ITR Collaborative Research: Toward Practical Graph-Based Coding Schemes For Reliable Wireless Communications

该项目侧重于数字通信系统设计的物理层，特别是针对噪声、衰落信道的基于图的差错控制编码技术的设计，例如在无线通信系统中遇到的那些信道。这项研究解决了那些使基于图的编码技术的实际实现成为问题的问题。这些问题包括：适合于高速实现的具有代数结构的LDPC和Turbo码的开发；适合于实际实时应用的中等分组长度的LDPC和Turbo码的开发；结合这些新的编码结构以在高数据速率应用中增加比特管的带宽高效编码调制方案的设计。这些新的编码方案的适应用于无线信道的衰落环境。

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.