Multistage channel estimation with LMS parallel interference cancellation for asynchronous DS-CDMA in frequency-selective Rayleigh channels
Xiaoming Xue, Tjeng Thiang Tjhung · 2002
We propose a multistage channel estimation method using LMS parallel interference cancellation with the assistance of periodically transmitted pilot symbols. After obtaining the channel estimates, the performance of various parallel interference methods are evaluated. RAKE reception and maximum ratio combining (MRC) are adopted. Simulation results show that the proposed channel estimation scheme for DS-CDMA system works well in frequency-selective Rayleigh fading channels with Doppler spread when the system load is not too high.