| Scrambling Techniques for CDMA Communications addresses spreading, scrambling, and synchronization techniques for use in inter-cell synchronous and asynchronous CDMA systems, including the IMT-2000. It provides fundamental background material for sequences and shift register generators, and demonstrates various acquisition techniques in primitive, advanced levels, and in the third generation (3G) DS/CDMA cellular systems. In addition, it introduces the novel acquisition techniques DSA (Distributed Sample Acquisition) and CDMA (Correlation-aided DSA) that enable rapid and robust acquisition of inter-cell synchronous and asynchronous IMT-2000 CDMA systems. Scrambling Techniques for CDMA Communications will be invaluable to wireless communication engineers, and in particular those involved in theoretical and design works related to spreading, scrambling, and synchronization of CDMA communication systems.
With the advent of IMT-2000, CDMA has emerged at the focal point of interest in wireless communications. Now it has become impossible to discuss wireless communications without knowing the CDMA technologies. There are a number of books readily published on the CDMA technologies, but they are mostly dealing with the traditional spread-spectrum technologies and the IS-95 based CDMA systems. As a large number of novel and interesting technologies have been newly developed throughout the IMT-2000 standardization process in very recent years, new reference books are now demanding that address the diverse spectrum of the new CDMA technologies.
Spreading, Scrambling and Synchronization, collectively, is a key component of the CDMA technologies necessary for the initialization of all types of CDMA communications. It is a technology unique to the CDMA communications, and thus understanding of the spreading and scrambling techniques is essential for a complete understanding of the CDMA systems. Research of the spreading/scrambling techniques is closely related to that of the code synchronization and identification techniques, and the structure of a CDMA system takes substantially different form depending on the adopted spreading/scrambling methods. |