Title :
Modified leaky LMS algorithm for channel estimation in DS-CDMA systems
Author :
Jo, Sungkwon ; Choi, Jihon ; Lee, Yong H.
Author_Institution :
Samsung Electron. Co. Ltd, South Korea
Abstract :
A simple adaptive least mean square (LMS) type channel estimation is developed through some modification of FIR Wiener filtering. A condition that guarantees the convergence of the algorithm and theoretical mean square error (MSE) values are derived. Computer simulation results demonstrate that the proposed algorithm can yield smaller MSE than existing techniques, and that its performance is close to that of optimal Wiener filtering
Keywords :
FIR filters; Wiener filters; adaptive estimation; adaptive filters; code division multiple access; convergence of numerical methods; least mean squares methods; spread spectrum communication; telecommunication channels; DS-CDMA Systems; FIR Wiener filtering; MSE values; adaptive least mean square type channel estimation; convergence; mean square error values; modified leaky LMS algorithm; Adaptive filters; Channel estimation; Computer science; Cutoff frequency; Equations; Fading; Finite impulse response filter; Least squares approximation; Multiaccess communication; Wiener filter;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd
Conference_Location :
Rhodes
Print_ISBN :
0-7803-6728-6
DOI :
10.1109/VETECS.2001.944918
