Title :
RAKE receiver performance for CDMA systems with quasi-orthogonal codes and forward link fast power control
Author_Institution :
Ericsson Inc., NC, USA
Abstract :
We study the performance of fast forward link power control in CDMA systems. This feature is a new enhancement in the 3G of cellular CDMA standards. We consider a single cell system and study the effect of Doppler frequency and the number of users on the performance. We also study the effect of forward link power control on the performance of users that are assigned quasi-orthogonal codes, which is a set of codes with low but non-zero cross-correlation. It is shown that forward link power control improves the bit error rate performance of the CDMA system considerably and reduces the outage probability
Keywords :
AWGN; Rayleigh channels; cellular radio; code division multiple access; codes; error statistics; multiuser channels; power control; radio links; radio receivers; radiofrequency interference; telecommunication control; AWGN; BER performance; CDMA systems; Doppler frequency; RAKE receiver performance; Rayleigh fading; bit error rate performance; forward link fast power control; interference; nonzero cross-correlation codes; outage probability reduction; quasi-orthogonal codes; single cell system; third generation cellular CDMA standards; 3G mobile communication; Bit error rate; Fading; Frequency; Interference; Multiaccess communication; Multipath channels; North America; Power control; Signal to noise ratio;
Conference_Titel :
Vehicular Technology Conference Proceedings, 2000. VTC 2000-Spring Tokyo. 2000 IEEE 51st
Conference_Location :
Tokyo
Print_ISBN :
0-7803-5718-3
DOI :
10.1109/VETECS.2000.851370
