Multilevel Codes for the Fading Channel

本项目研究了多级码在衰落信道中的使用。可以观察到，由于关于这一点的性能度量不是欧几里德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码以实现期望的分集水平。此外，当使用多级编码时，多级和并行译码技术可以简化译码设计并最小化译码延迟。本项目对衰落信道和各种译码结构进行编码设计，以最小的成本获得高性能。另一个目标是将多级编码理论与多维编码理论相统一，并将可用于多级编码的距离和性能定理应用于多维码。

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.