A simplified log-MAP turbo decoder by fitting method
A simplified log-MAP turbo decoder by fitting method
复制标题
一种简化的log-MAP Turbo解码器的拟合方法
DOI：
10.1109/icact.2005.246085
复制
发表时间：
2005
期刊：
影响因子：
--
通讯作者：
Shunzheng Yu
中科院分区：
文献类型：
--
作者：
Lin Zhang;Shunzheng Yu
本文提出了一种简化的Log-MAP Turbo码译码器。SISO算法采用拟合的方法计算校正函数。在AWGN和平坦慢衰落信道下仿真了简化Turbo码译码器的误码率性能。基于3GPP 2 Turbo码编码器的仿真结果表明，该简化算法在复杂度和性能之间取得了较好的折衷。简化算法的编码增益比Max-Log-MAP Turbo码高0.3-0.5dB，而复杂度比Log-MAP算法低
This paper presents a simplified Log-MAP turbo decoder. The proposed SISO algorithm uses fitting method to calculate the correction function. BER performances of the simplified turbo decoder are simulated over AWGN and flat slow fading channel. Simulations based on 3GPP2 turbo encoder demonstrate that this simplified algorithm achieves a better compromise between the complexity and the performance. The coding gain of the simplified algorithm is 0.3-0.5dB higher than that of Max-Log-MAP turbo decoder, while the complexity is lower than that of Log-MAP algorithm