Analysis for Link Reliability of Channelized Satellite Communication System

This paper investigates the problem of link reliability of the channelized satellite communication systems. By taking the system loading analysis with considering the influence of transponder nonlinearity and the total power limit of the satellite, an optimization model of maximizing the minimum value is constructed for the link reliability metric of the system, and a maximum value back-off search algorithm is proposed to solve the subchannel gains of the model, which convert the non-linear non-convex maximization optimization problem into a one-dimensional search problem. The simulation results show that, in the case of maintaining the same power efficiency of the transponder, the proposed algorithm can increase the link reliability metric of the system more than 1-fold when compared with the existing algorithms, which effectively improves the link reliability of the system.