Turbo Codes: Moving Theory Into Practice

涡轮编码是一种令人兴奋的、相对较新的数字通信技术的传统名称，它能够接近香农理论所施加的理论极限。该技术最近受到了编码理论家的极大关注，但在这些编码技术得到广泛的实际应用之前，还存在许多实际的、面向工程的问题。我们建议在以下领域进行研究：(1)降低解码器延迟和复杂性；(2)开发流编码器和解码器架构；(3)低信噪比下的高效同步；(4)提高小机架涡轮系统的性能；(5)对信道建模误差的鲁棒性，无论是信噪比估计还是非高斯噪声估计；(6)在非相干或差分相干信道上使用turbo码。

Turbo coding is the conventional name given to an exciting and relatively new digital communication technique capable of approaching the theoretical limits imposed by Shannon theory. The technique has enjoyed enormous recent attention from coding theorists, but many practical, engineering-oriented issues remain before these coding techniques will see widescale practical implementation. We propose research in the areas of: (1) reduction of decoder latency and complexity; (2) developing stream encoder and decoder architectures; (3) efficient synchronization at low SNR; (4) improving performance of small-frame turbo systems; (5) robustness to channel modeling error, either in estimation of SNR or non-Gaussian noise; and (6) use of turbo codes on non-coherent or differentially-coherent channels.