Title :
Adaptive Water-Filling Power Control for Wireless Communications Networks
Author :
Wang, F. ; Liu, Z.
Author_Institution :
Fac. of Appl. Sci., Memorial Univ. of Newfoundland, St. John´´s, NL
fDate :
10/1/2008 12:00:00 AM
Abstract :
Power control is an important approach to improve capacity of wireless channels. Provided that the channel state is known at both the transmitter and the receiver, the optimal power control is a water-filling strategy which depends on the channel state. In this work, we establish some properties of the water-filling power adaptation strategy and propose an algorithm for the transmitter to automatically tune the water-filling strategy. Numerical examples are provided to show the effectiveness of the proposed algorithm.
Keywords :
channel capacity; fading channels; power control; stochastic processes; telecommunication control; wireless channels; adaptive water-filling; channel capacity; channel state; power control; receiver; transmitter; wireless communications networks; Adaptive control; Automatic control; Bit error rate; Channel capacity; Communication system control; Fading; Power control; Programmable control; Radio transmitters; Wireless communication; Nakagami-m fading channel; Power control; stochastic approximation;
Journal_Title :
Communications Letters, IEEE
Conference_Location :
10/1/2008 12:00:00 AM
DOI :
10.1109/LCOMM.2008.080993
