Title :
An uplink power control based on truncated channel inversion for data traffic in a cellular CDMA system
Author :
Ding, Ling ; Lehnert, James S.
Author_Institution :
Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA
fDate :
5/1/2001 12:00:00 AM
Abstract :
A power control scheme, called truncated channel inversion, in which a mobile suspends transmission when the wireless channel is in a bad condition in order to reduce out-cell interference is examined. It is found that capacity is improved and battery power consumption is reduced as a consequence of suspending transmission, but extra queuing delay is introduced. It is shown that the extra queuing delay depends on how fast the channel characteristics change and that the truncated scheme works well, even for moderate mobile velocities
Keywords :
cellular radio; code division multiple access; data communication; delays; interference suppression; inverse problems; multiuser channels; power control; queueing theory; radio links; radiofrequency interference; telecommunication control; battery power consumption reduction; cellular CDMA system; channel characteristics; data traffic; moderate mobile velocities; out-cell interference reduction; queuing delay; transmission suspension; truncated channel inversion; uplink power control; wireless channel; Adaptive control; Batteries; Delay; Energy consumption; Interference; Multiaccess communication; Power control; Programmable control; Quality of service; Traffic control;
Journal_Title :
Vehicular Technology, IEEE Transactions on
