Adaptive Power Allocation in a Nonlinear Satellite Repeater

Abstract

Adaptive power allocation in a frequency multiplexed satellite transponder is designed to utilize satellite-transmitted power more effectively. When a large number of communication links share a satellite transponder, adaptive power control can significantly improve the communication capacity which is a function of the specified network availability. This paper analyzes a general mathematical model of power control in a nonlinear transponder. It is shown that a single inequality is a necessary and sufficient condition for being able to simultaneously satisfy all of the communication link requirements. If link assignments do not exceed the adaptive capacity represented by this inequality, then adaptive satellite power control can maintain the specified network availability while increasing communication capacity.