Multilevel Codes for the Fading Channel

本项目探讨了衰落信道中多级码的使用。可以观察到，由于这方面的性能指标不是欧几里得距离，而是错误事件长度，因此多级码提供了一种简单而有效的方法来设计代码，以实现所需的多样性水平。此外，多级和并行译码技术可以简化译码器的设计，并最大限度地减少译码延迟。本课题针对衰落信道和各种解码器结构进行编码设计，以期以最小的成本实现高性能。多层编码理论与多维编码理论的统一，以及多层码的距离定理和性能定理在多维码中的应用是另一个目标。

This project examines the use of multilevel codes for the fading channel. It is observed that, since the performance metric on this is not Euclidean distance but error event length, multilevel codes provide a simple yet effective means of designing codes to achieve a desired level of diversity. In addition, multistage and parallel decoding techniques can simply decoder design and minimize decoding delay when multilevel codes are used. This project undertakes code design for the fading channel and various decoder structures in order to achieve high performance at minimum cost. Unification of multilevel coding theory with multidimensional coding theory, and application of distance and performance theorems available for multilevel codes to multidimensional codes is another goal.