Performance enhancement of MC-CDMA system for high speed mobile users

Abstract

Wireless broadband access system is operated in high mobility as well as high data rate environment. It is essential to consider the system that can be applied with or without perfect channel state information, has additional spectrum efficiency, and reducing selective fading issues. The proposed method is known as MC CDMA multilevel coding system model. The multilevel coding system model is able to solve all those problems. Consider this system can accommodate different bandwidth usage, Qos and channel response for each user. From the results of research, it can be concluded that in common the MC CDMA multilevel coding scheme gives good performance with high speed user in non-coherent channel transmission method.