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Optimal inter-beam power allocation algorithm for multi-beam broadband satellite systems

LI Guangxia1,FENG Qi1,FENG Shaodong2(1.College of Communications Engineering,PLA Univ.of Sci.& Tech.,Nanjing 210007,China; 2.Unit No.96610 of PLA,Beijing 102208,China)  
To meet the different traffic demands of each beam and improve the power efficiency on board in the multi-beam satellite systems,the power allocation method was optimized.Fully considering the difference of the channel conditions and the minimum capacity requirement of each beam,an optimaled inter-beam power allocation(OIBPA) algorithm was proposed based on the service fairness and the maximum total capacity,and analys with convex optimization algorithm.According to the simulation results,compared with the traditional power allocation algorithms,the OIBPA algorithm improves the power efficiency of the satellite by reducing the computational complexity,and can be flexibly adjusted according to the business priorities based on the consideration of the channel conditions.It is fit for the multi-beam satellite systems.
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