Title :
A new generic multistep power control algorithm for the LEO satellite channel with high dynamics
Author :
Li, Wenzhen ; Dubey, Vimal K. ; Law, Choi Look
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore
Abstract :
LEO satellite CDMA systems, characterized by round-trip delay and high variation in slow fading, call for different considerations on power control algorithms. Based on the criteria of fast response, small over-compensation, oscillation-avoiding and minimum power control error, the transient behavior of the fixed step, adaptive step, and multistep power control algorithms are investigated and compared. A new generic multistep power control algorithm with excellent dynamic performance is proposed for LEO satellite systems.
Keywords :
adaptive systems; code division multiple access; distributed control; fading channels; multiuser channels; power control; radiofrequency interference; satellite communication; telecommunication control; transient analysis; LEO satellite CDMA systems; adaptive step power control algorithm; distributed power control; dynamic performance; fast response; fixed step power control algorithm; generic multistep power control algorithm; logarithmic characteristics; minimum power control error; multilevel quantizer; multiuser access interference; oscillation avoidance; round-trip delay; slow fading; small over-compensation; transient behavior; Adaptive control; Communication system control; Delay; Error correction; Fading; Iterative algorithms; Low earth orbit satellites; Multiaccess communication; Power control; Programmable control;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/4234.957374
