ITR: Collaborative Research: Towards Practical Graph -Based Coding Schemes for Realiable Wireless Communications

该项目的重点是数字通信系统设计的物理层，特别是针对噪声、衰落信道（例如无线通信系统中遇到的信道）的基于图的错误控制编码技术的设计。 该研究解决了这些问题，使实际实现基于图的编码技术的问题。 这些问题包括：发展适合高速实现的具有代数结构的LDPC码和Turbo码;发展适合实际实时应用的具有中等块长度的LDPC码和Turbo码;结合这些新的码结构设计带宽有效的编码调制方案，以便在高数据速率应用中“增加比特管道”;适应这些新的编码方案，以用于以无线信道为特征的衰落环境。

This project focuses on the physical layer of digital communicationsystem design - in particular on the design of graph-based errorcontrol coding techniques for noisy, fading channels, such as thoseencountered in wireless communication systems. The researchaddresses those issues that have made practical implementation ofgraph-based coding techniques problematic. Those issues include:The development of LDPC and turbo codes with algebraic structure,suitable for high speed implementation.The development of LDPC and turbo codes with moderate block length,suitable for practical real-time applications.The design of bandwidth efficient coded modulation schemesincorporating these new code constructions in order to "fatten thebit pipe" in high data rate applications.The adaptation of these new coding schemes for use in the fadingenvironment that characterizes wireless channels.