Turbo Code Principle and Application Technology

Author: Liu Donghua
Publisher:
Publish Date: 2004-01-01
Features: The proposal of Turbo codes has had a profound impact on the research in channel coding. First, Turbo codes provide a cascade coding scheme with excellent performance under low signal-to-noise ratio conditions and a suboptimal iterative decoding method. Second, it has changed the mindset of researchers in designing good codes, shifting from maximizing codeword distance to minimizing the number of low-weight codewords, and has also altered the criteria for evaluating good codes, moving from comparison with cutoff rates to comparison with Shannon theory limits. Third, the iterative idea of Turbo codes has provided new insights for iterative channel estimation, iterative equalization, and signal detection. Since the 1990s, significant achievements have been made in the theoretical and applied research of Turbo codes. However, there are currently no systematic books in China that elaborate on the principles and applications of Turbo codes. For those aspiring to engage in the theoretical and applied research of Turbo codes, a comprehensive book that covers the fundamental research content of Turbo codes would help guide them quickly into this vibrant field of study. This is also the original intention of the author in writing this book. Turbo codes are one of the most significant research achievements in the field of information and coding since the introduction of TCM technology in 1982. This book primarily introduces the principles and application technologies of Turbo codes. Based on an introduction to the basic encoding and decoding principles and algorithms of Turbo codes, it provides a detailed explanation of the characteristics, analysis methods, component codes, and interleavers of key components. It delves into the principles and convergence of Turbo iterative decoding, as well as the stopping criteria for iterative decoding. Additionally, it focuses on the application of the Turbo iterative principle in channel estimation, iterative equalization, and signal synchronization. This book is based on the fundamental ideas and principles of Turbo coding technology, offering both an analysis and explanation of basic concepts, as well as an emphasis on the derivation of important theories and the validation of simulation experiments. The content is arranged to help readers clearly understand and learn the theoretical significance and practical value of these technologies. This book can serve as a reference for senior undergraduate students, graduate students, teachers, and researchers in institutions of higher learning and research institutions engaged in error-correcting code research, as well as for technical personnel who wish to understand and master the latest technologies in Turbo codes.