论文标题
噪声回收
Noise Recycling
论文作者
论文摘要
我们引入了噪声回收，这种方法可增强受到相关噪声而无需关节解码的通道的解码性能。该方法可以与任何代码，代码速率和解码技术的组合一起使用。在该方法中，通过从接收的信号中减去其解码输出，从铅通道估算了噪声的连续实现。然后，该估计值用于提高经历相关噪声的正交通道解码的准确性。在此设计中，仅通过在编码后的噪声估计下提供噪声估计，频道相互帮助。在一个相关噪声的高斯 - 马尔科夫模型中，我们建设性确定使用简单连续的顺序的噪声回收能力比回收噪声更高。模拟说明了噪声回收，可以使用任何代码和解码器使用，并且在应用与增强速率区域相同的预定顺序时，噪声回收显示出块错误率（BLER）益处。最后，对于简短的代码，我们确定通过与赛车回收的噪声回收可以进行额外的改进，在该赛车中没有预先确定铅通道，而是根据解码器首先完成的苍蝇选择。
We introduce Noise Recycling, a method that enhances decoding performance of channels subject to correlated noise without joint decoding. The method can be used with any combination of codes, code-rates and decoding techniques. In the approach, a continuous realization of noise is estimated from a lead channel by subtracting its decoded output from its received signal. This estimate is then used to improve the accuracy of decoding of an orthogonal channel that is experiencing correlated noise. In this design, channels aid each other only through the provision of noise estimates post-decoding. In a Gauss-Markov model of correlated noise, we constructive establish that noise recycling employing a simple successive order enables higher rates than not recycling noise. Simulations illustrate noise recycling can be employed with any code and decoder, and that noise recycling shows Block Error Rate (BLER) benefits when applying the same predetermined order as used to enhance the rate region. Finally, for short codes we establish that an additional BLER improvement is possible through noise recycling with racing, where the lead channel is not pre-determined, but is chosen on the fly based on which decoder completes first.
