Performance of a reverse link code-division multiple-access (CDMA) system w
ith fast close-loop power control algorithms is studied. It is found that i
f fast close-loop power control algorithm functions effectively, the speed
of the mobile unit is in the range such that its Doppler frequency is less
than one tenth of the power control updating rate. This paper also proposes
a new predictive power control algorithm with better performance in terms
of system capacity than the conventional and adaptive step size algorithms.
An increase in system capacity as high as 22% compared with the convention
al algorithm can be achieved depending on the mobile velocity.