Abstract:
The capacity of Wideband Code Division Multiple
Access (WCDMA) technologies in Universal
Mobile Telecommunication System (UMTS) relies
on efficient power control algorithms. The typical
UMTS power control algorithm is based on fixed
step size. Therefore, it causes oscillations when the
radio channel is unchanged. Furthermore, it lacks
abilities to cope with rapid variations in fast fading
channels. In this paper, we propose a new adaptive
power control algorithm for in UMTS. The
proposed algorithm can mitigate the oscillations
when the channel changes slowly. Moreover, it is
capable for tracking rapid changes in fast fading
channels, where the typical UMTS power control
algorithm fails to handle.
