TY - GEN
T1 - Comparison of derivative based and derivative free Kalman filters for multipath channel estimation in CDMA networks
AU - Ali, Zahid
AU - Landolsi, Mohamed Adnan
AU - Deriche, Mohammad A.
PY - 2009
Y1 - 2009
N2 - The paper compares time delay and channel gain estimation for multipath fading Code Division Multiple Access (CDMA) signals using the derivative based and derivative free Kalman filters. We will be investigating the performance of the derivative based Kalman filter namely Extended Kalman Filter (EKF) with the derivative free Sigma Point Kalman Filters (SPKF), namely the Unscented Kalman Filter (UKF) and the second order Divided Difference Filter (DDF). Given the nonlinear dependency of the channel parameters on the received signals in multiuser/multipath scenarios, we show that the SPKF achieves better performance than its linear counterparts. This derivativefree Kalman filtering approach, avoids the errors associated with linearization in the conventional Extended Kalman Filter (EKF). The simulation results also demonstrates that the proposed SPKF algorithms are simpler to implement, and more resilient to nearfar interference in CDMA networks.
AB - The paper compares time delay and channel gain estimation for multipath fading Code Division Multiple Access (CDMA) signals using the derivative based and derivative free Kalman filters. We will be investigating the performance of the derivative based Kalman filter namely Extended Kalman Filter (EKF) with the derivative free Sigma Point Kalman Filters (SPKF), namely the Unscented Kalman Filter (UKF) and the second order Divided Difference Filter (DDF). Given the nonlinear dependency of the channel parameters on the received signals in multiuser/multipath scenarios, we show that the SPKF achieves better performance than its linear counterparts. This derivativefree Kalman filtering approach, avoids the errors associated with linearization in the conventional Extended Kalman Filter (EKF). The simulation results also demonstrates that the proposed SPKF algorithms are simpler to implement, and more resilient to nearfar interference in CDMA networks.
UR - https://www.scopus.com/pages/publications/73149118927
U2 - 10.1109/WICOM.2009.5305051
DO - 10.1109/WICOM.2009.5305051
M3 - Conference contribution
AN - SCOPUS:73149118927
SN - 9781424436934
T3 - Proceedings - 5th International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2009
BT - Proceedings - 5th International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2009
ER -