Title :
Tap selection scheme in a W-CDMA system over multipath fading channels
Author :
Zhenhong, Li ; Mämmelä, Aarne
Author_Institution :
VTT Electron., Oulu, Finland
Abstract :
The simulated bit error rate (BER) performance of the downlink of a W-CDMA system, which uses space and path diversity techniques over a Rayleigh fading multipath channel, is evaluated. A RAKE tap selection scheme exploiting periodically inserted pilot symbols is presented and a threshold is utilized to select the strongest paths for maximal ratio combining (MRC) RAKE combination. The simulation results show that the proposed simple scheme works well in multipath fading channels
Keywords :
Rayleigh channels; broadband networks; code division multiple access; diversity reception; error statistics; land mobile radio; multipath channels; multiuser channels; radio links; radio receivers; RAKE tap selection; Rayleigh fading multipath channel; W-CDMA system; bit error rate; downlink; maximal ratio combining; mobile radio; multipath fading channels; path diversity; periodically inserted pilot symbols; simulated BER performance; simulation results; space diversity; threshold; Bit error rate; Diversity reception; Downlink; Fading; Multiaccess communication; Multipath channels; Rayleigh channels; Receivers; Signal to noise ratio; Wideband;
Conference_Titel :
Communication Technology Proceedings, 1998. ICCT '98. 1998 International Conference on
Conference_Location :
Beijing
Print_ISBN :
7-80090-827-5
DOI :
10.1109/ICCT.1998.743258
