Evaluation of spreading method for code phase-shift multiplexing multi-carrier CDMA system

摘要

We have developed the multi-carrier CDMA system using a code phase-shift multiplexing for the forth generation mobile communications in down-link. Our system is possible to multiplex by using a single spreading code so that our system has good code-use efficiency. In our system, we can use the spreading methods, in which time and frequency resources are effectively used. We evaluate the performance for spreading methods by computer simulations in the multi-path fading channel in an assumed 40 environment.