Title :
Performance analysis of conventional RAKE receivers with channel estimation for a BPSK WCDMA downlink
Author :
Guenach, M. ; Vandendorpe, Luc
Author_Institution :
Commun. & Remote Sensing Lab., Univ. Catholique de Louvain, Belgium
Abstract :
In this paper, we investigate the performance of conventional RAKE receivers using maximum ratio combining (MRC) for a UMTS terrestrial radio wideband code division multiple access (UTRA-WCDMA) downlink. Both perfect and non-perfect multipath slowly Rayleigh fading channel estimations are considered. Exact bit error probabilities (BER) are derived, using quadratic forms and characteristic functions, for BPSK modulation. The users may have different bit rates. Then, the mean-squared estimation error (MSEE) of the channel tap weights is computed and compared to the Cramer-Rao lower bound (CRLB)
Keywords :
Rayleigh channels; code division multiple access; error statistics; land mobile radio; mean square error methods; parameter estimation; phase shift keying; radio receivers; BER; BPSK W-CDMA downlink; Cramer-Rao lower bound; UMTS terrestrial radio; UTRA; bit error probabilities; channel estimation; channel tap weights; characteristic functions; conventional RAKE receivers; maximum ratio combining; mean-squared estimation error; multipath slowly Rayleigh fading channel estimations; quadratic forms; wideband code division multiple access downlink; 3G mobile communication; Binary phase shift keying; Bit error rate; Downlink; Error probability; Fading; Multiaccess communication; Multipath channels; Performance analysis; Wideband;
Conference_Titel :
Communications and Vehicular Technology, 2000. SCVT-200. Symposium on
Conference_Location :
Leuven
Print_ISBN :
0-7803-6684-0
DOI :
10.1109/SCVT.2000.923362
