Performance of MC-CDMA Based on Feedback Pre-equalization Method in Uplink Channel
Xiaopeng Yang, Shi Hao-shan, Kun Yao · 2006
This paper proposes a feedback pre-equalization (F-PE) method based on channel estimation in uplink channel. The transmitter signal is pre-equalized in transmitter by channel estimate information, which form downlink pilot channel. In receiver, the orthognality of each spreading code is restored, but the power of noise isn’t increased. So, the BER performance is improved. Figs.2 through 6 give the simulation results. The F-PE method shows the best BER performance among EGC, MRC, and ORC methods both in synchronous and asynchronous channel.