Title :
Probability of false power control command in CDMA systems subject to measurement errors
Author :
Wang, Li-Chun ; Chang, Chih-Wen
Author_Institution :
Dept. of Commun. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
fDate :
4/1/2005 12:00:00 AM
Abstract :
In this letter we introduce a new performance measurement, the probability of false power control command (PFC), to evaluate the impact of measurement errors on the closed-loop power control in code division multiple access systems. We derive a closed-form expression for PFC. As compared to the variable-step-sized power control, we find that the fixed-step-sized CLPC scheme, thanks to its nonlinear operation in the up/down control scheme, is less sensitive to the measurement error.
Keywords :
code division multiple access; power control; probability; telecommunication control; CDMA systems; code division multiple access; false power control command probability; fixed-step-sized CLPC scheme; measurement errors; Analytical models; Closed-form solution; Delay; Error correction; Fading; Feedback loop; Measurement errors; Multiaccess communication; Power control; Quantization;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2005.04002
