Title :
Performance degradation due to code tracking errors on a RAKE spread-spectrum receiver in the presence of unresolvable multipath
Author :
Maljevic, Ivo ; Sousa, Elvino S.
Author_Institution :
Toronto Univ., Ont., Canada
Abstract :
The effects of multipath and tracking error on a RAKE receiver are analyzed. It is shown that, in the presence of unresolvable multipath, the RAKE receiver, formed by combining the same samples that are used for tracking, is less sensitive to tracking errors, and that there is a wide range of tracking errors for which such a receiver outperforms the conventional receiver. Also, the effects of how interchip interference degrades the performance of the proposed receiver are examined.
Keywords :
3G mobile communication; code division multiple access; multipath channels; radio receivers; radiofrequency interference; spread spectrum communication; tracking; CDMA; RAKE receiver; code tracking errors; interchip interference; spread-spectrum receiver; third generation mobile communications; unresolvable multipath; Degradation; Delay; Fading; Fingers; Matched filters; Multiaccess communication; Multipath channels; RAKE receivers; Spread spectrum communication; Tracking loops;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2002. The 13th IEEE International Symposium on
Print_ISBN :
0-7803-7589-0
DOI :
10.1109/PIMRC.2002.1045492
