Title :
Power control and rate management for wireless multimedia CDMA systems
Author :
Sung, Chi Wan ; Wong, Wing Shing
Author_Institution :
Dept. of Comput. Sci., Chinese Univ. of Hong Kong, Shatin, China
fDate :
7/1/2001 12:00:00 AM
Abstract :
We consider a wireless multimedia code-division multiple-access system, in which the terminals transmit at different rates. We formulate the problem as a constrained optimization problem, with the objective of maximizing the total effective rate. An optimal power control strategy is derived. When the scale of the system is large, the optimal solution takes a simple form, which is easy to be applied practically. Furthermore, our basic model can be extended to include delay-sensitive traffic
Keywords :
cellular radio; code division multiple access; delays; multimedia communication; multiuser channels; optimisation; power control; quality of service; telecommunication control; telecommunication network management; telecommunication traffic; QoS; code-division multiple-access system; constrained optimization problem; delay-sensitive traffic; mobile communication systems; optimal power control; rate management; single-cell CDMA system; voice terminals; wireless multimedia CDMA systems; Bit rate; Constraint optimization; Energy management; Linear programming; Multiaccess communication; Multimedia systems; Power control; Power system management; Quality of service; Resource management;
Journal_Title :
Communications, IEEE Transactions on
