The simulation results show that, if the variance of channel estimation error is less than 10-4, the 16QAM system can achieve the preferred BER performance similar to the one with perfect channel estimation.

• 本文的仿真分析显示,当信道估计误差的方差小于10-4时,16QAM系统可以获得接近理想信道估计时的误码率性能,这一结果具有重要实用意义。