摘要
通过仿真分析论述了Normalized BP-Based算法对于π-旋转LDPC码具有很好的译码性能,并对此算法它进行了定点分析,从仿真结果可知,使用BPSK调制时,在白高斯噪声信道下,Normalized BP-Based译码算法使用正确的量化方案时可以获得和浮点几乎一致的性能。
In this paper, firstly, it introduces the Normalized BP- Based algorithm and proves the good performance of decoding of the π-rotation LDPC codes based on this algorithm by simulations; then, it studies the quantization scheme for the algorithm of the π-rotation LDPC codes. Some simulation results are given, which show that almost the same performance as the floating - point can be obtained by designing properly ouantization schemes under AWGN channels.
出处
《信息技术》
2005年第11期38-40,43,共4页
Information Technology
