Title :
A novel method of channel estimation for W-CDMA
Author :
Xiaojian, Dong ; Xiaohu, You
Author_Institution :
Dept. of Radio Eng., Southeast Univ., Nanjing, China
Abstract :
Estimation of Rayleigh fading channels using time multiplexed pilot symbols in W-CDMA (FDD) is considered. A method of interpolation on a second-order curve using the instantaneous channel estimation of two successive slots based on the least square method (SOLSM) is presented. It is demonstrated by computer simulations that the channel distortion on the data symbols in a slot can be estimated effectively compared to the method using simple linear interpolation, and the performance of the RAKE combiner is improved effectively especially in fast moving cases.
Keywords :
Rayleigh channels; broadband networks; cellular radio; estimation theory; frequency division multiplexing; interpolation; least squares approximations; radio receivers; time division multiplexing; FDD; RAKE combiner; Rayleigh fading channels; SOLSM; W-CDMA; channel distortion; channel estimation; data symbol; interpolation; second-order curve; successive slots based on the least square method; time multiplexed pilot symbols; Channel estimation; Delay effects; Diversity reception; Downlink; Fading; Interpolation; Least squares methods; Mobile communication; Multiaccess communication; Multipath channels;
Conference_Titel :
Communications, 1999. APCC/OECC '99. Fifth Asia-Pacific Conference on ... and Fourth Optoelectronics and Communications Conference
Print_ISBN :
7-5635-0402-8
DOI :
10.1109/APCC.1999.824950
