Abstract:The impact of Doppler on the receiver’s BER performance of TDD pre-equalized OFDM systems is investigated. The analytic BPSK BER expressions of amplitude and phase pre-equalized OFDM systems in multi-path Rayleigh fading environment are given, which undergoes Doppler frequency shift. The computer simulations verify theoretical results. In TDD pre-equalization OFDM systems, the Doppler frequency shift would make channel time-variant, degrade system performance. A new structure adopting Wiener predictor filter is proposed in such systems to improve system performance greatly.
刘大为; 唐友喜;李少谦. 多普勒频移对预均衡OFDM系统的性能影响[J]. 电子与信息学报, 2006, 28(3): 440-445 .
Liu Da-wei; Tang You-xi; Li Shao-qian. Impact of Doppler on BER Performance in TDD Pre-equalization OFDM Systems. , 2006, 28(3): 440-445 .