike previous works,the proposed decoding architecture for turbo codes mainly focuses on the Consultative Committee for Space Data Systems(CCSDS)standard.However,the information frame lengths of the CCSDS turbo codes are not suitable for flexible sub-frame parallelism design.To mitigate this issue,we propose a padding method that inserts several bits before the information frame header.To obtain low-latency performance and high resource utilization,two-level intra-frame parallelisms and an efficient data structure are considered.The presented Max-Log-Map decoder can be adopted to decode the Long Term Evolution(LTE)turbo codes with only small modifications.The proposed CCSDS turbo decoder at 10 iterations on NVIDIA RTX3070 achieves about 150 Mbps and 50Mbps throughputs for the code rates 1/6 and 1/2,respectively.
文摘文章介绍一种结合权重学习的Turbo解码器,同时集成了传统的Turbo解码方法Max-Log-MAP,和传统的Max-Log-MAP方法具有相同的复杂度。基于传统的解码方法结合神经网络计算更为精确的权重,可实现误码率更低的解码结果,和传统解码方式Max-Log-MAP进行对比,在加性高斯白噪声(Additive White Gaussian Noise,AWGN)信道上具有更好的解码效果。通过仿真结果证明,该网络的解码误码率比传统的解码方法更小。
