TY - GEN
T1 - Sigma point Kalman filters for multipath channel estimation in CDMA networks
AU - Ali, Zahid
AU - Deriche, Mohammed A.
AU - Landolsi, Mohamed Adnan
PY - 2009
Y1 - 2009
N2 - The paper investigates time delay and channel gain estimation for multipath fading Code Division Multiple Access (CDMA) signals using the Sigma Point Kalman Filters (SPKF), namely Unscented Kalman Filter (UKF) and 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 achieve 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 numerical results also show that the proposed SPKF algorithms are simpler to implement, and more resilient to nearfar interference in CDMA networks.
AB - The paper investigates time delay and channel gain estimation for multipath fading Code Division Multiple Access (CDMA) signals using the Sigma Point Kalman Filters (SPKF), namely Unscented Kalman Filter (UKF) and 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 achieve 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 numerical results also show 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/71449102305
U2 - 10.1109/ISWCS.2009.5285296
DO - 10.1109/ISWCS.2009.5285296
M3 - Conference contribution
AN - SCOPUS:71449102305
SN - 9781424435845
T3 - Proceedings of the 2009 6th International Symposium on Wireless Communication Systems, ISWCS'09
SP - 423
EP - 427
BT - Proceedings of the 2009 6th International Symposium on Wireless Communication Systems, ISWCS'09
T2 - 2009 6th International Symposium on Wireless Communication Systems, ISWCS'09
Y2 - 7 September 2009 through 10 September 2009
ER -