Title :
Performance of optimum transmitter power control in CDMA cellular mobile systems
Author_Institution :
Div. of Corp. Res. & Dev., QUALCOMM Inc., San Diego, CA, USA
fDate :
3/1/1999 12:00:00 AM
Abstract :
Efficient power control is of great importance in the design of high-capacity cellular radio systems. Optimum power control scheme (OPCS), in the sense that it minimizes the outage probability, has been fully investigated for frequency-division multiple-access/time-division multiple-access (FDMA/TDMA) cellular systems. In this paper, optimum power control theory is introduced to code-division multiple-access (CDMA) cellular systems to derive upper performance bounds for all types of transmitter power control schemes. Simulation results indicate that the OPCS will increase the CDMA system capacity by more than 1.9 dB over the perfect average power control scheme under IS-95-defined radio condition
Keywords :
cellular radio; channel capacity; code division multiple access; optimisation; power control; radio transmitters; radiofrequency interference; telecommunication control; CDMA cellular mobile systems; FDMA/TDMA; IS-95-defined radio condition; SIR balancing problem; code-division multiple-access; frequency-division multiple-access; high-capacity cellular radio systems; optimum power control scheme; optimum power control theory; optimum transmitter power control; outage probability; perfect average power control scheme; signal to interference ratio; simulation results; system capacity; time-division multiple-access; upper performance bounds; Base stations; Control systems; Eigenvalues and eigenfunctions; Frequency division multiaccess; Multiaccess communication; Power control; Power system modeling; Radio control; Radio transmitters; Time division multiple access;
Journal_Title :
Vehicular Technology, IEEE Transactions on
