Title :
A novel channel estimation scheme with least square fitting
Author :
Xu, Changlong ; Yu, Xiaohu
Author_Institution :
Nat. Mobile Commun. Res. Lab., Southeast Univ., Nanjing, China
fDate :
6/24/1905 12:00:00 AM
Abstract :
For continuous pilot CDMA system, the moving average filter is a conventional scheme for channel estimation, which can suppress the noise. To reduce the noise further, a novel channel estimation scheme that fits the output sequence of the moving average filter with least square approach is presented in this paper. The proposed scheme improves the accuracy of channel estimation and the BER performance of the coherent RAKE receiver, which is demonstrated by analysis and simulations.
Keywords :
code division multiple access; fading channels; filtering theory; interference suppression; least squares approximations; mobile radio; parameter estimation; spread spectrum communication; 3G mobile communication; BER performance; DS-CDMA; channel estimation scheme; coherent RAKE receiver; continuous pilot CDMA system; continuous pilot channel; fading channel; least square fitting; mobile radio; moving average filter; noise suppression; Analytical models; Bit error rate; Channel estimation; Fading; Filters; Least squares approximation; Multiaccess communication; Multipath channels; Noise reduction; Performance analysis;
Conference_Titel :
Vehicular Technology Conference, 2002. VTC Spring 2002. IEEE 55th
Print_ISBN :
0-7803-7484-3
DOI :
10.1109/VTC.2002.1002581
