Application of Concatenated TPC and STBC in Spread Spectrum Systems

摘要

The application of concatenated Turbo Product Code, that is TPC, and Space Time Block Code, that is STBC, for spread spectrum CDMA systems based on iterative detections and decodes is studied in this paper. In QPSK modulation, comparative coding gain is achieved by Soft-in and Soft-out decoding of concatenated codes, Soft-in and Soft-out MAP Multi-Code detection and their associated iterative process. This kind of iterative process can be extended to high level modulation and MIMO systems.